Crikey. I wish Wichita was closer to Maryland, or Maryland was closer
to Wichita. I would love to see your shop Stuart. You gots the kinda
toyls I can only drool over.
Mark
On 08/18/2010 05:54 PM, Stuart Stevenson wrote:
> Gentlemen,
>I have not heard much about an EMC Fest other than th
On 08/18/2010 12:57 PM, Gene Heskett wrote:
> Yup. One of the neighbors down at the bottom of our street is a volunteer
> fireman, and has a recording anemometer in his back yard, which said 112 mph
> when it was uncovered. A black willow came down and covered it up, but it
> was not otherwise dam
if I have the funds, transportation and time i'd love to come down and
play. if I can make it I'll bring my big servos and their drives, if anyone
would want to fiddle with them. I havnt been keeping to close track on what
people are finding on fanuc drives lately.
Jim
On Wed, Aug 18, 2010 at 5
Hello, guys!
I have been running my waterjet cutting machine with EMC for a while
now (currently that is version 2.4.3.1) and I have gathered few
questions about the way, how EMC interprets the g-code.
The main issue is that sometimes I receive this error message:
"Arc move in concave corner cann
On Thu, Aug 19, 2010 at 6:50 AM, Jim Coleman wrote:
> if I have the funds, transportation and time i'd love to come down and
> play. if I can make it I'll bring my big servos and their drives, if
> anyone
> would want to fiddle with them. I havnt been keeping to close track on
> what
> people ar
On Thursday, August 19, 2010 08:33:47 am Mark Wendt did opine:
[...]
> Glad to hear there was nothing more than property damage. All that
> stuff flying around could have caused some serious injuries. Didn't
> hurt any of the machinery, did it?
>
> Mark
No, but thanks for asking. Power was re
On Thu, Aug 19, 2010 at 07:54:36AM -0500, Viesturs L??cis wrote:
> I just received also this error message:
> "Straight feed in concave corner cannot be reached by the tool without
> gouging"
> It indicated that the error is around line 24, so here is the part of the
> code:
> G1 X+167.031 Y+46
On Thu, Aug 19, 2010 at 8:22 AM, Chris Radek wrote:
> On Thu, Aug 19, 2010 at 07:54:36AM -0500, Viesturs L??cis wrote:
>
>
>
> Yes, the problem is just what the error message says. There is a move
> that makes a concave corner but the move cannot be reached (the tool
> cannot move alongside it a
On Thu, Aug 19, 2010 at 08:32:49AM -0500, Stuart Stevenson wrote:
> On Thu, Aug 19, 2010 at 8:22 AM, Chris Radek wrote:
>
> > On Thu, Aug 19, 2010 at 07:54:36AM -0500, Viesturs L??cis wrote:
> >
> >
> >
> > Yes, the problem is just what the error message says. There is a move
> > that makes a co
2010/8/19 Chris Radek :
>
> Yes, the problem is just what the error message says. There is a move
> that makes a concave corner but the move cannot be reached (the tool
> cannot move alongside it as you request) without gouging into the
> profile of the part. Here is a screenshot showing the situ
Chris,
Sorry for the catty remark it's just that we have had several
conversations about cutter compensation routines. :)
thanks
Stuart
--
dos centavos
--
This SF.net email is sponsored by
Make an app they can't live
On Thu, Aug 19, 2010 at 09:31:42AM -0500, Viesturs L??cis wrote:
> Ok, thank You for the explanation, I kind of realised that it is the
> case that there is corner that cannot be completely reached, because
> tool is too big.
>
> The way I see the ideal solution - display the error message so th
On Thu, Aug 19, 2010 at 09:45:39AM -0500, Stuart Stevenson wrote:
> Chris,
> Sorry for the catty remark it's just that we have had several
> conversations about cutter compensation routines. :)
Yes but thanks for that reminder. I want to be clear enough about
what is going on here for everyone
2010/8/19 Chris Radek :
>
> Yes I agree the ideal solution is to know what the *desired* behavior
> is and then do it - however there are two problems with that - knowing
> what the desired behavior is - and then doing it.
>
> I don't mean to be flippant, but both are very hard. Like Stuart S
> im
Viesturs Lācis wrote:
>
> (...)
>
> I am sorry, but I do not really understand, why it is ok for corner,
> where it is turn by 90 degrees, but error is produced, if the corner
> is sharper than 90 degrees. Are there some limitations on how the path
> of the tool is offset, when G41/G42 is act
On Thu, Aug 19, 2010 at 10:48:37AM -0500, Viesturs L??cis wrote:
> Ok, but then how comes I do not receive this error, when cutting a
> rectangular hole in material, which is defined by 4 G01 moves (and G41
> or G42 is active) - there is sharp 90 degree corner and round tool -
> so the corner cann
On Thu, Aug 19, 2010 at 06:06:58PM +0200, yann jautard wrote:
>
> Did you use G64 P when using G41/42 to cut a corner ? This
> could explain why it did not produced an error.
This is unrelated.
--
This SF.net email is
2010/8/19 Chris Radek :
>
> The disconnect here is you are thinking of a corner as "where I think
> a corner should be on my part, even if there are several little moves
> in the gcode that the tool can't get in there to touch without gouging
> the part" but EMC thinks of a corner as the point wher
For me this is an issue I have to deal with quite often, - so I'm very
humbly going to put my 2 cents in.
I realize that probably everyone has their own idea of what the ideal
solution is, and wholeheartedly respect that what may seem to be a
"minor" change from a user perspective can often be
here we go again :)
On Thu, Aug 19, 2010 at 11:29 AM, Thomas D. wrote:
>
> For me this is an issue I have to deal with quite often, - so I'm very
> humbly going to put my 2 cents in.
>
I will contribute 2 cents also
>
> I realize that probably everyone has their own idea of what the ideal
> so
On Thu, Aug 19, 2010 at 12:29:39PM -0400, Thomas D. wrote:
>
> I realize that probably everyone has their own idea of what the ideal
> solution is, and wholeheartedly respect that what may seem to be a
> "minor" change from a user perspective can often be massive work from a
> developer perspec
Jim Coleman wrote:
> if I have the funds, transportation and time i'd love to come down and
> play. if I can make it I'll bring my big servos and their drives, if anyone
> would want to fiddle with them. I havnt been keeping to close track on what
> people are finding on fanuc drives lately.
>
Hi All:
Now that I'm making parts on my Bridgeport, I'm getting greedy. I want to
make gears. I want to make more complex parts. I want a 4th stage. I'm thinking
of just using a small lathe that I retrofit with one of my spare steppers and
clone the bridgeport stepper controller just to keep
Stuart Stevenson wrote:
>>
>> We just pulled a Fanuc 10/11 off the Enshu. We are using the Fanuc drives
>>
> and motors for XYZ and spindle. We will be installling PPMC and I/O hardware
> today. I should have the final schematics today. The machine was built in
> 1985. It should be a good te
On Thu, Aug 19, 2010 at 12:26 PM, Speaker To-Dirt
wrote:
> Now that I'm making parts on my Bridgeport, I'm getting greedy. I want to
> make gears. I want to make more complex parts. I want a 4th stage. I'm
> thinking of just using a small lathe that I retrofit with one of my spare
> steppers
I'd like to hook up a tachometer sensor to my mill. My idea is to have emc2
count/process the input stream of pulses and display the rpm on a pyVCP dial.
I've tried searching the archives, and cnczone, without finding info on how to
implement this.
Any ideas ?
TIA,
Rick
--
2010/8/19 Chris Radek :
>
> Let me try to explain an example. I really think the disconnect
> between how I as a programmer think about it and how a user thinks
> about it is our different understanding of what a "corner" is. I
> tried to explain this in my last message.
>
> Say you are cutting i
Do you have the CAD program too? To help your CAM package with tangent arcs
to eliminate the unreachable corners.
The easier way would be to tell your CAM package to compensate for tool
diameter, it would create a tool path at the center of the tool, always
keeping the tool tangent to the feature
On Thu, Aug 19, 2010 at 12:41:02PM -0500, Viesturs L??cis wrote:
> In Your example all the square pockets would be skipped and outside
> contour would be cut. In my example I would get, what I want.
It cannot possibly be safe to throw away part of the program and
then continue on with the rest of
... snip
Are there any issues with adding an inside radius feature to the part?
Making it as large as acceptable may allow the operator to use a range
of tool radii without changing the program or the resulting part. It
seems better to fix problems on the front end (designing with
fabrication in m
Gentlemen,
a couple pictures of the enshu's new control hardware
http://www.mpm1.com:8080/machines/enshu/controlpanel.jpg
http://www.mpm1.com:8080/machines/enshu/controlpendant.jpg
We installed honda connectors to use the existing wiring as much as
possible.
I am going out of town from tomorrow u
>
> For the 4th axis, I have a Troyke CNC rotary table that I
> bought on
> eBay for $149:
>
> http://igor.chudov.com/projects/Bridgeport-Series-II-Interact-2-CNC-Mill/24-Troyke-Rotary-Table-U12PNC/
>
Wow, that looks like a really great deal! I was worried about backlash in a
rotary table w
On Thu, Aug 19, 2010 at 2:12 PM, Speaker To-Dirt
wrote:
>>
>> For the 4th axis, I have a Troyke CNC rotary table that I
>> bought on
>> eBay for $149:
>>
>> http://igor.chudov.com/projects/Bridgeport-Series-II-Interact-2-CNC-Mill/24-Troyke-Rotary-Table-U12PNC/
>>
>
> Wow, that looks like a reall
On Thu, Aug 19, 2010 at 02:07:44PM -0500, Stuart Stevenson wrote:
> Gentlemen,
> a couple pictures of the enshu's new control hardware
>
> http://www.mpm1.com:8080/machines/enshu/controlpanel.jpg
> http://www.mpm1.com:8080/machines/enshu/controlpendant.jpg
Neat! That looks very much like the tou
> > Yes, the problem is just what the error message says. There is a move
> > that makes a concave corner but the move cannot be reached (the tool
> > cannot move alongside it as you request) without gouging into the
> > profile of the part. Here is a screenshot showing the situation.
> > http:
I used a harmonic drive gear box and small dc motor. I mounted the drive to
an angle plate. There's a large one on ebay at the moment, #350385952737,
which I'd buy but overseas shipping would be a killer. I'm not sure about
the holding torque though.
> -Original Message-
> From: Speake
On Thu, Aug 19, 2010 at 3:50 PM, Chris Radek wrote:
> On Thu, Aug 19, 2010 at 02:07:44PM -0500, Stuart Stevenson wrote:
> > Gentlemen,
> > a couple pictures of the enshu's new control hardware
> >
> > http://www.mpm1.com:8080/machines/enshu/controlpanel.jpg
> > http://www.mpm1.com:8080/machines/e
Hi Rick
Do you have a tachogenerator or an resolver?
a tachogenerator is like a dynamo giving a sinus voltage/current wich is
proportional to the revolutions. You can use a rectifier circuit and measuere
the effective voltage via a/d
A resolver is tricky, you need to excite it with a sinus signa
dambacher-retrofit.de writes:
>
> Hi Rick
>
> Do you have a tachogenerator or an resolver?
>
> a tachogenerator is like a dynamo giving a sinus voltage/current wich is
> proportional to the revolutions. You can use a rectifier circuit and measuere
> the effective voltage via a/d
>
> A resolv
On Thu, 2010-08-19 at 23:31 +0200, dambacher-retrofit.de wrote:
> Hi Rick
>
> Do you have a tachogenerator or an resolver?
>
> a tachogenerator is like a dynamo giving a sinus voltage/current wich is
> proportional to the revolutions. You can use a rectifier circuit and measuere
> the effective v
Nice! Love those cute blue connectors. ;-)
Use them for encoders all the time.
Dave
On Thu, 2010-08-19 at 14:07 -0500, Stuart Stevenson wrote:
> http://www.mpm1.com:8080/machines/enshu/controlpendant.jpg
--
This SF.n
On Fri, 2010-08-20 at 07:00 +1000, Frank Tkalcevic wrote:
> > > Yes, the problem is just what the error message says. There is a move
> > > that makes a concave corner but the move cannot be reached (the tool
> > > cannot move alongside it as you request) without gouging into the
> > > profile of
Viesturs,
I think you need to work on the Cad to Cam to Gcode process. I put EMC2
on a production waterjet machine in June and it has been buzzing along
happily ever since.
I had to convert about 80 existing Gcode programs so EMC2 could run the
code and I was amazed at some of the poor quality
Rick,
I think if you pipe that pulse stream into an EMC2 encoder input you can
determine the velocity via a derivative function ( also a component in Hal).
Look at the developers manual for HAL and the encoder component and
derivative component. I should be easy to setup once you become
famil
Hello,
I am currently using the Xylotex 3-axis package with 4 motors, can we
run 2 stepper motors on a single y-axis? Has anyone configured that? Any
ideas, options on configuring such a setup?
Thanks,
Sam.
--
This
Rick Calder wrote:
> No, neither. I have made a few tachometers using Atmel microcontrollers. The
> sensor, either a hall effect or optical, just sends pulses and the
> microcontroller counts them up and handles the display. Another one I made
> had
> counter chips and the microcontroller basic
> wrote:
>
>> Now that I'm making parts on my Bridgeport, I'm getting greedy. I want to
>> make gears. I want to make more complex parts. I want a 4th stage. I'm
>> thinking of just using a small lathe that I retrofit with one of my spare
>> steppers and clone the bridgeport stepper contr
Jon Elson writes:
> The EMC encoder HAL component has an option to count pulses from a
> single signal (as opposed to a standard encoder with two signals in
> quadrature).
Ulf, Dave, and Jon:
Thanks for the assists. You've given me direction and now I'll dig into the
docs to understand an
Hi!
As far as I understand from the other replies, EMC should not be the
software that solves these problems.
However, as I develop on a gcode manipulating software, maybe this would
be better suited.
http://code.google.com/p/grecode/
All the gcodes are read to memory, and it would be relativel
My old control box was, well, old and slow and had only 512 MB of RAM.
So, I bought a bunch of parts on Newegg to build a small PC based on
"Mini ITX" motherboard (really small, to fit into tthe cabinet).
I put Ubuntu Lucid on it and installed EMC2 with a shell script from linuxcnc.
After the in
Jon you understand me totally. You knew I'd want to embrace the maximal
complexity and make the problem hard. So what I REALLY need is a tip-tilt 4th
stage, a 5 stage system. Am I out of signals on the parallel port? My
computer is off in the shop so I can't check right now, but I'll loo
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