[Emc-users] Error when compiling sample template file

[Marius]

I am trying to compile a user kinamatics module for a RIP environment 
using master branch.
If I use the template userkfuncs.c to test the compile, I get the error 
as well.


Compiling realtime userkfuncs.c
Linking userkfuncs.so
/usr/bin/ld:userkfuncs.ver:2: syntax error in VERSION script
collect2: error: ld returned 1 exit status
make: *** [/usr/share/linuxcnc/Makefile.modinc:125: userkfuncs.so] Error 1


This happens for the RIP and the debs installation.
Any suggestions please?

Regards
Marius

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Re: [Emc-users] Halcompile broken in master

[Marius]

Ok got it sorted out. I had problems with my branch. I reloaded and 
recompiled it and working is working now.


On 2023/10/10 13:05, Marius wrote:


On 2023/10/10 12:20, andy pugh wrote:

On Tue, 10 Oct 2023 at 10:48, Marius  wrote:


It seems that halcompile has issues in master. it does not recognize a
.c file as legitimate and if you rename that to .comp it gets an error

ValueError: not enough values to unpack ( expected 2, got 1)

That error is because there is no ;; separator in your C file. (nor
should there be)


This is an old file that used to compile



Renaming the file is not the answer here.

Which halcompile command are you using?

I would expect some of the tests to fail if halcompile no longer
recognised .c files, specifically
https://github.com/LinuxCNC/linuxcnc/blob/7823799b76cf644818f3a142eed5724392b2612c/tests/uspace/spawnv-root/test.sh 

https://github.com/LinuxCNC/linuxcnc/blob/7823799b76cf644818f3a142eed5724392b2612c/tests/halcompile/command_line_flags/test.sh 


Though both of those test the building of a non-realtime component.




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Re: [Emc-users] Halcompile broken in master

[Marius]

On 2023/10/10 12:20, andy pugh wrote:

On Tue, 10 Oct 2023 at 10:48, Marius  wrote:


It seems that halcompile has issues in master. it does not recognize a
.c file as legitimate and if you rename that to .comp it gets an error

ValueError: not enough values to unpack ( expected 2, got 1)

That error is because there is no ;; separator in your C file. (nor
should there be)


This is an old file that used to compile



Renaming the file is not the answer here.

Which halcompile command are you using?

I would expect some of the tests to fail if halcompile no longer
recognised .c files, specifically
https://github.com/LinuxCNC/linuxcnc/blob/7823799b76cf644818f3a142eed5724392b2612c/tests/uspace/spawnv-root/test.sh
https://github.com/LinuxCNC/linuxcnc/blob/7823799b76cf644818f3a142eed5724392b2612c/tests/halcompile/command_line_flags/test.sh
Though both of those test the building of a non-realtime component.




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[Emc-users] Fwd: Halcompile broken in master

[Marius]

On 2023/10/10 12:20, andy pugh wrote:

On Tue, 10 Oct 2023 at 10:48, Marius  wrote:


It seems that halcompile has issues in master. it does not recognize a
.c file as legitimate and if you rename that to .comp it gets an error

ValueError: not enough values to unpack ( expected 2, got 1)

That error is because there is no ;; separator in your C file. (nor
should there be)

Renaming the file is not the answer here.

Which halcompile command are you using?


For RIP I used halcompile -- compile -- userspace file.comp

and die the same for installed but with sudo.



I would expect some of the tests to fail if halcompile no longer
recognised .c files, specifically
https://github.com/LinuxCNC/linuxcnc/blob/7823799b76cf644818f3a142eed5724392b2612c/tests/uspace/spawnv-root/test.sh
https://github.com/LinuxCNC/linuxcnc/blob/7823799b76cf644818f3a142eed5724392b2612c/tests/halcompile/command_line_flags/test.sh
Though both of those test the building of a non-realtime component.




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Re: [Emc-users] Halcompile broken in master

[Marius]

This is the full error report

Traceback (most recent call last):
  File "/home/plasma/linuxcnc-dev/bin/halcompile", line 1558, in 
    main()
  File "/home/plasma/linuxcnc-dev/bin/halcompile", line 1528, in main
    process(f, mode, outfile)
  File "/home/plasma/linuxcnc-dev/bin/halcompile", line 1366, in process
    a, b = parse(filename)
  File "/home/plasma/linuxcnc-dev/bin/halcompile", line 441, in parse
    a, b = f.split("\n;;\n", 1)
ValueError: not enough values to unpack (expected 2, got 1)



On 2023/10/10 11:41, Marius wrote:

Hi

It seems that halcompile has issues in master. it does not recognize 
a .c file as legitimate and if you rename that to .comp it gets an error


ValueError: not enough values to unpack ( expected 2, got 1)

Anyone know about this?


Regards

Marius



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[Emc-users] Halcompile broken in master

[Marius]

Hi

It seems that halcompile has issues in master. it does not recognize a 
.c file as legitimate and if you rename that to .comp it gets an error


ValueError: not enough values to unpack ( expected 2, got 1)

Anyone know about this?


Regards

Marius



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[Emc-users] Server down?

[Marius]

Hi

Is the server down? I cannot see the buildbot or the forum.



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Re: [Emc-users] Is there a problem with the Linuxcnc.org server?

[Marius]

And a problem with linuxcnc-doc-es. Takes over an hour to down load.

On 2023/08/08 10:02, Robin Szemeti via Emc-users wrote:

Works fine here ...


On Tue, 8 Aug 2023 at 08:59, Marius  wrote:


Hi

I am trying to install and upgrade but all the files that are downloaded
from the linuxcnc.org server seem to take forever and eventually time
out. Is there a problem or must I look elsewhere?




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Re: [Emc-users] Is there a problem with the Linuxcnc.org server?

[Marius]

Definitely a problem with Linuxcnc-doc-en. I have been trying to update 
from yesterday and every time we get stuck on that file. At least it is 
one that I noticed.


On 2023/08/08 10:02, Robin Szemeti via Emc-users wrote:

Works fine here ...


On Tue, 8 Aug 2023 at 08:59, Marius  wrote:


Hi

I am trying to install and upgrade but all the files that are downloaded
from the linuxcnc.org server seem to take forever and eventually time
out. Is there a problem or must I look elsewhere?




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[Emc-users] Is there a problem with the Linuxcnc.org server?

[Marius]

Hi

I am trying to install and upgrade but all the files that are downloaded 
from the linuxcnc.org server seem to take forever and eventually time 
out. Is there a problem or must I look elsewhere?





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Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Marius]

I did not do the G93 test myself but one of the other members did. The 
gcode is on the thread


On 2023/07/07 18:21, John Allwine wrote:

Can you attach a G code program that uses G93 that demonstrates the issue 
you’re describing with your INI config file you’re using?



On Jul 7, 2023, at 8:19 AM, Marius  wrote:

Have a look at this forum thread where all the testing was done and the 
problem discussed as it was encountered. Everything that you mentioned here was 
tested and the results are not always as expected.

https://forum.linuxcnc.org/plasmac/49293-qtplasmac-with-fourth-axis-rotary?start=60



On 2023/07/07 16:03, Todd Zuercher wrote:
The single line look-ahead is only a limiting factor when commanded g-code 
segments are shorter than what your acceleration settings can achieve the 
commanded speed in.  For example if your machine is configured for 100in/sec^2 
acceleration and milling at 90inchs/min it would be able to maintain full speed 
through g-code with segments a little less than 0.01 inch long without any slow 
down due to single line look-ahead.

Don't be confused by the huge slow down potentially caused by not using G93 
(inverse time feeds) when you should be for mixed linear/angular commands.  
That slow down is caused by the F feed rate being applied in degrees/min 
limiting the moves speed (a 10 degree move at normal F90 will take 6.7 
seconds.)  A move will always be limited by which ever is slower the move's F 
speed in degrees/min or distance/min.  If a combined move's degrees moved is 
greater than the linear distance moved, then the feed rate of the angular move 
will be controlling the time of the move.  Switching from inches to mm in your 
G-code could also have a big effect, making the F settings 25.4 times larger, 
and therefore the angular moves 25.4 times faster.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-----
From: Marius 
Sent: Friday, July 07, 2023 4:17 AM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[EXTERNAL EMAIL] Be sure links are safe.


On 2023/07/06 22:54, John Allwine wrote:
The latest software on the Pocket NC is using the same trajectory planner as 
what is in LinuxCNC.

I haven’t followed the whole thread. What seems to be wrong with the trajectory 
planner when doing 4 or 5-axis?

The trajectory planner only has one line look ahead for any rotary axis.
So this means that trajectory planning is not really happening and performance 
is very poor when trying to achieve faster moves.




On Jul 6, 2023, at 12:34 PM, Eric Keller  wrote:

The Pocket NC runs Machinekit.  I'm told machinekit has a better TP,
but I haven't seen any evidence of that.


On Thu, Jul 6, 2023 at 12:27 PM Roland Jollivet
 wrote:

The small 4-axis CNC machine,'Pocket Nc' uses LinuxCNC as far as I
can tell, and it seems to run just fine. Or does it?

Roland




On Tue, 4 Jul 2023 at 20:16, andy pugh  wrote:


On Tue, 4 Jul 2023 at 18:34, Marius  wrote:
The problem seems to be that our trajectory planner lack the
ability to look ahead for any rotary axis. This means that a
coordinated move that includes a rotary move will be dysfunctional at best.

It's not as bad as that.

There is a 9-axis blending planner in Tormach, but it's not trivial
to merge it with Linuxcnc due to divergence in the codebase.

If we could get hold of the patches that introduced it to Tormach
then we could look at integrating it, but doing it just from
comparing the code sounds hard.

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils
and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Marius]

Have a look at this forum thread where all the testing was done and the 
problem discussed as it was encountered. Everything that you mentioned 
here was tested and the results are not always as expected.


https://forum.linuxcnc.org/plasmac/49293-qtplasmac-with-fourth-axis-rotary?start=60


On 2023/07/07 16:03, Todd Zuercher wrote:

The single line look-ahead is only a limiting factor when commanded g-code 
segments are shorter than what your acceleration settings can achieve the 
commanded speed in.  For example if your machine is configured for 100in/sec^2 
acceleration and milling at 90inchs/min it would be able to maintain full speed 
through g-code with segments a little less than 0.01 inch long without any slow 
down due to single line look-ahead.

Don't be confused by the huge slow down potentially caused by not using G93 
(inverse time feeds) when you should be for mixed linear/angular commands.  
That slow down is caused by the F feed rate being applied in degrees/min 
limiting the moves speed (a 10 degree move at normal F90 will take 6.7 
seconds.)  A move will always be limited by which ever is slower the move's F 
speed in degrees/min or distance/min.  If a combined move's degrees moved is 
greater than the linear distance moved, then the feed rate of the angular move 
will be controlling the time of the move.  Switching from inches to mm in your 
G-code could also have a big effect, making the F settings 25.4 times larger, 
and therefore the angular moves 25.4 times faster.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-----
From: Marius 
Sent: Friday, July 07, 2023 4:17 AM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[EXTERNAL EMAIL] Be sure links are safe.

On 2023/07/06 22:54, John Allwine wrote:

The latest software on the Pocket NC is using the same trajectory planner as 
what is in LinuxCNC.

I haven’t followed the whole thread. What seems to be wrong with the trajectory 
planner when doing 4 or 5-axis?

The trajectory planner only has one line look ahead for any rotary axis.
So this means that trajectory planning is not really happening and performance 
is very poor when trying to achieve faster moves.




On Jul 6, 2023, at 12:34 PM, Eric Keller  wrote:

The Pocket NC runs Machinekit.  I'm told machinekit has a better TP,
but I haven't seen any evidence of that.


On Thu, Jul 6, 2023 at 12:27 PM Roland Jollivet
 wrote:

The small 4-axis CNC machine,'Pocket Nc' uses LinuxCNC as far as I
can tell, and it seems to run just fine. Or does it?

Roland




On Tue, 4 Jul 2023 at 20:16, andy pugh  wrote:


On Tue, 4 Jul 2023 at 18:34, Marius  wrote:
The problem seems to be that our trajectory planner lack the
ability to look ahead for any rotary axis. This means that a
coordinated move that includes a rotary move will be dysfunctional at best.

It's not as bad as that.

There is a 9-axis blending planner in Tormach, but it's not trivial
to merge it with Linuxcnc due to divergence in the codebase.

If we could get hold of the patches that introduced it to Tormach
then we could look at integrating it, but doing it just from
comparing the code sounds hard.

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils
and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Marius]

On 2023/07/06 22:54, John Allwine wrote:

The latest software on the Pocket NC is using the same trajectory planner as 
what is in LinuxCNC.

I haven’t followed the whole thread. What seems to be wrong with the trajectory 
planner when doing 4 or 5-axis?


The trajectory planner only has one line look ahead for any rotary axis. 
So this means that trajectory planning is not really happening and 
performance is very poor when trying to achieve faster moves.





On Jul 6, 2023, at 12:34 PM, Eric Keller  wrote:

The Pocket NC runs Machinekit.  I'm told machinekit has a better TP,
but I haven't seen any evidence of that.


On Thu, Jul 6, 2023 at 12:27 PM Roland Jollivet
 wrote:

The small 4-axis CNC machine,'Pocket Nc' uses LinuxCNC as far as I can
tell, and it seems to run just fine. Or does it?

Roland




On Tue, 4 Jul 2023 at 20:16, andy pugh  wrote:


On Tue, 4 Jul 2023 at 18:34, Marius  wrote:
The problem seems to be that our trajectory planner lack the ability to
look ahead for any rotary axis. This means that a coordinated move that
includes a rotary move will be dysfunctional at best.

It's not as bad as that.

There is a 9-axis blending planner in Tormach, but it's not trivial to
merge it with Linuxcnc due to divergence in the codebase.

If we could get hold of the patches that introduced it to Tormach then
we could look at integrating it, but doing it just from comparing the
code sounds hard.

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Marius]

On 2023/07/06 18:48, Chris Albertson wrote:



On Jul 6, 2023, at 9:22 AM, Roland Jollivet  wrote:

The small 4-axis CNC machine,'Pocket Nc' uses LinuxCNC as far as I can
tell, and it seems to run just fine. Or does it?

Does this device move all four axes at the same time while cutting?  Or does it 
use the fourth axis only to reposition the work?

Very slow moves will be ok with the one line look ahead and one might 
not see the problem but when you start wanting faster synchronized moves 
it becomes a problem. So it could be using all four axis while cutting.






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[Emc-users] Trajectory planner shortcomings

[Marius]

Hi

I have been trying to get a rotary fourth axis setup going with the help 
of regular and knowledgable contributors to LinuxCnc. We came up against 
a brick wall as many other project developers have done.


The problem seems to be that our trajectory planner lack the ability to 
look ahead for any rotary axis. This means that a coordinated move that 
includes a rotary move will be dysfunctional at best.


I understand that there is a free trajectory planner on offer to 
LinuxCnc but it has not been integrated. It would seem that some lack of 
skills or time has a role to play in getting it integrated.


I unfortunately do not have the skills nor the time to tender to assist 
with this however, someone made the suggestion that maybe the community 
could embark on a fund raising project to enable us to pay for someone 
to get the trajectory planner integrated. I am sure that many would 
stand to benefit from this and other users that I have spoken to has 
indicated that they would gladly contribute.


I would at least want to start a discussion around the idea.


Regards

Marius



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[Emc-users] QTPlasmaC with Z moves enabled

[Marius]

Hi all,

@Phill, this question was asked on the forum. Can anyone shed some light 
please?


Does anyone know how QTPlasmaC handles referencing when keep-z-motion = 1?

Regards

Marius

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Re: [Emc-users] stmbl servo drives - want to buy...

[Marius Alksnys]

2022-10-07 14:06, stjohn gold rašė:

Hi,
I need 2 stmbl drives. Does anyone have some they are not using or wish to
sell? Just tell me how much you want and I can arrange to get them picked
up and shipped to me. Send me mail and I will answer!

many thanks,
St.john


I would also be interested in 2..12 stmbl's.





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Re: [Emc-users] PCI-E adapter to PCI?

[Marius Alksnys]

2022-09-12 04:18, Ed rašė:
I have a 5i25 card that needs to be used but late model PC's do not seem 
to use PCI anymore. Does anyone know if the PCI-E to PCI adapters that 
are on ebay and such will drive a 5i25?



TIA, Ed.


Yes, I can confirm they work.



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Re: [Emc-users] Need a way to totally disable ALL of B axis stuff in B not plugged in

[Marius Alksnys]

Gene,

how about setting min and max limits to zero (or other initial value), 
maybe also not enabling B drive?

This can be done in a bash script like:
halcmd unlinkp io-board-going-to-b-servo-drive.enable-pin
halcmd setp ini.4.min_limit 0
halcmd setp ini.4.max_limit 0
halcmd setp ini.b.min_limit 0
halcmd setp ini.b.max_limit 0

or in HAL with mux_generic
http://linuxcnc.org/docs/html/man/man9/mux_generic.9.html

2022-05-19 11:07, gene heskett wrote:

Greetings all;

On this 6040 mill. It can be a 3 axis, or a 4 axis, so I would like to
devise a way to put ALL the B axis stuff in seperate files, but have not
figured out how to do that to the ini.

What I have started is an additional jumper on the home switch that sets
a hal file "net" titled "b-prsnt" true or false according to whether or
not its plugged in.  But this signal is not available at ini file read
time.

What I need is a common way to control whether an include file is loaded
for both the ini and the hal. Two separate files obviously.

I hate the idea of having to keep two configurations in synch with each
other. One for xyz, and one for xyzb.

Can something like that be cobbled up?

Thank you all.

Cheers, Gene Heskett.





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Re: [Emc-users] [Emc-developers] Why not have a trivkins setup with a slave axis

[Marius]

On 2022/04/16 08:55, Marius wrote:


On 2022/04/15 18:58, Andy Pugh wrote:



On 15 Apr 2022, at 12:52, Marius  wrote:

Just wondering why is it not possible to have a standard three axis 
trivkins setup with a possibility to slave a stepgen to any one of 
the axis.

You can do that. In fact it is very easy.

net joint.0.motor-pos-cmd stepgen.0.position-cmd stepgen.4.position-cmd

ie pass the position command to two stepgens.


I discovered that eventually. It works very well.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/14 18:58, Peter C. Wallace wrote:


I suspect that you are right. For the sake of time running out I 
just slaved the X stepgen in the bit file. I am using a simple 
trivkins with no slave axis defined. The only issue now is that 
the DIR signal on the slave has to be inverted somehow. Is there 
a way to NOT the pin in the bit definition?


setp hm2_7i92.0.stepgen.xx.direction.invert_output true


I know that one but I am brutalizing the bit file by putting the 
stepgen 0 on two allocations. I would like to invert the 
StepGenDirPin in the bit file before I compile. If possible.




That seem;a a bit crazy to me and prevents proper gantry homing for 
example

why not just fix the hal file?


Agreed but I am now desperate to get things working. I have no 
control over that section of the hal file. The slave axis looks 
identical to the master axis. I cannot see anything that I can do to 
fix it.


I have a thought about the issue. I set kinstype from BOTH to 1 in 
order to combine the jog buttons and the machine is not forced to 
home before jogging. The machine only has one home switch on every 
axis. SO maybe the rules are not met. I don't know.


This is a drop in upgrade so I am not allowed to change any of the 
wiring. The machine ran on Mach3 previously.




I would check if the joint for X2 axis is actually connected
I suspect the kinmatics it not correct

Note if you want to duplicate the x axis  joint on another stepgen
you just run both stepgens/PIDs from the same joint commanded position
position command, basically only 2 hal lines need to be changed,
the X2 joint PIDs commanded and feedback positions



Actually on the the X2 joint command position needs to change
(to come from X's joint) the PID feedback still comes from the X2 stepgen


So what I did was this: I reprogrammed the 7i92 with a stepgen charge 
pump on pin 1 (db25) and just the normal X,Y Z and A configuration with 
normal I/O for a DB25 BOB. No slave tandem stepgen on the slave pins.


Then I configured using PnCConf discovery mode to the same as above. I 
then copied the X axis stepgen and assigned it to the slave stepgen 
number. I connected the slave stepgen signals to the X axis stepgen and 
there you go.


Only proble left is the dpll ans stepgen timer that I am missing somehow

Now I have:

X  - 2/3

X2 - 4/5

Y - 6/7

a - 8/9













Peter Wallace
Mesa Electronics



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[Emc-users] Why not have a trivkins setup with a slave axis

[Marius]

Hi

Just wondering why is it not possible to have a standard three axis 
trivkins setup with a possibility to slave a stepgen to any one of the axis.


So it is not part of the kinematics just slaved to the command signal of 
any axis?


It is done in Mach3 and I have installed many machines that run like 
that. So not in gantry mode but in a slaved mode. It is an acceptable 
way of building routes etc.


It would be great if that was possible as there are many machines that 
need to migrate to Linuxcnc using 7i92 cards to plug into the Mach3 BOB's.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/14 18:58, Peter C. Wallace wrote:


I suspect that you are right. For the sake of time running out I 
just slaved the X stepgen in the bit file. I am using a simple 
trivkins with no slave axis defined. The only issue now is that 
the DIR signal on the slave has to be inverted somehow. Is there 
a way to NOT the pin in the bit definition?


setp hm2_7i92.0.stepgen.xx.direction.invert_output true


I know that one but I am brutalizing the bit file by putting the 
stepgen 0 on two allocations. I would like to invert the 
StepGenDirPin in the bit file before I compile. If possible.




That seem;a a bit crazy to me and prevents proper gantry homing for 
example

why not just fix the hal file?


Agreed but I am now desperate to get things working. I have no 
control over that section of the hal file. The slave axis looks 
identical to the master axis. I cannot see anything that I can do to 
fix it.


I have a thought about the issue. I set kinstype from BOTH to 1 in 
order to combine the jog buttons and the machine is not forced to 
home before jogging. The machine only has one home switch on every 
axis. SO maybe the rules are not met. I don't know.


This is a drop in upgrade so I am not allowed to change any of the 
wiring. The machine ran on Mach3 previously.




I would check if the joint for X2 axis is actually connected
I suspect the kinmatics it not correct

Note if you want to duplicate the x axis  joint on another stepgen
you just run both stepgens/PIDs from the same joint commanded position
position command, basically only 2 hal lines need to be changed,
the X2 joint PIDs commanded and feedback positions



Actually on the the X2 joint command position needs to change
(to come from X's joint) the PID feedback still comes from the X2 stepgen


Got that thanks.











Peter Wallace
Mesa Electronics



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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/14 18:51, Peter C. Wallace wrote:

On Thu, 14 Apr 2022, Marius wrote:


Date: Thu, 14 Apr 2022 18:42:53 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file


On 2022/04/14 18:26, Peter C. Wallace wrote:

On Thu, 14 Apr 2022, Marius wrote:


Date: Thu, 14 Apr 2022 17:56:53 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file


On 2022/04/14 17:25, Peter C. Wallace wrote:


I suspect that you are right. For the sake of time running out I 
just slaved the X stepgen in the bit file. I am using a simple 
trivkins with no slave axis defined. The only issue now is that 
the DIR signal on the slave has to be inverted somehow. Is there 
a way to NOT the pin in the bit definition?


setp hm2_7i92.0.stepgen.xx.direction.invert_output true


I know that one but I am brutalizing the bit file by putting the 
stepgen 0 on two allocations. I would like to invert the 
StepGenDirPin in the bit file before I compile. If possible.




That seem;a a bit crazy to me and prevents proper gantry homing for 
example

why not just fix the hal file?


Agreed but I am now desperate to get things working. I have no 
control over that section of the hal file. The slave axis looks 
identical to the master axis. I cannot see anything that I can do to 
fix it.


I have a thought about the issue. I set kinstype from BOTH to 1 in 
order to combine the jog buttons and the machine is not forced to 
home before jogging. The machine only has one home switch on every 
axis. SO maybe the rules are not met. I don't know.


This is a drop in upgrade so I am not allowed to change any of the 
wiring. The machine ran on Mach3 previously.




I would check if the joint for X2 axis is actually connected
I suspect the kinmatics it not correct

Note if you want to duplicate the x axis  joint on another stepgen
you just run both stepgens/PIDs from the same joint commanded position
position command, basically only 2 hal lines need to be changed,
the X2 joint PIDs commanded and feedback positions


It is definitely not connected if the kinstype =1 is set. No position 
command received. I just checked. So your suggestion will solve the 
problem I am sure. Then inverting the slave is also no problem


I will reprogram the 7i92 with 5A_BOBx2D tomorrow and redo the config 
with your suggestion.


Thank you very much for all your help. I am sure you must get frustrated 
with clever dicks like me. I somehow always manage to get the most 
impossible damn jobs.










Peter Wallace
Mesa Electronics



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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/14 18:26, Peter C. Wallace wrote:

On Thu, 14 Apr 2022, Marius wrote:


Date: Thu, 14 Apr 2022 17:56:53 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file


On 2022/04/14 17:25, Peter C. Wallace wrote:


I suspect that you are right. For the sake of time running out I 
just slaved the X stepgen in the bit file. I am using a simple 
trivkins with no slave axis defined. The only issue now is that the 
DIR signal on the slave has to be inverted somehow. Is there a way 
to NOT the pin in the bit definition?


setp hm2_7i92.0.stepgen.xx.direction.invert_output true


I know that one but I am brutalizing the bit file by putting the 
stepgen 0 on two allocations. I would like to invert the 
StepGenDirPin in the bit file before I compile. If possible.




That seem;a a bit crazy to me and prevents proper gantry homing for 
example

why not just fix the hal file?


Agreed but I am now desperate to get things working. I have no control 
over that section of the hal file. The slave axis looks identical to the 
master axis. I cannot see anything that I can do to fix it.


I have a thought about the issue. I set kinstype from BOTH to 1 in order 
to combine the jog buttons and the machine is not forced to home before 
jogging. The machine only has one home switch on every axis. SO maybe 
the rules are not met. I don't know.


This is a drop in upgrade so I am not allowed to change any of the 
wiring. The machine ran on Mach3 previously.







Peter Wallace
Mesa Electronics



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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

This what I done in the bit file


    -- the X stepgen is slaved to pins 4 and 5
    constant PinDesc : PinDescType :=(
--     Base func  sec unit sec func      sec pin     -- external DB25
    IOPortTag & x"00" & PWMTag & PWMAOutPin,             -- I/O 
00    PIN 1        Spindle DAC PWM
    IOPortTag & x"00" & NullTag & NullPin,             -- I/O 01    
PIN 14     just GPIO
    IOPortTag & x"00" & StepGenTag & StepGenStepPin,    -- I/O 
02    PIN 2    X Step
    IOPortTag & x"00" & NullTag & NullPin,             -- I/O 03    
PIN 15    just GPIO
    IOPortTag & x"00" & StepGenTag & StepGenDirPin,        -- I/O 
04    PIN 3        X Dir
    IOPortTag & x"01" & StepGenTag & StepGenStepPin,    -- I/O 
05    PIN 16   Z Step
    IOPortTag & x"00" & StepGenTag & StepGenStepPin,    -- I/O 
06    PIN 4        S Step
    IOPortTag & x"01" & StepGenTag & StepGenDirPin,        -- I/O 
07    PIN 17    Z Dir
    IOPortTag & x"00" & StepGenTag & StepGenDirPin,        -- I/O 
08    PIN 5     S Dir
    IOPortTag & x"02" & StepGenTag & StepGenStepPin,    -- I/O 
09    PIN 6        Y Step
    IOPortTag & x"02" & StepGenTag & StepGenDirPin,        -- I/O 
10    PIN 7        Y Dir
    IOPortTag & x"03" & StepGenTag & StepGenStepPin,    -- I/O 
11    PIN 8        A Step
    IOPortTag & x"03" & StepGenTag & StepGenDirPin,        -- I/O 
12    PIN 9        A Dir
    IOPortTag & x"00" & NullTag & NullPin,             -- I/O 13    
PIN 10    Input 1 just GPIO
    IOPortTag & x"00" & QCountTag & QCountQAPin,         -- I/O 
14    PIN 11    Input 2 (Quad A)
    IOPortTag & x"00" & QCountTag & QCountQBPin,         -- I/O 
15    PIN 12    Input 3 (Quad B)
    IOPortTag & x"00" & QCountTag & QCountIdxPin,        -- I/O 
16    PIN 13    Input 4 (Quad Idx)


On 2022/04/14 17:25, Peter C. Wallace wrote:


I suspect that you are right. For the sake of time running out I just 
slaved the X stepgen in the bit file. I am using a simple trivkins 
with no slave axis defined. The only issue now is that the DIR signal 
on the slave has to be inverted somehow. Is there a way to NOT the 
pin in the bit definition?


setp hm2_7i92.0.stepgen.xx.direction.invert_output true






Peter Wallace
Mesa Electronics



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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/14 17:25, Peter C. Wallace wrote:


I suspect that you are right. For the sake of time running out I just 
slaved the X stepgen in the bit file. I am using a simple trivkins 
with no slave axis defined. The only issue now is that the DIR signal 
on the slave has to be inverted somehow. Is there a way to NOT the 
pin in the bit definition?


setp hm2_7i92.0.stepgen.xx.direction.invert_output true


I know that one but I am brutalizing the bit file by putting the stepgen 
0 on two allocations. I would like to invert the StepGenDirPin in the 
bit file before I compile. If possible.





Peter Wallace
Mesa Electronics



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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/14 16:35, Peter C. Wallace wrote:

On Thu, 14 Apr 2022, Marius wrote:


Date: Thu, 14 Apr 2022 16:18:43 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

Correct. It's not an issue. Just noted it. I looked at the source and 
it does not assign a stepgen to the 16/17 pins of port 2. I might 
want to change that for the next conversion where the Z axis will be 
used.

Did you setup the slave axis as X2?


It does but it deliberately sets it to stepgen 8 so it can be disabled
if use for spinel control on a 5ABOB breakout



I did set it up as X2. The INI and HAL also show that but I dont 
get signal at the pin. I checked with the scope.




Probably a hal issue, I would check the hal file stepgen connections


I checked the hal, it's automagically generated. Not much I can screw 
up there. It looks like it is not getting command or the pins are not 
assigned


If thats the case, that is most likely a hal error. I would trace
the X2 position command with halshow.

I suspect that you are right. For the sake of time running out I just 
slaved the X stepgen in the bit file. I am using a simple trivkins with 
no slave axis defined. The only issue now is that the DIR signal on the 
slave has to be inverted somehow. Is there a way to NOT the pin in the 
bit definition?


Peter Wallace
Mesa Electronics



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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

Correct. It's not an issue. Just noted it. I looked at the source and it 
does not assign a stepgen to the 16/17 pins of port 2. I might want to 
change that for the next conversion where the Z axis will be used.

Did you setup the slave axis as X2?


It does but it deliberately sets it to stepgen 8 so it can be disabled
if use for spinel control on a 5ABOB breakout



I did set it up as X2. The INI and HAL also show that but I dont get 
signal at the pin. I checked with the scope.




Probably a hal issue, I would check the hal file stepgen connections


I checked the hal, it's automagically generated. Not much I can screw up 
there. It looks like it is not getting command or the pins are not assigned





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/13 18:52, Peter C. Wallace wrote:

On Wed, 13 Apr 2022, Marius wrote:


Date: Wed, 13 Apr 2022 18:40:15 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: Peter C. Wallace 
Subject: Re: [Emc-users] Looking for 7i92 bit file

I redid the config with 7i92_5ABOBx2D and the numbers on the side. I 
got the allocation working. The only issue now is that the slave 
stepgen does not give any output. It is assigned correctly but no 
output on the pins. (3/4)


The Z axis is assigned to stepgen 4 on the other port (port 1) 
instead of pin 16/17 on port 2


Thats why I suggested this firmware (you indicated that pins 16 17 
were not stepgens)


Correct. It's not an issue. Just noted it. I looked at the source and it 
does not assign a stepgen to the 16/17 pins of port 2. I might want to 
change that for the next conversion where the Z axis will be used.

Did you setup the slave axis as X2?

I did set it up as X2. The INI and HAL also show that but I dont get 
signal at the pin. I checked with the scope.



On 2022/04/13 18:22, Marius wrote:


Does any of the numbers on the left side of the PnCConf dialog 
correspond to the stepgen numbers?




Yes, the numbers to the left of the stepgen function selector are 
the stepgen number




Thanks I will give it another go.




I cannot get this result at all. With 7i92_5ABOBx2D I do not get 
8/9 assigned at all. It jumps to the next port and then it will 
put stepgen 4 on the second port. You can see that from my 
output that I posted on the forum. I redid the config in many 
ways but I cannot force this allocation at all.







On 2022/04/12 16:35, Peter C. Wallace wrote:

On Tue, 12 Apr 2022, Marius wrote:


Date: Tue, 12 Apr 2022 16:22:37 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can 
get PnCConf to do this. Maybe I dont understand the GUI 
where the pin allocations happen that well. If only they 
would show the I/O number correctly somewhere. There are 
some numbers on the left side but they make no sense.


The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

For example 7i92_5ABOBx2D.bit firmware will work here

You associate stepgen numbers to Axis in pncconf
The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:
On Tue, 12 Apr 2022 at 13:48, Marius 
 wrote:



The config I have to replicate is this.

Seems to be coming through blank.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

Does any of the numbers on the left side of the PnCConf dialog 
correspond to the stepgen numbers?




Yes, the numbers to the left of the stepgen function selector are the 
stepgen number




Thanks I will give it another go.




I cannot get this result at all. With 7i92_5ABOBx2D I do not get 
8/9 assigned at all. It jumps to the next port and then it will put 
stepgen 4 on the second port. You can see that from my output that 
I posted on the forum. I redid the config in many ways but I cannot 
force this allocation at all.







On 2022/04/12 16:35, Peter C. Wallace wrote:

On Tue, 12 Apr 2022, Marius wrote:


Date: Tue, 12 Apr 2022 16:22:37 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can get 
PnCConf to do this. Maybe I dont understand the GUI where the 
pin allocations happen that well. If only they would show the 
I/O number correctly somewhere. There are some numbers on the 
left side but they make no sense.


The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

For example 7i92_5ABOBx2D.bit firmware will work here

You associate stepgen numbers to Axis in pncconf
The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:
On Tue, 12 Apr 2022 at 13:48, Marius 
 wrote:



The config I have to replicate is this.

Seems to be coming through blank.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

Your forum page shows 4 axis using stepgens on DB-25 pins 
2,3,4,5,6,7,8,9, the 7i92_5ABOB config can configure these on the pins.


what is the exact issue you have?


I need to assign as follows:

X to 2/3

X Slave to 4/5

Y to 6/7

A to 8/9




pncconf doesn't support a configuration missing Z so you
will probably need make a XXYZA configuration assigned:

Stepgen 0  X
Stepgen 2  Y
Stepgen 3  A
Stepgen 1  X2
Stepgen 4  Z

and then delete all the Z axis stuff in the hal and ini files


Does any of the numbers on the left side of the PnCConf dialog 
correspond to the stepgen numbers?



I cannot get this result at all. With 7i92_5ABOBx2D I do not get 8/9 
assigned at all. It jumps to the next port and then it will put 
stepgen 4 on the second port. You can see that from my output that I 
posted on the forum. I redid the config in many ways but I cannot 
force this allocation at all.







On 2022/04/12 16:35, Peter C. Wallace wrote:

On Tue, 12 Apr 2022, Marius wrote:


Date: Tue, 12 Apr 2022 16:22:37 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can get 
PnCConf to do this. Maybe I dont understand the GUI where the 
pin allocations happen that well. If only they would show the 
I/O number correctly somewhere. There are some numbers on the 
left side but they make no sense.


The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

For example 7i92_5ABOBx2D.bit firmware will work here

You associate stepgen numbers to Axis in pncconf
The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:
On Tue, 12 Apr 2022 at 13:48, Marius  
wrote:



The config I have to replicate is this.

Seems to be coming through blank.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

Your forum page shows 4 axis using stepgens on DB-25 pins 
2,3,4,5,6,7,8,9, the 7i92_5ABOB config can configure these on the pins.


what is the exact issue you have?


I need to assign as follows:

X to 2/3

X Slave to 4/5

Y to 6/7

A to 8/9

I cannot get this result at all. With 7i92_5ABOBx2D I do not get 8/9 
assigned at all. It jumps to the next port and then it will put stepgen 
4 on the second port. You can see that from my output that I posted on 
the forum. I redid the config in many ways but I cannot force this 
allocation at all.







On 2022/04/12 16:35, Peter C. Wallace wrote:

On Tue, 12 Apr 2022, Marius wrote:


Date: Tue, 12 Apr 2022 16:22:37 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can get 
PnCConf to do this. Maybe I dont understand the GUI where the pin 
allocations happen that well. If only they would show the I/O 
number correctly somewhere. There are some numbers on the left 
side but they make no sense.


The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

For example 7i92_5ABOBx2D.bit firmware will work here

You associate stepgen numbers to Axis in pncconf
The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:
On Tue, 12 Apr 2022 at 13:48, Marius  
wrote:



The config I have to replicate is this.

Seems to be coming through blank.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

On 2022/04/13 16:44, Peter C. Wallace wrote:

On Wed, 13 Apr 2022, Marius wrote:


Date: Wed, 13 Apr 2022 13:16:06 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

Peter

I changed to the firmware that you recommended and I found that the 
stepgen allocations are not as reported. The reported allocations is 
as it is requested in PnCConf but the actual allocations are not 
correct and seems to be random. I reported in the forum.


The stepgen allocations in the 7i92_5ABOBx2D.bit file match the common 
"5 Axis Mach BOB" are are exactly as shown in the 7i92_5ABOBx2D.pin 
pinout file,
I suspect you will have to use pncconf to setup a standard XYZA 
configuration

and modify the hal/ini files for your somewhat odd (XYAB) kinematics

The B axis is actually just a slave axis to the X axis. I get all the 
axis that I need but the pin allocations are not what I need. I have to 
do a drop in conversion so the pinouts much match. The stepgen and 
kinematics are all correct it's just the pin allocations that I cannot 
change.




On 2022/04/12 16:35, Peter C. Wallace wrote:

On Tue, 12 Apr 2022, Marius wrote:


Date: Tue, 12 Apr 2022 16:22:37 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can get PnCConf 
to do this. Maybe I dont understand the GUI where the pin 
allocations happen that well. If only they would show the I/O 
number correctly somewhere. There are some numbers on the left side 
but they make no sense.


The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

For example 7i92_5ABOBx2D.bit firmware will work here

You associate stepgen numbers to Axis in pncconf
The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:

On Tue, 12 Apr 2022 at 13:48, Marius  wrote:


The config I have to replicate is this.

Seems to be coming through blank.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

Peter

I changed to the firmware that you recommended and I found that the 
stepgen allocations are not as reported. The reported allocations is as 
it is requested in PnCConf but the actual allocations are not correct 
and seems to be random. I reported in the forum.


On 2022/04/12 16:35, Peter C. Wallace wrote:

On Tue, 12 Apr 2022, Marius wrote:


Date: Tue, 12 Apr 2022 16:22:37 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: Re: [Emc-users] Looking for 7i92 bit file

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can get PnCConf 
to do this. Maybe I dont understand the GUI where the pin allocations 
happen that well. If only they would show the I/O number correctly 
somewhere. There are some numbers on the left side but they make no 
sense.


The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

For example 7i92_5ABOBx2D.bit firmware will work here

You associate stepgen numbers to Axis in pncconf
The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:

On Tue, 12 Apr 2022 at 13:48, Marius  wrote:


The config I have to replicate is this.

Seems to be coming through blank.





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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

The pinout is determined by the firmware so many
parallel port type 7I92 bitfiles will do

Does this mean that say stepgen 0 is tied to pin 2 and 3 (on db25) and 
so on?


How do I get my pin number allocation as I set it out below. I seem to 
not be able dictate how the stepgens are assigned to axis.



For example 7i92_5ABOBx2D.bit firmware will work here

I tried this first off but had no luck with getting any output so I 
moved to the 7i92_G540x2D.bit



You associate stepgen numbers to Axis in pncconf
Herein lies the problem (mine) I cannot get to arrange them as I want. 
The assignments seem to jump around. I get the first two stepgens 
assigned correctly. X axis and its slave to pins 2/3 and 4/5 - stepgen 0 
and 1. The rest keeps changing if I want to arrange them in my order. So 
if I only need to swap Z and A to get the correct assignments, then 
there would be another stepgen assigned to the slave axis of X. I don't 
seem to be able to make sense of it.

The firmware maps those numbered stepgens to
physical pins



XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:

On Tue, 12 Apr 2022 at 13:48, Marius  wrote:


The config I have to replicate is this.

Seems to be coming through blank.





--


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Re: [Emc-users] Looking for 7i92 bit file

[Marius]

I attached a picture. Don't remember if that can be done.

This is the config I need but I will be damned if I can get PnCConf to 
do this. Maybe I dont understand the GUI where the pin allocations 
happen that well. If only they would show the I/O number correctly 
somewhere. There are some numbers on the left side but they make no sense.


XSTEP - 2 : XDIR -3

X2STEP - 4 : X2DIR - 5

YSTEP - 6 : YDIR - 7

NO Z (or 16 and 17)

ASTEP - 8 : ADIR 9


On 2022/04/12 15:50, andy pugh wrote:

On Tue, 12 Apr 2022 at 13:48, Marius  wrote:


The config I have to replicate is this.

Seems to be coming through blank.





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[Emc-users] Looking for 7i92 bit file

[Marius]

Hi

I am looking for a bit file for the 7i92e that will replicate the 
parallel port to suit a standard BOB. In particular the Greg Paxton BOB.


The config I have to replicate is this.


Motor pin allocations

Regards

Marius


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[Emc-users] WHB04B-6 not finding USB dongle

[Marius]

I am having issues with this component. The HAL component is loaded but 
never finds the USB device. I did however notice that the Product ID of 
the USB stick is not the same as what the component is looking for.

The component loads this

init  not waiting for device XHC-WHB04B-6 vendorId=0x10ce productId=0xeb93, 
will continue in 0s

lsusb reports this:

Bus 001 Device 007: ID 10ce:eb70 Silicon Labs


The product ID is not the same. Could this be a problem?


Regards

Marius


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Re: [Emc-users] Force homed signal

[Marius]

On 2021/08/31 14:46, Todd Zuercher wrote:

Pretty sure all you need to do is set your home position equal to your home 
offset in your ini file, then the machine will not command a move when homing 
is done.
Unfortunately I have to make the move afterwards as the pin location is 
not at the zero point. It's just at some random but fixed location and I 
have to make the offset move to the zero location. This is the problem


Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Sam Sokolik 
Sent: Tuesday, August 31, 2021 7:56 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Force homed signal

[EXTERNAL EMAIL] Be sure links are safe.

Pretty sure you can do this where you set the home position at homing.  (So it doesn't move). 
The k&t homes to 38",34"',24 respectively..  it sets those positions but 
doesn't then move anywhere else.

On Tue, Aug 31, 2021, 2:04 AM Marius  wrote:


On 2021/08/31 03:25, Leonardo Marsaglia wrote:

Hi Marius,

Are you driving your A axis with steppers or servos? What are you
using

as

the physical home switch?

You can always fool the homing sequence at least into some extent. I

wanted

to use servos in open loop but that was incompatible with homing
with index. So I bypassed the home switch for the final detection,
and then feeded the index pulse of the servos making LCNC believe it
was the home switch. May be you can implement something like that.

El lun, 30 ago 2021 a las 9:23, Marius ()

escribió:


It uses steppers and there is no home switch. The machine was built
for
Mach3 and they used a pin to lock the rotary axis in a known place.
Then they applied an offset to put the axis in the zero position. This
position was not where the pin locked the axis. My problem is that I
can apply the pin before the homing cycle starts but I cannot release
it before the offset is applied to the axis at the end of the homing cycle.


Hi

I am trying to create my own homing sequence on the A axis in Gmoccapy.
Is there a way to set the "homed" signal to true once I have done
my sequence?

Regards

Marius



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Re: [Emc-users] Force homed signal

[Marius]

On 2021/08/31 03:25, Leonardo Marsaglia wrote:

Hi Marius,

Are you driving your A axis with steppers or servos? What are you using as
the physical home switch?

You can always fool the homing sequence at least into some extent. I wanted
to use servos in open loop but that was incompatible with homing with
index. So I bypassed the home switch for the final detection, and then
feeded the index pulse of the servos making LCNC believe it was the home
switch. May be you can implement something like that.

El lun, 30 ago 2021 a las 9:23, Marius () escribió:



It uses steppers and there is no home switch. The machine was built for 
Mach3 and they used a pin to lock the rotary axis in a known place. Then 
they applied an offset to put the axis in the zero position. This 
position was not where the pin locked the axis. My problem is that I can 
apply the pin before the homing cycle starts but I cannot release it 
before the offset is applied to the axis at the end of the homing cycle.



Hi

I am trying to create my own homing sequence on the A axis in Gmoccapy.
Is there a way to set the "homed" signal to true once I have done my
sequence?

Regards

Marius



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[Emc-users] Force homed signal

[Marius]

Hi

I am trying to create my own homing sequence on the A axis in Gmoccapy. 
Is there a way to set the "homed" signal to true once I have done my 
sequence?


Regards

Marius



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Re: [Emc-users] Tandem home switches on single axis

[Marius Alksnys]

I think I solved that problem in Emcoturn 220 integration and went even 
further. I added a protection of lost steps with the sensor. Here is my 
config:

https://drive.google.com/drive/folders/1tjU-i8v7iAPqDlRHX5l45pFpincPqneS?usp=sharing

Hope this helps.

On 2021-03-01 06:21, Feral Engineer wrote:

Hello Hive mind,

Question for the group. I have an emco pc turn 55. I've successfully gotten
everything working 100% on LCNC with the exception of one thing, the x and
z axis utilize a mechanical limit switch to latch home position, but then
each axis has a pnp proximity sensor that triggers the actual home position
on a 1 ppr encoder of sorts. I've just been using the mechanical switches,
but I'd like to try and get the proximity sensors working during the home
sequence.

Any suggestions on where to start getting this to work?

Thanks in advance

Phil
The Feral Engineer

Check out my LinuxCNC tutorials, machine builds and other antics at
www.youtube.com/c/theferalengineer





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Re: [Emc-users] 7i76 input with NPN NO

[Marius]

On 2020/09/03 10:06, andy pugh wrote:

On Thu, 3 Sep 2020 at 02:27, James Reed  wrote:

Evidently, I'm not accustomed to the usual NPN proxes.  We have some NPN 
devices at work that have the collector tied to supply, with the emitter as the 
output.

I suspect that the nomenclature is mis-applied in the case of
proximity switches. In the world of prox switches NPN means that the
black wire connected to 0V (Blue) when the switch triggers, and with
PNP it means that the black wire connects to brown (supply) when
triggered. I suspect that this has almost nothing to do with the
distribution of N-type and P-type semiconductors inside.


Andy I share your sentiments here.


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Re: [Emc-users] 7i76 input with NPN NO

[Marius]

On 2020/09/02 20:34, Peter C. Wallace wrote:

On Wed, 2 Sep 2020, Marius wrote:


Date: Wed, 2 Sep 2020 20:07:40 +0200
From: Marius 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] 7i76 input with NPN NO

I am using a 7i76e which has sinking inputs. The machine was built 
using NPN N/O proximity sensors. Am I correct in saying that I have 
to pull the sensor output up with a resistor and then connect that 
junction to the 7i76 input?



Regards

Marius



Yes, you would need a 2K or so pullup for each NPN sensor



Thanks Peter.





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Peter Wallace
Mesa Electronics

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[Emc-users] 7i76 input with NPN NO

[Marius]

I am using a 7i76e which has sinking inputs. The machine was built using 
NPN N/O proximity sensors. Am I correct in saying that I have to pull 
the sensor output up with a resistor and then connect that junction to 
the 7i76 input?



Regards

Marius



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Re: [Emc-users] Best VM to run Linuxcnc in

[Marius]

On 2020/09/02 07:53, Chris Albertson wrote:

[image: image.gif]
[image: image.png]
Just a minute.   Why do you need a VM to demo LinuxCNC?   Boot the live CD.
   Any PC can simply boot the live image and run in simulation mode with no
VM.
It's more that just the demo Chris. I will be doing some development and 
testing later



On Tue, Sep 1, 2020 at 8:23 PM Frank Tkalcevic 
wrote:


I use VMWare player on Windows 10 without any issues.

-Original Message-
From: Marius [mailto:mar...@mastercut.co.za]
Sent: Wednesday, 2 September 2020 1:58 AM
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] Best VM to run Linuxcnc in

What would the VM users say that the best free version of VM would be to
run LinuxCnc in. I have to do a demo for a client and I dont have a
working machine to do so with.

Regards

Marius



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Re: [Emc-users] Best VM to run Linuxcnc in

[Marius]

Hi Rafael

Thanks for the feedback

On 2020/09/02 05:24, Rafael Skodlar wrote:

Hi Marius,

On 9/1/20 9:29 AM, Marius wrote:

Hi Todd

I just need to run a simuation to show some GUI's and fucntionality. 
Thanks I will try VitrualBox.




My test with 2 different version of LinuxCNC in Virtualbox works fine. 
They share space with other 16 VMs for different tests like ROS, 
Ubuntu firewalls, kubernetes, BSD, CentOS, etc.


Virtualbox is inside my Kubuntu workstation. I say go for it.

It would be more impressive if you had a low cost industrial SBC with 
functional LinuxCNC and use it for simple demo with LEDs, switches, 
and a stepper motor or two.


I just have to show the GUI's available. They are familiar with the CNC 
stuff. And I have to do some serious customisation on th eproject so I 
will be showing a lot of backend / HAL stuff to demonstrate the 
feasability of the project.




On 2020/09/01 18:18, Todd Zuercher wrote:
I don't think it really matters much. Just remember that a VM is 
only capable of running Linuxcnc in simulation mode, because VMs are 
incapable of realtime.

I have only used Virtualbox myself and it works fine for simulations.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

.



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Re: [Emc-users] Best VM to run Linuxcnc in

[Marius]

Hi Todd

I just need to run a simuation to show some GUI's and fucntionality. 
Thanks I will try VitrualBox.


On 2020/09/01 18:18, Todd Zuercher wrote:

I don't think it really matters much.  Just remember that a VM is only capable 
of running Linuxcnc in simulation mode, because VMs are incapable of realtime.
I have only used Virtualbox myself and it works fine for simulations.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-----
From: Marius 
Sent: Tuesday, September 01, 2020 11:58 AM
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] Best VM to run Linuxcnc in

[EXTERNAL EMAIL] Be sure links are safe.

What would the VM users say that the best free version of VM would be to run 
LinuxCnc in. I have to do a demo for a client and I dont have a working machine 
to do so with.

Regards

Marius



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[Emc-users] Best VM to run Linuxcnc in

[Marius]

What would the VM users say that the best free version of VM would be to 
run LinuxCnc in. I have to do a demo for a client and I dont have a 
working machine to do so with.


Regards

Marius



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Re: [Emc-users] Machmaker USB -> Parallel

[Marius]

I am going to get one and report back

On 2020/07/23 17:41, Dave Matthews wrote:

A link to a video for this thing showed up in my facecrap feed.  It
looks like a UC-100 only for LinuxCNC 2.9.  They are demoing on a Pi
4.  Has anyone got any experience with the Linumeric-LPT v1?  Price
and ordering are not shown on the site, you are directed to email
them.

Product Link - http://machmaker.pl/index.php?p=1_13

VIdeo - 
https://www.youtube.com/watch?v=txivr8j86t8&feature=youtu.be&fbclid=IwAR04UYfSGbRucny1aek0HVgJGrBkG0FiaxosNx_DQiKoZXNBPOXl1Raue3A

Dave


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[Emc-users] How to add new records to Latency-Test wiki

[Marius Alksnys]

I am making some latency-tests on different PCs. I would like to publish 
some results..


I am trying to log-in to 
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Latency-Test, while I forgot 
the secret name of our mascot.





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Re: [Emc-users] parallel port picie cards

[Marius Alksnys]

Don't forget the simplest and most economic all-in-one solution like 
Mesa 7i96

https://mesaus.com/product-category/ethernet-cards/



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Re: [Emc-users] Yaskawa Servopacks with Mesa

[Marius]

On 2019/12/04 18:41, Mark Johnsen wrote:

Marius,

You need to see what kind of encoder the Yaskawa motor has on it.  I recall
many of them were serial w/ a proprietary Yaskawa protocol, which would
make it hard to run the encoder directly back to the mesa.

Possibly, the servo pack has an 'encoder out' feature that you could run
back to the mesa.  Sometimes those encoder out features are standard
quadrature A, B, Z outputs...  That would work well.


Yes Mark that is the case here.



Mark

On Wed, Dec 4, 2019 at 1:31 AM Marius  wrote:


Hi

I have been requested to convert a router that has Yaskawa Servo Packs
(SGD7S with analog and step/dir and encoders) already installed. The
installation makes use of the STEP/DIR signals currently but with no
encoder feedback.

I intend to use the Mesa 7I95 to replace the Chinese controller. My
question is: Is it ok to use the STEP/DIR feature of this servo pack
with encoder feedback to LCNC or should I go the Analog route and redo
the complete system making use of the 7I97.


Regards

Marius



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[Emc-users] Yaskawa Servopacks with Mesa

[Marius]

Hi

I have been requested to convert a router that has Yaskawa Servo Packs 
(SGD7S with analog and step/dir and encoders) already installed. The 
installation makes use of the STEP/DIR signals currently but with no 
encoder feedback.


I intend to use the Mesa 7I95 to replace the Chinese controller. My 
question is: Is it ok to use the STEP/DIR feature of this servo pack 
with encoder feedback to LCNC or should I go the Analog route and redo 
the complete system making use of the 7I97.



Regards

Marius



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Re: [Emc-users] Plasma Post processor

[Marius Liebenberg]

Your question is a bit cryptic. What software are you using to do the 
CAM with?


On 10/1/2019 5:50 PM, Bhushan Attarde via Emc-users wrote:

how can i implement post porcessor for plasma

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--

Regards / Groete
Marius D. Liebenberg
082 698 3251


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Re: [Emc-users] Mesa PIN file description

[Marius Liebenberg]

On 9/4/2019 9:09 PM, Peter C. Wallace wrote:

On Wed, 4 Sep 2019, Marius Liebenberg wrote:


Date: Wed, 4 Sep 2019 21:03:10 +0200
From: Marius Liebenberg 
Reply-To: "Enhanced Machine Controller (EMC)"
    
To: "Enhanced Machine Controller (EMC)" 


Subject: [Emc-users] Mesa PIN file description

Hi all

Does anyone know of a document or a description somewhere that 
explains the contents, structure and possibilities of the Mesa PIN file?


--

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Marius D. Liebenberg
082 698 3251


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Theres a bit of a description in the main constants file:

IDROMConst.vhd


Thanks Peter I have much clearer picture now. Just one description that 
is not clear is the "PinDescType". What I see in the array is not 
explained in the definition.


/type PinDescType is array(0 to MaxPins -1) of std_logic_vector(31 
downto 0);/


and what is in the array is:

/IOPortTag & x"00" & StepGenTag & StepGenDirPin,     -- I/O 00/

The second field in particular is not clear to me.



Peter Wallace
Mesa Electronics

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Marius D. Liebenberg
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[Emc-users] Mesa PIN file description

[Marius Liebenberg]

Hi all

Does anyone know of a document or a description somewhere that explains 
the contents, structure and possibilities of the Mesa PIN file?


--

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Marius D. Liebenberg
082 698 3251


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[Emc-users] Error compiling Mesa bit file for 7i76E

[Marius Liebenberg]

Hi All

With a lot of help from Peter Wallace I have managed to get my Xilinx 
installation working to compile own bit files.


I compiled successfully for the 5i25 but for the 7i76E I am getting 
errors that might be configuration related. This is the error (and there 
are more similar ones)


Using project "seveni76e" and "PIN_7I76x2D_34" that I found in the 
7i80.zip source file on the web.


HDLCompiler:69 - 
"C:\Users\mariu\Documents\Workshop\Electronics\Mesa\7i92\configs\hostmot2\source\hostmot2\TopEthernet16HostMot2.vhd" 
Line 353:  is not declared.



It would seem that most of the variables in this structure was not found:

Port (    CLK : in std_logic;
                LEDS : out std_logic_vector(LEDCount -1 downto 0);
                IOBITS : inout std_logic_vector(IOWidth -1 downto 
0);        -- external I/O bits
                LIOBITS: inout std_logic_vector (LIOWidth -1 downto 
0);    -- local I/O bits

                ED : inout std_logic_vector(15 downto 0);
                ECMD : out std_logic;
                NEREAD : out std_logic;
                NEWRITE : out std_logic;
                NECS : out std_logic;
                EINT : in std_logic;
                ECLK : out std_logic;
                NERST : out std_logic;
                SPICLK : out std_logic;
                SPIIN : in std_logic;
                SPIOUT : out std_logic;
                SPICS : out std_logic;
                NINIT : out std_logic;
                TP : out std_logic_vector(1 downto 0);
                OPTS : in std_logic_vector(1 downto 0)
         );
end TopEthernetHostMot2;

Any advice please?


--

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Marius D. Liebenberg
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[Emc-users] Compiling mesa bit files

[Marius Liebenberg]

Hi All,

I am trying my hand at getting my own mesa pin files compiled. I am 
getting this error :


C:\xxx\5i25\configs\hostmot2\source\hostmot2\sserialwa.vhd" Line 282: 
Cannot find  in library 


I dont see a VHD file in the directory but there is a zip file with some 
source in that is named sslbp. I take it that I have to compile that 
somehow but I have no idea how. Any suggestions?


P.S. I am compiling the code for hm2pci project

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Marius D. Liebenberg
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Re: [Emc-users] Pin files for 5i25

[Marius Liebenberg]

On 8/27/2019 1:36 PM, Marius Liebenberg wrote:

Hi all

I need to set a 5i25 up as a dual lpt port. I want to replace my 
mill installation with Path Pilot and I need the pin and bit 
files to do that.



Does anyone know where I can go look for the files please?



http://freeby.mesanet.com/software/parallel/5i25.zip



Thanks all. Peter to the rescue. Thanks Peter.
- 
Hopefully last question. There is a load  of files there and the 
names makes no logical sense to me. What file should I be looking at 
please?



Is there a way to build your own bit files?


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Marius D. Liebenberg
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Re: [Emc-users] Pin files for 5i25

[Marius Liebenberg]

On 8/27/2019 8:48 PM, Marius Liebenberg wrote:





On 8/27/2019 1:36 PM, Marius Liebenberg wrote:

Hi all

I need to set a 5i25 up as a dual lpt port. I want to replace my 
mill installation with Path Pilot and I need the pin and bit files 
to do that.



Does anyone know where I can go look for the files please?



http://freeby.mesanet.com/software/parallel/5i25.zip



Thanks all. Peter to the rescue. Thanks Peter.
- 
Hopefully last question. There is a load  of files there and the names 
makes no logical sense to me. What file should I be looking at please?


Regards / Groete
Marius D. Liebenberg
082 698 3251



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Re: [Emc-users] Pin files for 5i25

[Marius Liebenberg]

On 8/27/2019 1:36 PM, Marius Liebenberg wrote:

Hi all

I need to set a 5i25 up as a dual lpt port. I want to replace my 
mill installation with Path Pilot and I need the pin and bit files 
to do that.



Does anyone know where I can go look for the files please?



http://freeby.mesanet.com/software/parallel/5i25.zip



Thanks all. Peter to the rescue. Thanks Peter.


Regards / Groete
Marius D. Liebenberg
082 698 3251



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Re: [Emc-users] Pin files for 5i25

[Marius Liebenberg]

On 8/27/2019 1:36 PM, Marius Liebenberg wrote:

Hi all

I need to set a 5i25 up as a dual lpt port. I want to replace my mill 
installation with Path Pilot and I need the pin and bit files to do that.



Does anyone know where I can go look for the files please?


--

Regards / Groete
Marius D. Liebenberg
082 698 3251



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[Emc-users] Pin files for 5i25

[Marius Liebenberg]

Hi all

I need to set a 5i25 up as a dual lpt port. I want to replace my mill 
installation with Path Pilot and I need the pin and bit files to do that.


--

Regards / Groete
Marius D. Liebenberg
082 698 3251


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Re: [Emc-users] Can anyone identify who did this?

[Marius Alksnys]

Very interesting! I am impressed of what he does.

One comment calls him Дмитрий or Dmitrij, here are some of his posts:
http://www.cnc-club.ru/forum/viewtopic.php?f=41&t=12087&p=437308&hilit=sscnet%40yurtaev.com#p437308

This is his website, I think: http://www.yurtaev.com/

On 2019-02-03 05:32, Greg Bentzinger via Emc-users wrote:

(Greg)

https://www.youtube.com/watch?v=Shkv0kA-pYg

Operator Panel to LinuxCNC as USB HID via STM32

(/Greg)









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Re: [Emc-users] mach3(winderz) vs LCNC bob useage diffs

[Marius Liebenberg]

Subject: Re: [Emc-users] mach3(winderz) vs LCNC bob useage diffs


On Wednesday 02 January 2019 08:58:27 Marius Liebenberg wrote:


 Gene
 You can configure Mach3 to drive anything on any output pin. It is up
 to the creator of the machine and the BOB that is used.
 You can dump the enable signals and hard wire them to be on all the
 time. The last thing you want is for the machine to have the steppers
 switched of and some axis moved.

 Mach3 can drive 6 axis from the parallel port same as LCNC. It's a
 port limitation.

 I have replaced the parport on some Mach machines with a 5i25 board
 with the right firmware used to simulate a parport. I cannot remember
 the name of the pin file but I will try and look for it.


That, Marius, I likely have in the 5i25 in that machine right now, so
don't go out of your way in that. I put the card in it a couple years
ago and had forgotten it. So its running on a real parport ATM.

I went back to bed after posting that since the missus wasn't awake 
yet,

and the first thing I'm going to do is go get the 4 axis box I've been
running the little hf mill with for years. The worst I might have to do
is rearrange the motor coils on the terminal block all the motor cables
hit on the side of that box. Its already set to pound sense into
somewhat bigger nema 23's so I'll only turn the currents down if they
get too hot. That will take care of everything but the spindle, and
there already pwm, dir and a separate enable coming off that bob that I
can wire up to the OEM box when I get tired of running it by hand. I 
see

this vfd can be set to run from a pwm, and is normally driven from the
relay db25-9 controls, but that bob has no relay. Its a late version of
a CNC4PC C1G, the one that has all the leds for trouble shooting.  I
love that bob, but its priced itself out of the market at $80 so its no
longer made. The next best one is the $18 SainSmart, the only opto's 
are

the inputs, and they are easily bypassed if you have a high resolution
encoder, which because mine for the G0704, is on the back of the motor,
has a scale of 7000+ in high gear. and over 14,000 in low gear.  And 
its

plumb amazing how tight the control is now. I can set it in high gear
where the top revs is 3000, to 35 revs, and I cannot stop the spindle 
by

hand!

However, it appears that this 120 volt vfd, although haveing a more
complex setup with 200 setup points acc the docs I found on it, is not
capable of reverse running! At least theres no reverse callout in the
mach pinout I have. We'll have to see, after makeing the 1st 4 axis's
run and scaled correctly, hopefully by the end of the day. The pitch of
the ball screws is UNK and the sizes vary.

I may have to transplant some code from the G0704's hal file that I 
used

to determine the spindle scale's there. One possibility anyway, as that
worked really well. Just comment it back out when done but left it that
way for possibly future use.

Probe the length of the ruler from a trysquare with a 1/8" tool, divide
that count by 97 (extra 1/8th for the tool dia), and * 96 and use that
for an axis scale.  That ought to give .001" per foot, provided the
ruler itself is accurate. A purely local std, if you've more than one,
probe them all and average the result. Quick and dirty, and likely as
accurate or better than a dial. And if counting steps, the answer is in
steps. Neat!

And that lack of a reverse is a bummer because I have for yonks, used a
low speed reverse when probing as it guarantees perfect probe
concentricity giving accuracy's well below .001" with any old contact 
in

the spindle. Doesn't, unless heavily oxidized alu the probe has to hit
hard enough to cut/punch thru, leave a mark on the work.  And thats an
ideal way to locate the work since its going to normally be mounted on
an insulating spoil board anyway on a machine like a 6040. Might have 
to

step up the probing voltage so it will punch a hole in the oxide better
when its only a micron away. The only provision for edge finding is 
that

you have to know the probes rad, completely unk when its a wobbly piece
of 10 ga copper sticking out of a teflon holder, so I don't edge find
with that on the g0704, but for locating a hole, it can't be beat. The
disadvantage of coarse is the tool change.

A bridge to be located, identified and crossed, when encountered.

Thank you Marius.  Once again, the conversation has shown me other
potential ways to skin this cat.  From that, I make progress.




It's a pleasure and good luck when you do get around to do it. Not so 
difficult after all.


 -- Original Message --
 From: "Gene Heskett" 
 To: emc-users@lists.sourceforge.net
 Sent: 2019-01-02 13:46:51
 Subject: [Emc-users] mach3(winderz) vs LCNC bob useage diffs

 >Greetings all, PCW in particular;
 >
 >Trying to sort a basket of rattlesnakes here. This computer has be

Re: [Emc-users] mach3(winderz) vs LCNC bob useage diffs

[Marius Liebenberg]

Gene
You can configure Mach3 to drive anything on any output pin. It is up to 
the creator of the machine and the BOB that is used.
You can dump the enable signals and hard wire them to be on all the 
time. The last thing you want is for the machine to have the steppers 
switched of and some axis moved.


Mach3 can drive 6 axis from the parallel port same as LCNC. It's a port 
limitation.


I have replaced the parport on some Mach machines with a 5i25 board with 
the right firmware used to simulate a parport. I cannot remember the 
name of the pin file but I will try and look for it.



-- Original Message --
From: "Gene Heskett" 
To: emc-users@lists.sourceforge.net
Sent: 2019-01-02 13:46:51
Subject: [Emc-users] mach3(winderz) vs LCNC bob useage diffs


Greetings all, PCW in particular;

Trying to sort a basket of rattlesnakes here. This computer has been
driving an HF micromill, thru the parport, using software stepping 
since

the early 2000's, thru a variety of actual motherboards.

It seems that mach3 at least, uses pins on a std parport that somewhat
resemble a game of 52 pickup. Scrambled would be the mixed audience
description.

Whereas all the stuff I've ever used, this being a linux only site, has
driven the x axis steppers from the db25 pins 2 and 3.

But  not mach3, where ack a doc I just found on cnczone:
pin1=XStep
Pin2=YEnable,
Pin3=YDir
Pin4=ZDir
Pin5=ZStep
Pin6=ZEnable
Pin7=XDir
pin8=YStep
pin9=spindle on/off relay on most bobs. Dir and speed apparently not
supported by mach3.  Shakes head in disbelief.
pin10=input1
pin11=input2
pin12=input3
pin13=input4
pin14=XEnable
pin15=not used in 3 axis setup, but I've a 4 axis machine.
pin16=expand output1
pin17=expand output2
pins18-25 grounded

Funny part, from the keyboard Y works both dirs, Z works both dirs
although I had to invert the scales in the .ini file. So I am not even
50% sure that is how THIS machine is wired.

PCW: Does the 5i25 have a firmware that can drive this mess?

Or am I doomed to rewire the electronics box that came with this beast 
to
make it into a std machine? In which case I'll just go get the box I 
was

driving the HF toy with, its already setup to drive 4 axis's. Thats
sounding like a better option all the time, but it needs more volts,
only 28 for the 2M542's in it. Needs 40+ volts to reach the speeds a
5i25 can drive it at. Uses the same  motor connector although I might
have to make pins match in the cabling. IIRC that will be a matter of
moving wires on the output terminal strip on that box. Since the 
2m542's

have been totally bulletproof, that might be the best idea. That leaves
the spindle control to deal with.

Its bob is different from any I've seen before.

Even if I expand p3 usage with a 7i76?

Thanks everybody.

Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 


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Re: [Emc-users] SPI

[Marius Liebenberg]

Andy, sofar I know the Master must pull the bus high with a pull-up 
resistor


-- Original Message --
From: "andy pugh" 
To: "Enhanced Machine Controller (EMC)" 


Sent: 2018-12-17 13:09:51
Subject: [Emc-users] SPI


Not as on-topic as I would like, but I suspect that some of you here
might know something useful.

I am trying to interface an ADS1256 board to an Arduino.
https://www.ebay.co.uk/itm/19242863594

Sometimes it almost works...
It will often sit there reading all-zeros then suddenly appear to
work, to an extent. But I don't seem to be able to configure it for
single-ended so suspect that the programming instructions are not
getting through.
The fact that the data output comes and goes makes me suspect that the
SPI comms is iffy.

The connection runs via the IO pins of an Arduino Nano,rather than
using the ICSP connector.

If I touch the ICSP connector on the Nano with my finger then the data
switches to 0xFF

So, I am wondering if the SPI bus needs to be terminated or something?

Also, the board has 100 Ohm resistors in series with all digital IO,
but the ADS1256 data sheet only shows 100R resisitors on the input
channels. Is this likely to be worth changing?

I have used other SPI devices with the Nano, and have not had these 
problems.
I have also tried with a full-size Arduino, with equally limited 
success.


Any tips for robustification of SPI comms?

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916


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Re: [Emc-users] Details change on forum

[Marius Liebenberg]

Hi Jeff
Andy already fixed it so you probably removed the fixed text.

-- Original Message --
From: "Jeff Epler" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2018-11-21 21:52:11
Subject: Re: [Emc-users] Details change on forum


I have been unable to determine why the signature setting is not
available for you to view or edit in your profile.

I have removed the signature text from your account on the forum.

Jeff

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Re: [Emc-users] Details change on forum

[Marius Liebenberg]

Done all that. I did read up on the forum software website that it is a 
setting that the administrator has to set in the CB module. Or something 
like that.

My info is outdated and I need to change it or delete it

-- Original Message --
From: "andy pugh" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2018-11-21 12:06:40
Subject: Re: [Emc-users] Details change on forum



On Wed, 21 Nov 2018 at 08:44, Marius Liebenberg  wrote:

>  Does anyone know how to change profile details on the forum.

Click on (for example) "Recent Topics" and the top menu expands to 
include "profile"


Then there is a box top-right which says "Edit"

That takes you to another page that has a drop-down top-left where you 
can select "Update your profile"


But none of the options there appears to relate to a signature. I 
suspect the forum just doesn't do signatures any more.


--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is 
designed for the especial use of mechanical geniuses, daredevils and 
lunatics."

— George Fitch, Atlanta Constitution Newspaper, 1916

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[Emc-users] Details change on forum

[Marius Liebenberg]

Hi
Does anyone know how to change profile details on the forum. 
Specifically the signature. It used to be there but has since 
disappeared.



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Re: [Emc-users] UPS on controller

[Marius Liebenberg]

The machine stops when the emergency button is pushed. The power to  the 
motors are cut and the programs stops at a line. The operator records 
that line (or at least I do ) and then the job can be run from there or 
the closest line that is not in a canned cycle or and incremental 
command.

Remember this is crisis recovery and not the norm.

-- Original Message --
From: "Thaddeus Waldner" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2018-11-20 18:50:26
Subject: Re: [Emc-users] UPS on controller

I’m intrigued by the “record the line number and then shut down” part. 
Is this something that the user would do manually after noticing that 
the power was cut or is this somehow automated?


 On Nov 20, 2018, at 10:10 AM, Marius Liebenberg 
 wrote:


 I agree with Andy. I put my controllers on a UPS and then have a 
signal that is wired through a drop-out relay that is also connected 
to the emergency stop switch. So when the power fails the machine is 
stopped and you can record line numbers at least and then shut down.


 -- Original Message --
 From: "andy pugh" 
 To: "Enhanced Machine Controller (EMC)" 


 Sent: 2018-11-20 17:14:59
 Subject: Re: [Emc-users] UPS on controller


 On Tue, 20 Nov 2018 at 15:10, Thaddeus Waldner  wrote:

  My question is, *should* a controller such as this have an 
uninterruptible power supply? If so, what parts of the machine are 
normally served by a UPS?


 I doubt that it is common to attempt to machine on standby power, 
but
 I can see good reasons to try to keep the controller alive to 
perform

 a controlled axis/spindle stop and graceful shutdown (including
 writing to the log files, tool-table etc)

 --
 atp
 "A motorcycle is a bicycle with a pandemonium attachment and is
 designed for the especial use of mechanical geniuses, daredevils and
 lunatics."
 — George Fitch, Atlanta Constitution Newspaper, 1916


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Re: [Emc-users] UPS on controller

[Marius Liebenberg]

I agree with Andy. I put my controllers on a UPS and then have a signal 
that is wired through a drop-out relay that is also connected to the 
emergency stop switch. So when the power fails the machine is stopped 
and you can record line numbers at least and then shut down.


-- Original Message --
From: "andy pugh" 
To: "Enhanced Machine Controller (EMC)" 


Sent: 2018-11-20 17:14:59
Subject: Re: [Emc-users] UPS on controller


On Tue, 20 Nov 2018 at 15:10, Thaddeus Waldner  wrote:

  My question is, *should* a controller such as this have an 
uninterruptible power supply? If so, what parts of the machine are 
normally served by a UPS?


I doubt that it is common to attempt to machine on standby power, but
I can see good reasons to try to keep the controller alive to perform
a controlled axis/spindle stop and graceful shutdown (including
writing to the log files, tool-table etc)

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916


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Re: [Emc-users] OT: motor usage

[Marius Liebenberg]

Either one toothed belt and two sets of (carefully chosen) pulleys or
two permanently-engaged toothed belts with a peg to engage the
high-speed ratio and an over-running clutch on the low-speed one:
That sounds interesting Andy. Please elaborate so my older mind can get 
the picture.




-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064

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Re: [Emc-users] Linuxcnc vs Mach3 for Plasma Cutter?

[Marius Liebenberg]

The machine "works", as in they've made a half dozen ugly test cuts.  
But they have not figured out how to make the THC work right and some 
other finer points of perfection still need fixing.  Things like 
squaring the gantry are currently done by grabbing the bridge and 
pulling it forward against the end stops before turning on the drives.


Many shitty machines are squared like that. If Mach is not licensed the 
THC stuff is not functional at all.




Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Dave Cole 
Sent: Tuesday, August 14, 2018 5:03 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Linuxcnc vs Mach3 for Plasma Cutter?

Mach3 is now pretty old.
Is there a legit license installed with the software?
Oftentimes machines were shipped with a demo license only. (limited 
Gcode support)


CandCNC used to sell a lot of Mach3 software with their systems.
Go look at their site now.

If it works... why change it?  Chances are that the torch height 
control won't work with LinuxCNC.


Dave

On 8/14/2018 4:11 PM, Todd Zuercher wrote:
 I don’t want to start a big Mach bashing.  I just want to hear some 
opinions from those who have set up a simple CNC plasma machine with 
both Mach and Linuxcnc.


 Are there any inherent advantages/disadvantages of one over the other 
for a plasma cutter?


 Here where I work they just purchased a cheap plasma table kit and
 they are setting it up with Mach3.  (they being not me.) My self, 
having zero experience with Mach3, probably would not have bothered 
trying to even install Mach.
 The machine is a simple stepper gantry using a Gecko 540 driver pack 
and I think there is some form of THC contraption as well, but I have 
no details.


 The two people setting it up know next to nothing about Mach3 or CNC, 
and even less about Linuxcnc (hence their choice to go with the Mach3 
setup.)  My guess is that they are just following the instructions 
that came with the kit.


 Unfortunately I am too busy at my end of the shop to offer them a 
whole lot of assistance, and since I know nothing about the plasma 
side of cnc...


 However I have threatened to come down to their end of the shop and
 install LinuxCNC on it while they are not looking😊

 Todd Zuercher
 P. Graham Dunn Inc.
 630 Henry Street
 Dalton, Ohio 44618
 Phone:  (330)828-2105ext. 2031

 
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Re: [Emc-users] Linuxcnc vs Mach3 for Plasma Cutter?

[Marius Liebenberg]

I have done many plasma machines over the years and I found that if the 
customer is not capable of his own software or has no understanding of 
LinuxCnc, then I just install Mach3.

Mach works very well for plasma.

Actually, a customer that is capable of fiddling the software is 
normally your worst nightmare and that is one big reason I install Mach 
and then remove the menus once done.



-- Original Message --
From: "Todd Zuercher" 
To: "Enhanced Machine Controller (EMC)" 


Sent: 2018-08-14 22:11:30
Subject: [Emc-users] Linuxcnc vs Mach3 for Plasma Cutter?

I don’t want to start a big Mach bashing.  I just want to hear some 
opinions from those who have set up a simple CNC plasma machine with 
both Mach and Linuxcnc.


Are there any inherent advantages/disadvantages of one over the other 
for a plasma cutter?


Here where I work they just purchased a cheap plasma table kit and they 
are setting it up with Mach3.  (they being not me.)
My self, having zero experience with Mach3, probably would not have 
bothered trying to even install Mach.
The machine is a simple stepper gantry using a Gecko 540 driver pack 
and I think there is some form of THC contraption as well, but I have 
no details.


The two people setting it up know next to nothing about Mach3 or CNC, 
and even less about Linuxcnc (hence their choice to go with the Mach3 
setup.)  My guess is that they are just following the instructions that 
came with the kit.


Unfortunately I am too busy at my end of the shop to offer them a whole 
lot of assistance, and since I know nothing about the plasma side of 
cnc...


However I have threatened to come down to their end of the shop and 
install LinuxCNC on it while they are not looking😊


Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

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Re: [Emc-users] One servo system

[Marius Liebenberg]

Chris
I would like to run Linuxcnc but headless so the PocketBeagle will be 
great for that. I dont really need the network connection as the system 
will run a couple of simple commands that can be activated from buttons. 
My brief required a simple operators interface so it's buttons only.


-- Original Message --
From: "Chris Albertson" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2018-04-05 18:54:35
Subject: Re: [Emc-users] One servo system


The comment to use psocketbeagle and MK if Linux is required is good.
I just looked up psocketbeagle and I don't see any network interface.
 Likely if you want a Linux based controller it is so you can access
it remotely. You might get a USB/Wifi dongle to work but it would
be better to buy a board with built-in networking if networking is
important.   But the pocket beagle could always use a serial line for
networking if all you need is a text window and a few file transfers.

If you don't need Linix then it can be much simpler (An Arduino would
work) but remote access is a very nice feature to have.  Nice enough
that I'd go with a card that has built in wifi.

On Thu, Apr 5, 2018 at 6:32 AM, Marius Liebenberg
 wrote:

 Hi Alexander
 I decided that this is the way to go. I did see that there is some 
talk that

 not all kernels are supported on the board.
 Is there a place where I can go look to see how to get this board 
setup with

 MachineKit please?

 -- Original Message --
 From: "Alexander Rössler" 
 To: "Marius Liebenberg" 
 Sent: 2018-04-04 13:37:56
 Subject: Re: [Emc-users] One servo system

 I think a simple real-time component should also do the trick in 
case
 the ladder logic component (it's also RT right?) does not work for 
your

 application.

 The PocketBeagle also has a PRU like the BeagleBone, so step 
generation

 or encoder feedback should be fine.

 --
 Alexander

 Marius Liebenberg writes:

  I just looked at the PocketBeagle and it seems to be a good choice 
for

  servo or stepper.
  It will have to be headless so I would imagine that I will be 
using

  ladder to control the system with.

  The track length is 6m, a button is pressed and I accelerate to 
8m/s and

  stop at the other end waiting for a command to do the same in the
  opposite direction. Machine must home in the one axis on demand as 
well.


  Would the ladder logic route be good enough or are there some 
other

  suggestions?


  -- Original Message --
  From: "Alexander Rössler" 
  To: "Enhanced Machine Controller (EMC)"
  
  Cc: "Marius Liebenberg" 
  Sent: 2018-04-04 09:24:43
  Subject: Re: [Emc-users] One servo system


 Machinekit + PocketBeagle is good combo if you are looking for
 something
 running Linux.

 Chris Albertson writes:

   Of course.   Write a PID based control loop and put it an 
something
   like an Arduino.  I've done this a few times the control the 
wheels

 of
   a mobile robot.

   The details depend on the interfaces to botkhthe motoring the 
higher

   level control


   As for higher level control...  Is it a human using a joystick 
or

 some
   kind of automation that does the same thing repetivity  or must 
the
   device interact with the environment some how.  Perhaps opening 
a for

   as a person approaches.

   Then I have to ask what kind of hardware driver you have.   
Some

   drivers do most of the work for you.  These might take a
   step/direction pulse, r have an analog input.  But other 
drivers are
   just an H-Bridge and raw encoder signals.This is the kind 
of
   serves I use.   I end u using a small micro controler (Arduino 
or

   ARM-M) and relaying on a PID library.

   In ant case most of your effort will be spent in the interfaces 
not
   the actual PID control loop as that is just a few calls to a 
PID

   library

   On Wed, Mar 28, 2018 at 8:15 AM, Marius Liebenberg
wrote:


   Hi all
   I have to put together a system that will use one servo to 
drive a

 small
   platform over a distance of 6m at a speed of about 25km/h or 
8m/s or

 there
   about.

   I feel that using a full computer and mesa card for just one 
axis

 that does
   not need a display sounds a bit excessive. The question is 
what are

 the
   other options if any.



   -
   Regards / Groete

   Marius D. Liebenberg
   +27 82 698 3251
   +27 12 743 6064


 
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 --
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 HMI Expert at Rössler Systems
 Tel: +43 680 1348338
 Web: https://roessler.syste

Re: [Emc-users] One servo system

[Marius Liebenberg]

Hi Alexander
I decided that this is the way to go. I did see that there is some talk 
that not all kernels are supported on the board.
Is there a place where I can go look to see how to get this board setup 
with MachineKit please?


-- Original Message --
From: "Alexander Rössler" 
To: "Marius Liebenberg" 
Sent: 2018-04-04 13:37:56
Subject: Re: [Emc-users] One servo system


I think a simple real-time component should also do the trick in case
the ladder logic component (it's also RT right?) does not work for your
application.

The PocketBeagle also has a PRU like the BeagleBone, so step generation
or encoder feedback should be fine.

--
Alexander

Marius Liebenberg writes:

 I just looked at the PocketBeagle and it seems to be a good choice 
for

 servo or stepper.
 It will have to be headless so I would imagine that I will be using
 ladder to control the system with.

 The track length is 6m, a button is pressed and I accelerate to 8m/s 
and

 stop at the other end waiting for a command to do the same in the
 opposite direction. Machine must home in the one axis on demand as 
well.


 Would the ladder logic route be good enough or are there some other
 suggestions?


 -- Original Message --
 From: "Alexander Rössler" 
 To: "Enhanced Machine Controller (EMC)"
 
 Cc: "Marius Liebenberg" 
 Sent: 2018-04-04 09:24:43
 Subject: Re: [Emc-users] One servo system


Machinekit + PocketBeagle is good combo if you are looking for
something
running Linux.

Chris Albertson writes:

  Of course.   Write a PID based control loop and put it an 
something
  like an Arduino.  I've done this a few times the control the 
wheels

of
  a mobile robot.

  The details depend on the interfaces to botkhthe motoring the 
higher

  level control


  As for higher level control...  Is it a human using a joystick or
some
  kind of automation that does the same thing repetivity  or must 
the
  device interact with the environment some how.  Perhaps opening a 
for

  as a person approaches.

  Then I have to ask what kind of hardware driver you have.   Some
  drivers do most of the work for you.  These might take a
  step/direction pulse, r have an analog input.  But other drivers 
are

  just an H-Bridge and raw encoder signals.This is the kind of
  serves I use.   I end u using a small micro controler (Arduino or
  ARM-M) and relaying on a PID library.

  In ant case most of your effort will be spent in the interfaces 
not

  the actual PID control loop as that is just a few calls to a PID
  library

  On Wed, Mar 28, 2018 at 8:15 AM, Marius Liebenberg
   wrote:

  Hi all
  I have to put together a system that will use one servo to drive 
a

small
  platform over a distance of 6m at a speed of about 25km/h or 8m/s 
or

there
  about.

  I feel that using a full computer and mesa card for just one axis
that does
  not need a display sounds a bit excessive. The question is what 
are

the
  other options if any.



  -
  Regards / Groete

  Marius D. Liebenberg
  +27 82 698 3251
  +27 12 743 6064

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--
Alexander Rössler
HMI Expert at Rössler Systems
Tel: +43 680 1348338
Web: https://roessler.systems
Blog: https://machinekoder.com
alexander@roessler.systems
Lebnergasse 1/7/7
1210 Wien - Austria
ATU72251528



--
Alexander Rössler
HMI Expert at Rössler Systems
Tel: +43 680 1348338
Web: https://roessler.systems
Blog: https://machinekoder.com
alexander@roessler.systems
Lebnergasse 1/7/7
1210 Wien - Austria
ATU72251528

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Re: [Emc-users] One servo system

[Marius Liebenberg]

I just looked at the PocketBeagle and it seems to be a good choice for 
servo or stepper.
It will have to be headless so I would imagine that I will be using 
ladder to control the system with.


The track length is 6m, a button is pressed and I accelerate to 8m/s and 
stop at the other end waiting for a command to do the same in the 
opposite direction. Machine must home in the one axis on demand as well.


Would the ladder logic route be good enough or are there some other 
suggestions?


-- Original Message --
From: "Alexander Rössler" 
To: "Enhanced Machine Controller (EMC)" 


Cc: "Marius Liebenberg" 
Sent: 2018-04-04 09:24:43
Subject: Re: [Emc-users] One servo system

Machinekit + PocketBeagle is good combo if you are looking for 
something

running Linux.

Chris Albertson writes:


 Of course.   Write a PID based control loop and put it an something
 like an Arduino.  I've done this a few times the control the wheels 
of

 a mobile robot.

 The details depend on the interfaces to botkhthe motoring the higher
 level control


 As for higher level control...  Is it a human using a joystick or 
some

 kind of automation that does the same thing repetivity  or must the
 device interact with the environment some how.  Perhaps opening a for
 as a person approaches.

 Then I have to ask what kind of hardware driver you have.   Some
 drivers do most of the work for you.  These might take a
 step/direction pulse, r have an analog input.  But other drivers are
 just an H-Bridge and raw encoder signals.This is the kind of
 serves I use.   I end u using a small micro controler (Arduino or
 ARM-M) and relaying on a PID library.

 In ant case most of your effort will be spent in the interfaces not
 the actual PID control loop as that is just a few calls to a PID
 library

 On Wed, Mar 28, 2018 at 8:15 AM, Marius Liebenberg
  wrote:

 Hi all
 I have to put together a system that will use one servo to drive a 
small
 platform over a distance of 6m at a speed of about 25km/h or 8m/s or 
there

 about.

 I feel that using a full computer and mesa card for just one axis 
that does
 not need a display sounds a bit excessive. The question is what are 
the

 other options if any.



 -----
 Regards / Groete

 Marius D. Liebenberg
 +27 82 698 3251
 +27 12 743 6064
 
--

 Check out the vibrant tech community on one of the world's most
 engaging tech sites, Slashdot.org! http://sdm.link/slashdot
 ___
 Emc-users mailing list
 Emc-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/emc-users



--
Alexander Rössler
HMI Expert at Rössler Systems
Tel: +43 680 1348338
Web: https://roessler.systems
Blog: https://machinekoder.com
alexander@roessler.systems
Lebnergasse 1/7/7
1210 Wien - Austria
ATU72251528

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Re: [Emc-users] What RPM

[Marius Liebenberg]

There's a saying "It is not over until the fat lady sings"  now for us 
here it reads "It's not over until Andy has chipped in his bit". Just to 
keep us all on our toes and in line. Thanks Andy, very useful 
information and it just serves to make one feel confident from the start 
that you are not wasting your money on another failed attempt at 
building a special machine.



-- Original Message --
From: "andy pugh" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2018-04-02 21:44:36
Subject: Re: [Emc-users] What RPM

On 2 April 2018 at 15:23, Marius Liebenberg  
wrote:


 The spindle in the picture is what is currently fitted to the machine 
and I
 would like to refurbish and use it. The question I have is what RPM 
will I

 be able to run the spindle seeing that it uses these brass bearings?


My Rivett lathe is good for 1600rpm and has similar bearings. Your
bearings look smaller, and therefore can go faster.

The internet says:
 "Depending on material max shaft speed 1.25 to 5m/s
(non leaded bronzes, up to approx 2.5m/s)"

If the shaft is 25mm dia then 2.5m/s = 31 rps = 1900rpm.

(the extremes give 950 to 3800 rpm.)

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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Re: [Emc-users] What RPM

[Marius Liebenberg]

Probably about 25mm shaft. So as I need 1000 to 1500 RPM for the 
plastics it seems doable then.


-- Original Message --
From: "Ed" 
To: emc-users@lists.sourceforge.net
Sent: 2018-04-02 16:58:56
Subject: Re: [Emc-users] What RPM


On 04/02/2018 09:23 AM, Marius Liebenberg wrote:

Hi
I have had this piece of machine in the store for a long time. I think 
it was used to decant fishing line to the smaller plastic reels.
I have a need for a small dedicated lathe that will onpy cut soft 
materials like plastic and aluminium occasionally.
The spindle in the picture is what is currently fitted to the machine 
and I would like to refurbish and use it. The question I have is what 
RPM will I be able to run the spindle seeing that it uses these brass 
bearings?
Depending on diameter, I would treat it like an old lathe with bronze 
bearings. 1000 RPM should be no problem with adequate oil lube.


Ed.


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Re: [Emc-users] What RPM

[Marius Liebenberg]

Gene it is sitting fully submerged and that groove is on the top half of 
the bearing so it should have a lot of oil on the bearing surface.


I dont need more than 1000 or 1500 RPM for the plastics.

-- Original Message --
From: "Gene Heskett" 
To: emc-users@lists.sourceforge.net
Sent: 2018-04-02 17:33:21
Subject: Re: [Emc-users] What RPM


On Monday 02 April 2018 10:23:33 Marius Liebenberg wrote:


 Hi
 I have had this piece of machine in the store for a long time. I 
think

 it was used to decant fishing line to the smaller plastic reels.
 I have a need for a small dedicated lathe that will onpy cut soft
 materials like plastic and aluminium occasionally.
 The spindle in the picture is what is currently fitted to the machine
 and I would like to refurbish and use it. The question I have is what
 RPM will I be able to run the spindle seeing that it uses these brass
 bearings?


I am seeing an unusual lube distribution system in those bushings. Is
there a lube pump and reservoir associated? Something that would assure
a continuous flow of lube into the end grooves and thence lengthwise
thru the groove I can see running lengthwise in the left half of each?
With such a system running, and delivering a 1/2 cup of clean 0 to 5w
oil a minute, I could see it spinning 30k revs. The rev limit would be
how much heat the viscosity of the oil used was caused to be generated.
Monitor with an IR thermometer. Personally, the oil will start to fail
at around 300F, so seeing 150F on the bushing holder would make me slow
it down.

If nothing of that sort of circulating lubricant exists, and its equipt
with flip cap oilers, then some 30-50w oil to try and hold the
hydrodynamic film, refreshed hourly might allow 2500 revs, depending on
the load and any imbalance that might exist. Because the hydrodynamic
forces are rpm dependent, there is of course a minimum speed that 
should

be maintained when its carrying any lateral load.

I get the impression that what little evidence of wear I see was caused
by this minimum speed being violated, probably at startup and shutdown
times.  The small cross-section of the shaft will allow some flexure
under load which may have overpowered the hydrodynamics, allowing some
metal to metal contact, and that might have worn the bushings a bit
bell-mouthed. With sharp tooling and copious coolant, it should do
plastics and alu at decent cutting speeds just fine. Add the forced 
lube
and 10k+ rpms should be doable. Watch it with an IR thermometer, and 
let

it tell you when it needs forced lube.


 -
 Regards / Groete

 Marius D. Liebenberg
 +27 82 698 3251
 +27 12 743 6064


--
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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Re: [Emc-users] What RPM

[Marius Liebenberg]

It looks like the bearings were submerged in oil on the the machine as 
both are sitting in a sump with oil drain each. The top bearing has  
large feed groove for the oil. That will only work if submerged.


-- Original Message --
From: "jeremy youngs" 
To: "Enhanced Machine Controller (EMC)" 


Sent: 2018-04-02 17:13:17
Subject: Re: [Emc-users] What RPM


600 continuously and 1000 for short periods with light load. You should
also get wick style oilers for it
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[Emc-users] One servo system

[Marius Liebenberg]

Hi all
I have to put together a system that will use one servo to drive a small 
platform over a distance of 6m at a speed of about 25km/h or 8m/s or 
there about.


I feel that using a full computer and mesa card for just one axis that 
does not need a display sounds a bit excessive. The question is what are 
the other options if any.




-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
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Re: [Emc-users] How to setup a system for Uspace

[Marius Liebenberg]

-- Original Message --
From: "andy pugh" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2017-11-28 12:11:59
Subject: Re: [Emc-users] How to setup a system for Uspace

On 28 November 2017 at 07:01, Marius Liebenberg 
 wrote:



 Someone suggested that I use the latest live CD image from here
 
(http://www.linuxcnc.org/testing-stretch-rtpreempt/linuxcnc-stretch-uspace-amd64-r9.iso)
 This I did only to discover that they used an old version of Gmoccapy 
on
 this distribution which naturally will fail as it does not include 
the fixes

 that the author done on later versions.


Once you have the system set up it should be easy to update LinuxCNC
from the Synaptic Package Manager.

But, I would expect that image to install LinuxCNC 2.7.11 anyway. What
makes you think that there are problems with Gmoccapy?
(If there are, then that should be driving another bug-fix release)

These bugs are fixed already in the latest release of Gmoccapy but the 
version of Gmoccapy that was included in the build is very old (version 
1.5.8) and we now stand at version 2.x.x already.


I concurred with Nortbert on this.



--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916


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[Emc-users] How to setup a system for Uspace

[Marius Liebenberg]

Hi

I have been having a hard time getting a system setup to run uspace in 
order to use the mesa 7i76.
I installed a fresh Debian 9 on a machine. Then I installed the RT 
kernel as suggested here 
(http://linuxcnc.org/docs/html/getting-started/getting-linuxcnc.html)
This seemed to work fine but the PC was old and could not handle the 
latency. Someone suggested that I use the latest live CD image from here 
(http://www.linuxcnc.org/testing-stretch-rtpreempt/linuxcnc-stretch-uspace-amd64-r9.iso) 
This I did only to discover that they used an old version of Gmoccapy on 
this distribution which naturally will fail as it does not include the 
fixes that the author done on later versions.


I have spent forty hours already on a job that I quoted 10 hours on and 
still I dont have a working system. I beginning to feel that the sanity 
of linuxcnc is slowly slipping away to be left with something that only 
guru developers will be able to use and setup in the future.


What is the the best way to get a uspace system installed in order for 
me to use the mesa 7i76e products on? Please share some of your 
experiences and methods with the lowly populous.




-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064


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Re: [Emc-users] Path Pilot on LinuxCNC -- Was MachineKit on the BeagleBone Black

[Marius Liebenberg]

Not sure what the conditions are but I dont remember any restrictions.
Please PM me for the link.

-- Original Message --
From: "Chris Albertson" 
To: "Marius Liebenberg" ; "Enhanced Machine 
Controller (EMC)" 

Sent: 2017-10-13 20:52:23
Subject: Re: [Emc-users] Path Pilot on LinuxCNC -- Was MachineKit on the 
BeagleBone Black


I assume it is redistributable.  Can you place the data some place 
where others can see it?


On Fri, Oct 13, 2017 at 4:30 AM, Marius Liebenberg 
 wrote:
I have a source code CD that I paid $10 for to cover shipping and 
other costs.



 Tormach says they don't support path pilot on 3rd party equipment.   
It

 likely
 depends on specialized hardware so it would not run without 
modification

 and I don't think they have source code available.



As a derivative of a GPL licensed project I thought that they would 
be

required to make the source available.
Has anybody asked for the source to see what they say? The little I 
have

dealt with them they
always seemed very forthcoming with information and to be straight 
forward

and honest folks.

Cheers,
Kurt
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Redondo Beach, California

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Re: [Emc-users] Path Pilot on LinuxCNC -- Was MachineKit on the BeagleBone Black

[Marius Liebenberg]

I have a source code CD that I paid $10 for to cover shipping and other 
costs.



 Tormach says they don't support path pilot on 3rd party equipment.   It

 likely
 depends on specialized hardware so it would not run without 
modification

 and I don't think they have source code available.



As a derivative of a GPL licensed project I thought that they would be
required to make the source available.
Has anybody asked for the source to see what they say? The little I 
have

dealt with them they
always seemed very forthcoming with information and to be straight 
forward

and honest folks.

Cheers,
Kurt
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Re: [Emc-users] Mesa RS-422 examples

[Marius Liebenberg]

 On 11 September 2017 at 04:44, Marius Liebenberg 
 wrote:



 I Is there anyone out there that
 has some examples that I can look at to get started please?
 Or some advise will do as well thanks.


Take a look at:
https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/drivers/mesa_uart.comp


That will work almost as is. I only have a few fixed bytes per packet to 
send and receive. I can the do a component that will handle the GUI 
stuff from and to the packet.


--
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"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916


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Re: [Emc-users] Mesa RS-422 examples

[Marius Liebenberg]

 Thanks Eric. I assumed that it would be a packet protocol. I just did a
packet radio link on a SAMD21. Those are many as you said.
I was more looking for HAL side of things or a python script that make
use of the RS-422 of the mesa. More the system integration side of
things I think.

-- Original Message --
From: "Erik Christiansen" 
To: emc-users@lists.sourceforge.net
Sent: 2017-09-11 14:40:15
Subject: Re: [Emc-users] Mesa RS-422 examples


TL;DR: Potted solutions are at the end.

On 11.09.17 11:44, Marius Liebenberg wrote:

 Hi
 I need to write a custom RS-422 protocol to control a plasma cutter.
I have
 a mesa 7i44 (amongst other's ) on the system.
 I have never used or seen any examples of how to communicate to
custom
 hardware vie the RS-422 on the mesa cards. Is there anyone out there
that
 has some examples that I can look at to get started please?
 Or some advise will do as well thanks.


There will be some simple serial packet protocol or other out there in
the googleverse, but the fundamentals are:

+  It's a serial packet protocol, and whether it's RS485,RS422, or
RS232
   on the physical layer doesn't amount to a hill of beans, except that
   RS422 tells us that it's point-to-point, so destination addresses
   aren't really needed.

+  Writing packet assembly code is simple - it's stacking bytes in a
   buffer. The packet parser at the receiving end is a little bit more
   work, which you might like to re-use on a subsequent project - so
   maybe add source and destination address bytes to the packet, even
if
   you just dump them on receipt, at this stage.

+  So a simple packet would look something like this sequence of bytes:
   A recognisable header byte, i.e. a constant, e.g. 0x47 = 'G'
   Destination address. 0 - 255
   Source address. 0 - 255
   Length If this is included, you have the option of variable
  length packets. The count need only cover the
variable
  payload.
   Payload bytes.
   ...
   How many do you need to tell a plasma cutter how to dance?
   CRC or simple checksum byte.

The packet parser is a state machine which ignores anything received
until a header is seen, then advances statewise as packet bytes are
parsed. It's a really good idea to checksum each received packet, and
request a resend if it is corrupted. That's Transport Layer logic.

Packet queues at Tx and Rx ends are needed, unless backward ACK/NACK is
used to stop Tx if Rx isn't ready. If the plasma cutter can do only one
thing at the time, that might do for starters.

DIY can be weeks of work before it's reasonably capable and reliable,
so
let's now run "AVR embedded packet protocol" up the flagpole. Ah, the
second hit is: https://en.wikipedia.org/wiki/Cubesat_Space_Protocol
and it's good to go on 8 bit AVR and 32 bit ARM chips (whoops, is that
my bias showing? That's what I'd put on the Rx end.)

It's written in 'C', so nicely portable, and runs in a number of POSIX
environments, including FreeRTOS and Linux. So it's compatible with a
LinuxCNC host and an embedded slave. It might be worth a look.

Modbus will be suggested. I've not used it. It would be significant
overkill, but if there is free source to be had, then you'll not need
more than that to talk to a plasma cutter. Trying "modbus beaglebone
linux" gives enough hits to suggest that it would be feasible to drop a
beaglebone in on the Rx end, drop the code in, and maybe have it up in
an afternoon.

Erik

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[Emc-users] Mesa RS-422 examples

[Marius Liebenberg]

Hi
I need to write a custom RS-422 protocol to control a plasma cutter. I 
have a mesa 7i44 (amongst other's ) on the system.
I have never used or seen any examples of how to communicate to custom 
hardware vie the RS-422 on the mesa cards. Is there anyone out there 
that has some examples that I can look at to get started please?

Or some advise will do as well thanks.


-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064


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Re: [Emc-users] (no subject)

[Marius Liebenberg]

Hi Johan

You will have to provide a bit more detail in order to get assistance.
Please explain what you mean by "does not hold size at all"
Explain how:
1) you discovered the problem and
2) how you measured the result and
3) what you done to solve it thus far.

Also give details on the controller version and GUI that you use.

-- Original Message --
From: "Johann Beukes" 
To: emc-users@lists.sourceforge.net
Sent: 2017-08-28 06:12:00
Subject: [Emc-users] (no subject)


Hi guys
I am struggeling alot with my lathe X axis. The machine does not hold 
size
at all. I am using The Leadshine ESM-22430 motor and the DS808 drive. 
The

Dirsetup is set at 2500, Dirhold 2500, Steplen 5000, Stepspace 5000 and
stepscale at -322. The ballscrew has a 2.5mm pitch and the steps per 
rev

are set at 800.
Can anybody please give me some advice?
Thanks
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Re: [Emc-users] Servo - Velocity or Position mode

[Marius Liebenberg]

I would go with analog. It is much easier to tune using Halscope than 
trying to tune the drives by ear or relying on auto tuning which in my 
experience doesn't work very well. Additionally if you get drive faults 
due to following errors it is much harder to figure out what is going 
on. With LinuxCNC handling the PID loop you can use Halscope to see 
exactly what is going on. Being able to actually see what is going on 
is so useful when trying to track down problems.


About a year ago I retrofitted a router with pulse controlled brushless 
servos, using Eding CNC instead of LinuxCNC. I spent ages on that 
machine tracking down intermittent following error trips. As it turned 
out the problem was actually a bug in Eding CNC but even then, if I had 
access to tools like Halscope I would have found the problem within 
hours rather than weeks. Unfortunately the customer did not want 
anything to do with Linux.


That is sad. Linux is not a dark art anymore. I looked at the data sheet 
carefully and I agree with you about using the analog system. The 
machine does not have a Z axis so I have to fit one. Getting servos over 
here is not that easy so I initially thought to go the pulse route. I 
suppose a small servo and drive would not be to hard to find on eBay.




Les


Hi

I have to upgrade and convert an old machine that was used to cut with
gas. It uses some Panasonic MCDHT3520 servo drives.
These drives has a pulsed input for position and an analog +- 10v 
input

for velocity mode.
The question is what mode is better to use with LCNC and Mesa cards,
velocity or position?

I will use one of the Ethernet solutions from Mesa with a panel PC.

-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064





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[Emc-users] Servo - Velocity or Position mode

[Marius Liebenberg]

Hi

I have to upgrade and convert an old machine that was used to cut with 
gas. It uses some Panasonic MCDHT3520 servo drives.
These drives has a pulsed input for position and an analog +- 10v input 
for velocity mode.
The question is what mode is better to use with LCNC and Mesa cards, 
velocity or position?


I will use one of the Ethernet solutions from Mesa with a panel PC.

-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064



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Re: [Emc-users] Drive options with 7i76

[Marius Liebenberg]

 On 16 July 2017 at 14:33, Gene Heskett  wrote:



 Is there a clever way to drive this with with 7i76.


Possibly with a DC boost converter. Do you have 10V anywhere else?


No not at all. I was wondering if I could use a voltage divider to bring 
the 24v down to 12v at least as the 7i76 spindle drive will work up to 
15v.

The 7i76 spindle drive emulates a pot that can handle up to 15v


--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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[Emc-users] Drive options with 7i76

[Marius Liebenberg]

Hi

I have to replace my lathe drive and the one I have does not have a 10v
source for the 7i76 card produce the 0 - 10v signal.


Is there a clever way to drive this with with 7i76.



-
Regards / Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064


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Re: [Emc-users] Had to re-flash Mesa 7i77 twice

[Marius Alksnys]

Sorry, latest news: the same happens with other 7i77.

05/29/2017 10:15 AM, Marius Alksnys rašė:

Peter, can you repair or help me to repair this 7i77 board? Maybe I
could diagnose more or let you connect to the system remotely.
I also can replace PCB components like PIC...

I issued a RMA request on store.mesanet.com (never met RMA term and
process before), but did not get clear answer.


05/16/2017 09:35 PM, Peter C. Wallace rašė:

On Tue, 16 May 2017, Marius Alksnys wrote:


Date: Tue, 16 May 2017 21:02:29 +0200
From: Marius Alksnys 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Had to re-flash Mesa 7i77 twice

We replaced 7i77 with a spare one and the machine is working without a

glitch for two weeks.


The encoder quadrature error still suggests a PCI error of some kind



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Re: [Emc-users] Had to re-flash Mesa 7i77 twice

[Marius Alksnys]

Peter, can you repair or help me to repair this 7i77 board? Maybe I 
could diagnose more or let you connect to the system remotely.

I also can replace PCB components like PIC...

I issued a RMA request on store.mesanet.com (never met RMA term and 
process before), but did not get clear answer.



05/16/2017 09:35 PM, Peter C. Wallace rašė:

On Tue, 16 May 2017, Marius Alksnys wrote:


Date: Tue, 16 May 2017 21:02:29 +0200
From: Marius Alksnys 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Had to re-flash Mesa 7i77 twice

We replaced 7i77 with a spare one and the machine is working without a

glitch for two weeks.


The encoder quadrature error still suggests a PCI error of some kind



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Re: [Emc-users] Had to re-flash Mesa 7i77 twice

[Marius Alksnys]

We replaced 7i77 with a spare one and the machine is working without a 
glitch for two weeks.

04/24/2017 06:17 PM, Peter C. Wallace rašė:
>
> This is most likely to be a PCI issue
>
> (those errors are what you would get if the 5I25 card suddenly disappeared and
> you read all FFs from the registers, no real way to get all those errors from
> the sserial link, and note the joint following error and encoder quadrature
> error)
>


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