Re: [Emc-users] EMC a digital pantograph milling machine?

[Michael Haberler]

- is the stream of xyz values in the order you would use it for cutting?
- what about relative speeds?
- is it ok to generate a ngc file from the digitiser stream and executed that 
eventually, or do you need to do this in paralllel?

-m

Am 25.11.2011 um 22:01 schrieb Florian Rist:

> Hi,
> I wonder if it would be possible to extend EMC in a way that I could ad 
> a 3D digitiser as an input device and control the position of a 3aces 
> CNC mill live via that digitiser so that I could use the CNC mill just 
> like a digital pantograph milling machine.
> 
> The digitiser, a Immersion Microscribe II, gives me a stream of xyz 
> coordinates, either via USB or a serial RS-232 interface. I guess the 
> serial connection is much easier to use and probably fast enough, too.
> 
> My problem is that I have no clue how I might be able to feed these 
> coordinate into EMC, to make EMC move according to these coordinates.
> 
> I haven't done any development vor EMC yet, except some minor extensions 
> to trivkins, to compensate some errors on my machine. How could I link 
> the digitise and EMC?
> 
> I hope you can give me some ideas,
> see you
> Flo
> 
> 
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Re: [Emc-users] live backplot clear from G code?

[Steve Blackmore]

On Fri, 25 Nov 2011 22:08:36 +, you wrote:

>On 25 November 2011 21:55, andy pugh  wrote:
>
>> However, I just tried the command and got "X server insecure (must use
>> xauth-style authorization); command ignored" so I am not sure if it
>> works or not (this was in a VM, so might well be non-typical)
>
>OK, just tried it on a real machine, and it worked fine.
>
>So, in the directory referenced by PROGRAM_PREFIX in your INI file,
>(probably home/emc2/nc_files) create a text file containing the
>following lines.
>
>#!/bin/sh
>axis-remote --clear
>exit 0
>
>Then save that file with the filename "M101" (no suffix)
>Then give that file "execute" properties (in the file browser,
>right-click, properties, permissions flag, tick the "execute" tickbox)
>You probably need to restart EMC2 if it is open.
>
>Then, any time your Gcode contains M101, that file will be called, and
>will clear the screen.
>I checked it, and it worked.

Thanks Andy - this was requested ages ago and ignored until now.

Will test it later - got some parts to make today.

Invaluable when running multiple parts in turn, you can then see where
it's supposed to be at rather than trying to guess through the coolant
;)

Steve Blackmore
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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/25 Peter C. Wallace :
>
> Can you unplug any daughterboard connectors on the 7I43 and launch one of
> EMCs sample configs just to see if this is software or hardware related?

I removed connectors from P3 and P4 ports on 7i43 and tried
hm2-stepper/7i43-big sample config.
I received error.

2011/11/25 Jon Elson :
> You could try using my pcisetup program

Sorry, Jon, it did not work.
What I did:
Downloaded tar.gz file, unpacked and ran it according to Your instructions.
Then in the same terminal window I ran emc and chose
hm2-stepper/7i43-big sample config.
I got the same error.
If that matters, I pasted it here:
http://pastebin.com/hcynzdEb

So it seems that the problem is in hardware.
I will now try attaching the card and hdd to another (older)
motherboard and see, if the problem is in 7i43 card or in motherboard.

Viesturs

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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Viesturs Lācis :
>
> I will now try attaching the card and hdd to another (older)
> motherboard and see, if the problem is in 7i43 card or in motherboard.

Still the same error in different PC.
WTF is wrong with that card?

Viesturs

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Re: [Emc-users] PID & BLDC

[gene heskett]

On Saturday, November 26, 2011 09:31:22 AM Viesturs Lācis did opine:

> 2011/11/25 Peter C. Wallace :
> > Can you unplug any daughterboard connectors on the 7I43 and launch one
> > of EMCs sample configs just to see if this is software or hardware
> > related?
> 
> I removed connectors from P3 and P4 ports on 7i43 and tried
> hm2-stepper/7i43-big sample config.
> I received error.
> 
> 2011/11/25 Jon Elson :
> > You could try using my pcisetup program
> 
> Sorry, Jon, it did not work.
> What I did:
> Downloaded tar.gz file, unpacked and ran it according to Your
> instructions. Then in the same terminal window I ran emc and chose
> hm2-stepper/7i43-big sample config.
> I got the same error.
> If that matters, I pasted it here:
> http://pastebin.com/hcynzdEb
> 
> So it seems that the problem is in hardware.
> I will now try attaching the card and hdd to another (older)
> motherboard and see, if the problem is in 7i43 card or in motherboard.
> 
> Viesturs

It is a firmware problem.  The board contains a 200k gate device, but the 
firmware says its for a 400k gate device.

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
A boy can learn a lot from a dog: obedience, loyalty, and the importance
of turning around three times before lying down.
-- Robert Benchley

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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 gene heskett :
>
> It is a firmware problem.  The board contains a 200k gate device, but the
> firmware says its for a 400k gate device.

I had this problem 3 months ago and then it disappeared until yesterday.
So are You telling that I had 200K card working with 400K firmware?

BTW it is not working with 200K firmware. I tried it just now.

Viesturs

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Re: [Emc-users] PID & BLDC

[gene heskett]

On Saturday, November 26, 2011 10:01:43 AM Viesturs Lācis did opine:

> 2011/11/26 gene heskett :
> > It is a firmware problem.  The board contains a 200k gate device, but
> > the firmware says its for a 400k gate device.
> 
> I had this problem 3 months ago and then it disappeared until yesterday.
> So are You telling that I had 200K card working with 400K firmware?
> 
No, but the kernel log you posted said the card was a 200k card but the 
firmware it tried to load was for a 400k card.  Go back and look at the 
link you posted, the error was pretty clear.

> BTW it is not working with 200K firmware. I tried it just now.

Post that snippet of the load attempt please.
> 
> Viesturs

Cheers, Gene
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
There are more old drunkards than old doctors.

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Re: [Emc-users] PID & BLDC

[Peter C. Wallace]

On Sat, 26 Nov 2011, Viesturs L?cis wrote:

> Date: Sat, 26 Nov 2011 15:51:53 +0200
> From: "[UTF-8] Viesturs L?cis" 
> Reply-To: "Enhanced Machine Controller (EMC)"
> 
> To: "Enhanced Machine Controller (EMC)" 
> Subject: Re: [Emc-users] PID & BLDC
> 
> 2011/11/25 Peter C. Wallace :
>>
>> Can you unplug any daughterboard connectors on the 7I43 and launch one of
>> EMCs sample configs just to see if this is software or hardware related?
>
> I removed connectors from P3 and P4 ports on 7i43 and tried
> hm2-stepper/7i43-big sample config.
> I received error.
>
> 2011/11/25 Jon Elson :
>> You could try using my pcisetup program
>
> Sorry, Jon, it did not work.
> What I did:
> Downloaded tar.gz file, unpacked and ran it according to Your instructions.
> Then in the same terminal window I ran emc and chose
> hm2-stepper/7i43-big sample config.
> I got the same error.
> If that matters, I pasted it here:
> http://pastebin.com/hcynzdEb
>
> So it seems that the problem is in hardware.
> I will now try attaching the card and hdd to another (older)
> motherboard and see, if the problem is in 7i43 card or in motherboard.

I would suspect a cable also, cables can be the cause of lots of problems that 
come and go...


>
> Viesturs
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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>

Peter Wallace
Mesa Electronics

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(")_(") signature to help him gain world domination.


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Re: [Emc-users] PID & BLDC

[Peter C. Wallace]

On Sat, 26 Nov 2011, gene heskett wrote:


Date: Sat, 26 Nov 2011 10:05:14 -0500
From: gene heskett 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] PID & BLDC

On Saturday, November 26, 2011 10:01:43 AM Viesturs L??cis did opine:



2011/11/26 gene heskett :
> It is a firmware problem.  The board contains a 200k gate device, but
> the firmware says its for a 400k gate device.

I had this problem 3 months ago and then it disappeared until yesterday.
So are You telling that I had 200K card working with 400K firmware?

No, but the kernel log you posted said the card was a 200k card but the 
firmware it tried to load was for a 400k card.  Go back and look at the 
link you posted, the error was pretty clear.


Before the 7I43 is configured is has only a small CPLD for the EPP 
handshaking and FPGA programming control. This CPLD only connects to one 
parallel port data bit. This allows a very minimal 2 input bits and 2 
output bits but this is sufficient to load the FPGA. The 200K indication
just means that after trying to read one of these bits the host computer got a 
0 bit. Many hardware problems can mimic this.


When  Viesters first had this problem months ago ISTR that if driver debugging 
was turned on, the EPP port simply read as all 0's which would cause the 200K 
warning.






BTW it is not working with 200K firmware. I tried it just now.


Post that snippet of the load attempt please.


Viesturs


Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
There are more old drunkards than old doctors.

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Peter Wallace
Mesa Electronics

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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Peter C. Wallace :
>
> I would suspect a cable also, cables can be the cause of lots of problems that
> come and go...

I myself soldered that cable and had it checked with multimeter.

If the problem was in cable, I should be able to get it working for a
moment by touching/folding it, but that is not the case.

Also - during these 3 months I was moving that PC around the frame of
machine and it was working as I tried it for several times, but
yesterday I did not even touch the PC case, when it stopped working.

Anyway, I tried now with other cable, that has never been used before
- still the same.
Also previous time, I was swapping 7i43s among different D525 boards
with 2 different cables and had no improvement.

Viesturs

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Re: [Emc-users] PID & BLDC

[gene heskett]

On Saturday, November 26, 2011 10:54:38 AM Peter C. Wallace did opine:

> On Sat, 26 Nov 2011, gene heskett wrote:
> > Date: Sat, 26 Nov 2011 10:05:14 -0500
> > From: gene heskett 
> > Reply-To: "Enhanced Machine Controller (EMC)"
> > 
> > 
> > 
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] PID & BLDC
> > 
> > On Saturday, November 26, 2011 10:01:43 AM Viesturs Lےےcis did opine:
> > 
> > 2011/11/26 gene heskett :
> > > It is a firmware problem.  The board contains a 200k gate device,
> > > but the firmware says its for a 400k gate device.
> > 
> > I had this problem 3 months ago and then it disappeared until
> > yesterday. So are You telling that I had 200K card working with 400K
> > firmware?
> >
> >No, but the kernel log you posted said the card was a 200k card but the
> >firmware it tried to load was for a 400k card.  Go back and look at the
> >link you posted, the error was pretty clear.
> 
> Before the 7I43 is configured is has only a small CPLD for the EPP
> handshaking and FPGA programming control. This CPLD only connects to one
> parallel port data bit. This allows a very minimal 2 input bits and 2
> output bits but this is sufficient to load the FPGA. The 200K indication
> just means that after trying to read one of these bits the host computer
> got a 0 bit. Many hardware problems can mimic this.
> 
> When  Viesters first had this problem months ago ISTR that if driver
> debugging was turned on, the EPP port simply read as all 0's which
> would cause the 200K warning.
> 
> > BTW it is not working with 200K firmware. I tried it just now.
> 
> Post that snippet of the load attempt please.
> 
> > Viesturs
> 
> Cheers, Gene

Please fix your quoting Peter.  There is no way to separate what you wrote 
above from what I wrote above.  You'll have people thinking I'm an expert 
or something. :)

Cheers, Gene
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
History teaches us that men and nations behave wisely once they have
exhausted all other alternatives.
-- Abba Eban

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Re: [Emc-users] PID & BLDC

[Dave]

I have a few MW525 boards and two 7i43's here if you want me to try 
something.

One is hooked up and running on my bench right now and I am running the 
master software as of about a month ago.

But as Peter said, I think the same error occurs if you disconnect the 
EPP cable or don't connect the 5 volts to the 7i43 board. The last error 
is the key - it can't find the board at all.

You might want to make up another cable?

Dave


On 11/26/2011 10:32 AM, Peter C. Wallace wrote:
> On Sat, 26 Nov 2011, gene heskett wrote:
>
>> Date: Sat, 26 Nov 2011 10:05:14 -0500
>> From: gene heskett 
>> Reply-To: "Enhanced Machine Controller (EMC)"
>> 
>> To: emc-users@lists.sourceforge.net
>> Subject: Re: [Emc-users] PID & BLDC
>>
>> On Saturday, November 26, 2011 10:01:43 AM Viesturs L��cis did opine:
>
>> 2011/11/26 gene heskett :
>> > It is a firmware problem. The board contains a 200k gate device, but
>> > the firmware says its for a 400k gate device.
>>
>> I had this problem 3 months ago and then it disappeared until yesterday.
>> So are You telling that I had 200K card working with 400K firmware?
>>
>> No, but the kernel log you posted said the card was a 200k card but 
>> the firmware it tried to load was for a 400k card. Go back and look 
>> at the link you posted, the error was pretty clear.
>
> Before the 7I43 is configured is has only a small CPLD for the EPP 
> handshaking and FPGA programming control. This CPLD only connects to 
> one parallel port data bit. This allows a very minimal 2 input bits 
> and 2 output bits but this is sufficient to load the FPGA. The 200K 
> indication
> just means that after trying to read one of these bits the host 
> computer got a 0 bit. Many hardware problems can mimic this.
>
> When Viesters first had this problem months ago ISTR that if driver 
> debugging was turned on, the EPP port simply read as all 0's which 
> would cause the 200K warning.
>
>
>
>
>> BTW it is not working with 200K firmware. I tried it just now.
>
> Post that snippet of the load attempt please.
>>
>> Viesturs
>
> Cheers, Gene
>
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
>
>
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Re: [Emc-users] Next distribution after Ubuntu 10.04 LTS is no longer supported?

[Chris Morley]

> The question to answer it not which distro _you_ prefer, but which
> will be best for the project, and best for new users.
> 
> -- 
> atp
> The idea that there is no such thing as objective truth is, quite simply, 
> wrong.
> 

well I tried Unity (the new window manager) from a livecd when it first came 
out.
It sucked for doing work. I'm sure that the new gtk3 windows manager will be 
quite the same. They were made with program users rather then workers in mind.
It may get better I tried the first released version.
This seems to be the major complaint of the new user interfaces - harder to do 
real work
and not intuative.
But maybe just changing the window manager is enough for us.

Chris M





  
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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Dave :
> I have a few MW525 boards and two 7i43's here if you want me to try
> something.

What can You say about that combination? Ever had any difficulties
with setting them up?

> One is hooked up and running on my bench right now and I am running the
> master software as of about a month ago.
>
> But as Peter said, I think the same error occurs if you disconnect the
> EPP cable or don't connect the 5 volts to the 7i43 board. The last error
> is the key - it can't find the board at all.

I do have external 5V supply from PC's PSU connected, otherwise I
would not had it working yesterday morning.

> You might want to make up another cable?

Ok, I will try to find multimeter tomorrow and check the cable again.

Viesturs

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Re: [Emc-users] PID & BLDC

[Dave]

I'm doing my first 7i43 machine setup right now. I have been using 
5i20's or the LPT port, so time will tell, but so far everything has 
been stable. But I only have part of the setup sitting on my bench - 
nothing is on the machine yet..

 >>

Also - during these 3 months I was moving that PC around the frame of
machine and it was working as I tried it for several times, but
yesterday I did not even touch the PC case, when it stopped working.

<<

What happens when it stops working. Is the machine actually running? 
Does the PC crash ?? or ?

Dave


On 11/26/2011 11:24 AM, Viesturs Lācis wrote:
> 2011/11/26 Dave:
>
>> I have a few MW525 boards and two 7i43's here if you want me to try
>> something.
>>  
> What can You say about that combination? Ever had any difficulties
> with setting them up?
>
>
>> One is hooked up and running on my bench right now and I am running the
>> master software as of about a month ago.
>>
>> But as Peter said, I think the same error occurs if you disconnect the
>> EPP cable or don't connect the 5 volts to the 7i43 board. The last error
>> is the key - it can't find the board at all.
>>  
> I do have external 5V supply from PC's PSU connected, otherwise I
> would not had it working yesterday morning.
>
>
>> You might want to make up another cable?
>>  
> Ok, I will try to find multimeter tomorrow and check the cable again.
>
> Viesturs
>
> --
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> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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>
>


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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Dave :
> I'm doing my first 7i43 machine setup right now. I have been using
> 5i20's or the LPT port, so time will tell, but so far everything has
> been stable. But I only have part of the setup sitting on my bench -
> nothing is on the machine yet..

Have You installed EMC already? Have You tried to attach 7i43 and started EMC?


> What happens when it stops working. Is the machine actually running?
> Does the PC crash ?? or ?

As I wrote, I was trying to get servo motor turning. I was opening
EMC, trying to jog motor, failing, closing EMC, changing some settings
in HAL file and then running EMC again to see, if there is
improvement. I had made >10 attempts. So in one moment, when I tried
to start EMC, I received that well familiar error message. It was not
that machine was working. I just was not able to start EMC.
First time the error was since very beginning of my attempts to run
EMC on that PC. I tried everyhing, nothing helped and then I came next
day and it worked. It was fine for these 3 months until yesterday. I
was not using it daily, just tried once in a few weeks, because
getting motor moving was some kind of project milestone - I had to
show it to client to close one stage, get payment so that I could
proceed with next stage.

Viesturs

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Re: [Emc-users] EMC a digital pantograph milling machine?

[Florian Rist]

Hi Michael

> - is the stream of xyz values in the order 
> you would use it for cutting?

Yes.

> - what about relative speeds?

It would be ok if I could set a maximum speed and until that speed is reached 
the speed of the digitizer movements is used.

> - is it ok to generate a ngc file from the 
> digitiser stream and executed that eventually, 
> or do you need to do this in paralllel?

No, recording is not an option. I want the mill to follow the movement of the 
digitizer instantly, just as the were coupled mechanically.

See you
Florian


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Re: [Emc-users] EMC a digital pantograph milling machine?

[Chris Radek]

On Sat, Nov 26, 2011 at 06:14:05PM +0100, Florian Rist wrote:
> 
> No, recording is not an option. I want the mill to follow the
> movement of the digitizer instantly, just as the were coupled
> mechanically. 

I'd try using limit3 blocks and pid or stepgen, and none of the rest
of emc.

How you get your data stream into hal is another matter, though.
I'm not sure how you can tackle that.  Can you take all the brains
out of the digitizer and read the encoders?  That would give you
very fast realtime updates.

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Re: [Emc-users] PID & BLDC

[Dave]

Yes, EMC2 is installed, I have the 7i43 attached with a Mesa EPP ribbon cable 
and all is well so far.

But I did see that exact same error message along the way.. as I forgot to hook 
up the 5v to the card at one point.

I also saw that error as I was setting up EMC2.  I forget what I did wrong, but 
I loaded the standard demo app and a realized that I had done something else 
wrong and I corrected it.  However I do not recall what I corrected.  Something 
in the EMC2 setup files - ini or hal, etc.

I've started and stopped the config many times with EMC2 and it seems to start 
and run reliably, but I still have a lot of work to do on this configuration.

Dave



On 11/26/2011 12:03 PM, Viesturs Lācis wrote:
> 2011/11/26 Dave:
>
>> I'm doing my first 7i43 machine setup right now. I have been using
>> 5i20's or the LPT port, so time will tell, but so far everything has
>> been stable. But I only have part of the setup sitting on my bench -
>> nothing is on the machine yet..
>>  
> Have You installed EMC already? Have You tried to attach 7i43 and started EMC?
>
>
>
>> What happens when it stops working. Is the machine actually running?
>> Does the PC crash ?? or ?
>>  
> As I wrote, I was trying to get servo motor turning. I was opening
> EMC, trying to jog motor, failing, closing EMC, changing some settings
> in HAL file and then running EMC again to see, if there is
> improvement. I had made>10 attempts. So in one moment, when I tried
> to start EMC, I received that well familiar error message. It was not
> that machine was working. I just was not able to start EMC.
> First time the error was since very beginning of my attempts to run
> EMC on that PC. I tried everyhing, nothing helped and then I came next
> day and it worked. It was fine for these 3 months until yesterday. I
> was not using it daily, just tried once in a few weeks, because
> getting motor moving was some kind of project milestone - I had to
> show it to client to close one stage, get payment so that I could
> proceed with next stage.
>
> Viesturs
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>


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Re: [Emc-users] EMC a digital pantograph milling machine?

[s...@highlab.com]

Another option would be to run emc2 with emcrsh, and send the xyz coordinates 
from the digitizer as mdi g1 commands to emcrsh.

- Reply message -
From: "Chris Radek" 
Date: Sat, Nov 26, 2011 10:33
Subject: [Emc-users] EMC a digital pantograph milling machine?
To: "Enhanced Machine Controller (EMC)" 

On Sat, Nov 26, 2011 at 06:14:05PM +0100, Florian Rist wrote:
> 
> No, recording is not an option. I want the mill to follow the
> movement of the digitizer instantly, just as the were coupled
> mechanically. 

I'd try using limit3 blocks and pid or stepgen, and none of the rest
of emc.

How you get your data stream into hal is another matter, though.
I'm not sure how you can tackle that.  Can you take all the brains
out of the digitizer and read the encoders?  That would give you
very fast realtime updates.

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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Dave :
> Yes, EMC2 is installed, I have the 7i43 attached with a Mesa EPP ribbon cable 
> and all is well so far.
>
> But I did see that exact same error message along the way.. as I forgot to 
> hook up the 5v to the card at one point.
>
> I also saw that error as I was setting up EMC2.  I forget what I did wrong, 
> but I loaded the standard demo app and a realized that I had done something 
> else wrong and I corrected it.  However I do not recall what I corrected.  
> Something in the EMC2 setup files - ini or hal, etc.

It does not make much sense to me, but I will try to recheck the power supply.

Is there anything else I can do to identify the problem?
It is not D525-specific issue, because now I have hdd and 7i43
attached to Gigabyte GA-K8N51GMF-9 board with some AMD cpu.

BTW, I am now thinking of "plan B", because I expect that I will not
fix the problem and definitely will not get any other (probably, pci
based) solution in time.
So I have a question - what happens, if I will connect 7i37 pins
directly to LPT pins? Inputs to lpt input pins and output drivers to
output pins respectively.

Viesturs

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Re: [Emc-users] PID & BLDC

[John Prentice]

Viesturs, greetings

- Original Message - 
From: "Viesturs Lacis" 
>
> As I wrote, I was trying to get servo motor turning. I was opening
> EMC, trying to jog motor, failing, closing EMC, changing some settings
> in HAL file and then running EMC again to see, if there is
> improvement. I had made >10 attempts.

Sorry this is no help with your 7i43 trouble but when you get it going I 
have a suggestion to make tuning easier.

I wanted to test some very high resolution linear scales to close servo 
loops. I made the trivial modification to the PID component to change the 
Gains from Parameters to Input pins and used HAL to wire the gains to 
"scale" controls on a pyVCP. I added a "unit step" button to the VCP. That 
way you have instant tuning of the PID values and can even rescue an 
unstable situation by dragging the sliders.

I hope you find the 7i43 trouble soon and that this idea might then help.

John Prentice 


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Re: [Emc-users] EMC a digital pantograph milling machine?

[Florian Rist]

Hi

> Another option would be to run emc2 with emcrsh, and send the xyz
 > coordinates from the digitizer as mdi g1 commands to emcrsh.

Hmm, that sounds simple. So I could even connect the digitiser to a 
Windows machine, use the Immersion Windows SKD to communicate with the 
Microscribe via USB, and just send a steam of g1 commands via telent to 
EMC. I think I'll try this.

See you
Florian

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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

Thank You for the suggestion!
I really might try that, because I have no experience with servo loop
tuning and I suspect that I will spend a lot of effort there.

Viesturs

2011/11/26 John Prentice :
> Viesturs, greetings
>
> - Original Message -
> From: "Viesturs Lacis" 
>>
>> As I wrote, I was trying to get servo motor turning. I was opening
>> EMC, trying to jog motor, failing, closing EMC, changing some settings
>> in HAL file and then running EMC again to see, if there is
>> improvement. I had made >10 attempts.
>
> Sorry this is no help with your 7i43 trouble but when you get it going I
> have a suggestion to make tuning easier.
>
> I wanted to test some very high resolution linear scales to close servo
> loops. I made the trivial modification to the PID component to change the
> Gains from Parameters to Input pins and used HAL to wire the gains to
> "scale" controls on a pyVCP. I added a "unit step" button to the VCP. That
> way you have instant tuning of the PID values and can even rescue an
> unstable situation by dragging the sliders.
>
> I hope you find the 7i43 trouble soon and that this idea might then help.
>
> John Prentice
>
>
> --
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> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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[Emc-users] Next distribution after Ubuntu 10.04 LTS is no longer supported?

[Cecil Thomas]

I have to come out of lurkdom on this subject.

I am one of those who has 3 working systems running from live CD 
installations and with the exception of obvious .ini file setup and a 
tweak to disable SMI I am using it "out of the box".
I have been using EMC since the late 90's when it was on Red Hat.
I am presently using 2.3.6 on 8.04 from the live CD and If I must, 
would be happy to use it just this way for several more years.

If there had been a requirement to compile or build or otherwise 
"geek" the product the fellow that sent me the Live CD in 1999 would 
not have done so because he was NOT a geek.  Also the fellow that 
told him about it would not have because he was NOT a geek and I 
would not have told 5 or 10 more people about it because I am NOT a 
geek and neither were they.

In addition if I were a geek I would hesitate to tell other people 
about the product if it were not available in a user friendly format 
because I would then be responsible for maintaining not only my 
system but also all those to whom I had pitched it. a situation 
most likely familiar to many of you.

I certainly do not discourage the continuing progress on the 
improvement of the system.  In fact I sincerely thank those of you 
who have made the product what it is by continuing to improve it.  I 
must caution you, however that there are probably many more of us 
than you think who would rather have a working system that we can 
install and use than to have a "better" system that, due to our own 
limitations, we can not install and use.

Please do not consider for even a moment abandoning the Live CD 
simplified installation!

Thanks again for all the hard work.

Cecil 


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[Emc-users] Next distribution after Ubuntu 10.04 LTS is no longer supported?

[Cecil Thomas]

I have to come out of lurkdom on this subject.

I am one of those who has 3 working systems running from live CD 
installations and with the exception of obvious .ini file setup and a 
tweak to disable SMI I am using it "out of the box".
I have been using EMC since the late 90's when it was on Red Hat.
I am presently using 2.3.6 on 8.04 from the live CD and If I must, 
would be happy to use it just this way for several more years.

If there had been a requirement to compile or build or otherwise 
"geek" the product the fellow that sent me the Live CD in 1999 would 
not have done so because he was NOT a geek.  Also the fellow that 
told him about it would not have because he was NOT a geek and I 
would not have told 5 or 10 more people about it because I am NOT a 
geek and neither were they.

In addition if I were a geek I would hesitate to tell other people 
about the product if it were not available in a user friendly format 
because I would then be responsible for maintaining not only my 
system but also all those to whom I had pitched it. a situation 
most likely familiar to many of you.

I certainly do not discourage the continuing progress on the 
improvement of the system.  In fact I sincerely thank those of you 
who have made the product what it is by continuing to improve it.  I 
must caution you, however that there are probably many more of us 
than you think who would rather have a working system that we can 
install and use than to have a "better" system that, due to our own 
limitations, we can not install and use.

Please do not consider for even a moment abandoning the Live CD 
simplified installation!

Thanks again for all the hard work.

Cecil


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Re: [Emc-users] Next distribution after Ubuntu 10.04 LTS is no longer supported?

[Kent A. Reed]

On 11/26/2011 2:01 PM, Cecil Thomas wrote:
> I have to come out of lurkdom on this subject.
>
>
> 
>
>
> Please do not consider for even a moment abandoning the Live CD
> simplified installation!
>
> Thanks again for all the hard work.
>
> Cecil
>
Cecil:

I can only speak for myself. In my original response, I was thinking out 
loud about some of the available alternatives one could consider in 
choosing an appropriate host environment for EMC2. Once chosen, it and 
EMC2 would be available in LiveCD format just as the current 
Ubuntu-based distribution is.

I consider myself a techno-geek of the first water, but I use the LiveCD 
just as you do. It's just as great a convenience for experienced users 
as for new ones. Of course, this ease of use is paid for in sweat equity 
invested by the development team who assemble and test the LiveCD. I tip 
my hat to them!

Regards,
Kent


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Re: [Emc-users] PID & BLDC

[Dave]

On 11/26/2011 1:37 PM, Viesturs Lācis wrote:
> 2011/11/26 Dave:
>
>> Yes, EMC2 is installed, I have the 7i43 attached with a Mesa EPP ribbon 
>> cable and all is well so far.
>>
>> But I did see that exact same error message along the way.. as I forgot to 
>> hook up the 5v to the card at one point.
>>
>> I also saw that error as I was setting up EMC2.  I forget what I did wrong, 
>> but I loaded the standard demo app and a realized that I had done something 
>> else wrong and I corrected it.  However I do not recall what I corrected.  
>> Something in the EMC2 setup files - ini or hal, etc.
>>  
> It does not make much sense to me, but I will try to recheck the power supply.
>
> Is there anything else I can do to identify the problem?
> It is not D525-specific issue, because now I have hdd and 7i43
> attached to Gigabyte GA-K8N51GMF-9 board with some AMD cpu.
>
> BTW, I am now thinking of "plan B", because I expect that I will not
> fix the problem and definitely will not get any other (probably, pci
> based) solution in time.
> So I have a question - what happens, if I will connect 7i37 pins
> directly to LPT pins? Inputs to lpt input pins and output drivers to
> output pins respectively.
>
> Viesturs
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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>
>

Viesturs,

Is your 5 volt supply that you are using floating? IE, the 0V level is 
not referenced to the wall plug etc?

If you are not sure, you might want to try stealing 5 volts off your PC. 
You can cut off a USB cord and get 5 volts from that and that will be 
referenced to PC ground obviously. On my bench top mockup I cut off a 
Floppy disk drive connector from the power supply to use the red and 
black wires for +5 and ground to drive the 7i43 card. It works fine.

Also, how long is your EPP cord? I forget the max distance but it is not 
very far. Maybe 6 feet or so?? I think the specs are in the 7i43 manual.

Dave



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Re: [Emc-users] PID & BLDC

[Dave]

Smart move John,

I need to add that to my "TODO" list for this next machine..  as I 
expect tuning will be a challenge.

Dave

On 11/26/2011 1:38 PM, John Prentice wrote:
> Viesturs, greetings
>
> - Original Message -
> From: "Viesturs Lacis"
>
>> As I wrote, I was trying to get servo motor turning. I was opening
>> EMC, trying to jog motor, failing, closing EMC, changing some settings
>> in HAL file and then running EMC again to see, if there is
>> improvement. I had made>10 attempts.
>>  
> Sorry this is no help with your 7i43 trouble but when you get it going I
> have a suggestion to make tuning easier.
>
> I wanted to test some very high resolution linear scales to close servo
> loops. I made the trivial modification to the PID component to change the
> Gains from Parameters to Input pins and used HAL to wire the gains to
> "scale" controls on a pyVCP. I added a "unit step" button to the VCP. That
> way you have instant tuning of the PID values and can even rescue an
> unstable situation by dragging the sliders.
>
> I hope you find the 7i43 trouble soon and that this idea might then help.
>
> John Prentice
>
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
> ___
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> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>


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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Dave :
>
> Is your 5 volt supply that you are using floating? IE, the 0V level is
> not referenced to the wall plug etc?
>
> If you are not sure, you might want to try stealing 5 volts off your PC.

I already am taking 5V supply from PC's PSU.

> Also, how long is your EPP cord? I forget the max distance but it is not
> very far. Maybe 6 feet or so?? I think the specs are in the 7i43 manual.

7i43 is inside PC case. Cable length is less than 50 cm (20 inches).

Viesturs

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Re: [Emc-users] PID & BLDC

[Jan de Kruyf]

I seem to remember some long ago shit with the rise time of the 5V supply
for some logic ICs. In fact I installed a DeltaTau board that
hangs every other start-up because the start-up time of some PC
power-supply that supplies it is too slow.

Solution to that one: interlock the 5 Volt with the power-supply ready
signal from the PSU.

It is a problem with any cheap switch-mode power-supply, but then I did NOT
say that this is your problem; but it might.

cheers

j.


On Sat, Nov 26, 2011 at 11:08 PM, Viesturs Lācis
wrote:

> 2011/11/26 Dave :
> >
> > Is your 5 volt supply that you are using floating? IE, the 0V level is
> > not referenced to the wall plug etc?
> >
> > If you are not sure, you might want to try stealing 5 volts off your PC.
>
> I already am taking 5V supply from PC's PSU.
>
> > Also, how long is your EPP cord? I forget the max distance but it is not
> > very far. Maybe 6 feet or so?? I think the specs are in the 7i43 manual.
>
> 7i43 is inside PC case. Cable length is less than 50 cm (20 inches).
>
> Viesturs
>
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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Re: [Emc-users] PID & BLDC

[Viesturs Lācis]

2011/11/26 Jan de Kruyf :
> I seem to remember some long ago shit with the rise time of the 5V supply
> for some logic ICs. In fact I installed a DeltaTau board that
> hangs every other start-up because the start-up time of some PC
> power-supply that supplies it is too slow.
>
> Solution to that one: interlock the 5 Volt with the power-supply ready
> signal from the PSU.

I am ready to test even craziest possible causes of the problem :))
I suppose I could test it by measuring the voltage right before
starting EMC. Is that correct? I suspect I need something above 4V for
the card to work.
Another thing - Power LED on the card is shining, when I turn on the
PC, so I suspect that is a signal, that it receives 5V power.

Viesturs

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Re: [Emc-users] PID & BLDC

[Jan de Kruyf]

Viesturs,
the problem is in the rate of change of the ps. in other words how fast the
5 Volt is reached from startup.
A switch-mode supply pumps up the output capacitor a little bit with each
cycle of the switching circuit ( like a bicycle pump with a tyre).
So if the ps is a bit cheap it might take some time before the capacitor is
pumped up to 5 Volt. So that is why there is a ps. ready signal coming from
the ps to the motherboard in the big ps plug.

maybe try putting a manual switch in the card 5Volt supply that you switch
on as soon as the bios test screen comes up. At that point the ps is stable
cause the computer has started, and it is early enough for linux, which has
not started yet.

At the same time the rise of the 5 Volt is guaranteed to be fast enough in
this way. And see what happens. You never know.


cheers

j.



On Sat, Nov 26, 2011 at 11:38 PM, Viesturs Lācis
wrote:

> 2011/11/26 Jan de Kruyf :
> > I seem to remember some long ago shit with the rise time of the 5V supply
> > for some logic ICs. In fact I installed a DeltaTau board that
> > hangs every other start-up because the start-up time of some PC
> > power-supply that supplies it is too slow.
> >
> > Solution to that one: interlock the 5 Volt with the power-supply ready
> > signal from the PSU.
>
> I am ready to test even craziest possible causes of the problem :))
> I suppose I could test it by measuring the voltage right before
> starting EMC. Is that correct? I suspect I need something above 4V for
> the card to work.
> Another thing - Power LED on the card is shining, when I turn on the
> PC, so I suspect that is a signal, that it receives 5V power.
>
> Viesturs
>
>
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> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
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[Emc-users] (no subject)

[Robert van dyke]

Please remove me from your mailing list.

Bob Van Dyke
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Re: [Emc-users] PID & BLDC

[Dave]

If you are not booting EMC2 up immediately, then you should be able to 
power up the PC, let the voltage stabilize (??) and then start EMC2. 
That should negate any power supply - slow rise time issues - if they exist.

I do not have EMC2 coming up on bootup right now.

Viesturs, if you post your hal and ini file some place, I will try and 
load the same setup that you have on this MW525, with a 7i43 tonight.

Dave

On 11/26/2011 4:38 PM, Viesturs Lācis wrote:
> 2011/11/26 Jan de Kruyf:
>
>> I seem to remember some long ago shit with the rise time of the 5V supply
>> for some logic ICs. In fact I installed a DeltaTau board that
>> hangs every other start-up because the start-up time of some PC
>> power-supply that supplies it is too slow.
>>
>> Solution to that one: interlock the 5 Volt with the power-supply ready
>> signal from the PSU.
>>  
> I am ready to test even craziest possible causes of the problem :))
> I suppose I could test it by measuring the voltage right before
> starting EMC. Is that correct? I suspect I need something above 4V for
> the card to work.
> Another thing - Power LED on the card is shining, when I turn on the
> PC, so I suspect that is a signal, that it receives 5V power.
>
> Viesturs
>
> --
> All the data continuously generated in your IT infrastructure
> contains a definitive record of customers, application performance,
> security threats, fraudulent activity, and more. Splunk takes this
> data and makes sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-novd2d
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> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>


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Re: [Emc-users] rsync causes 'ERROR: Unexpected realtime delay'

[gene heskett]

On Saturday, November 26, 2011 08:10:17 PM gene heskett did opine:

> On Friday, November 25, 2011 11:17:21 AM kqt4a...@comcast.net did opine:
> > Each night I backup my EMC machine home directory to a different
> > computer If I leave EMC running I get 'ERROR: Unexpected realtime
> > delay'
> 
> I'll have to test this myself as I do a backup of:
> 
> FQDNdir  level   MB-IN  MB-OUT CMP% MM:ss  KB/sec MM:SS
> KB/Sec shop/etc0  10   2  18.1  0:05   399.0 
> 0:00 18140.0 shop/home   0 530 232  43.7  3:46 
> 1048.5  0:05 47434.6 shop/root   0 719 269  37.5 
> 6:09   746.3  0:05 55133.6 shop/usr/lib/amanda 1   0   0  
> 3.3  0:05 0.4  0:0010.0 shop/usr/local  0   2  
> 1  27.7  0:01   540.4  0:00  6900.0 shop/usr/src0  54  
>10  17.9  0:19   532.7  0:00 99110.0 shop/var/lib/amanda 1  
> 3   1  17.2  0:01   661.6  0:00  6030.0
> 
> Using amanda, which uses tar
 
As of tonight at about 5:30P, emc had not reported an Unexpected Realtime 
Error.  emc, ff, and konversation were all left running.  But that also is 
only one amanda run, so I left it running for another night.

> > The rsync cronjob causes this
> > I have varied time and disabled job so I am sure of this
> > I use 'rsync -vcupotrile ssh' and the files copied are
> > 
> > sending incremental file list
> > .d..t.. emc2/configs/FireballCNCV90/
> >  >  > 
> > sent 540302 bytes  received 497188 bytes  3907.68 bytes/sec
> > total size is 4510283718  speedup is 4347.30
> > 
> > Other than 'don't do that' any suggestions
> 
> That particular message is only reported the first time it is
> encountered. In my case it is at emc startup almost instantly on AXIS
> drawing the logo's backplot, but only about 25% of the time.  So
> obviously you are not seeing that, then but later.
> 
> So I'll make it a point to leave it running after a clean restart, then
> check the next morning to see if it has been reported.  FWIW, if I get a
> clean start, the only thing I've noted that will cause that error later,
> is to fire up some kde-based gfx utility such as kaffeine.  As I often
> have a screen with FF running, and a 3rd screen with Konversation
> running, I have not noted that either of those can trigger it on my
> machine.
> 
> I found the kaffeine trigger while running the latency-test which had at
> that point been returning about a 10 u-sec figure max & started an
> installed but useless program since I don't have a tv card in that box,
> but the kaffeine startup caused a 400 u-sec latency.  I assume there
> would be others just as bad on my box/video card.
> 
> In my use of FF & konversation, I don't switch off the emc screen unless
> it is halted/paused, because I have never rigged a manual e-stop, and
> when on some other screen, the esc focus is not relayed to emc.
> 
> Don't ask me how I know that, or how many bits broken or clamps cut
> into. I do learn eventually though.  :)
> 
> > And a side note, I use pretty much stock LiveCD install
> > I use Gnome but hate it and KDE, too bloated and slow
> > I would vote for XFCE
> > I use it at the office on Centos
> > 
> > Richard
> 
> Cheers, Gene


Cheers, Gene
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