[Emc-users] Newbie questions about via C3 mini itx and emc2

Hi All For the last few years I have been running turbocnc and a taig mill. I decided to go with emc2 rather than a windows based machine since linux is probably a better fit for the rest of my home network which is all mac osx based. Now I need some advice regarding hardware. I just bought

Re: [Emc-users] New cutter compensation algorithm in TRUNK

I thought that would probably be what happens. Presumably it also exact stops to set an output? Les Jeff Epler wrote: > No, I believe you'll find it exact-stops at that point. > Jeff > -- Check out the new SourceFor

Re: [Emc-users] New cutter compensation algorithm in TRUNK

On Thu, Jan 08, 2009 at 09:26:39PM +, Leslie Newell wrote: > Fair enough for exact stop but what about CV? It would potentially try > to look ahead past the read. No, I believe you'll find it exact-stops at that point. Jeff ---

Re: [Emc-users] absolute analog output signal 0 - 10 V

I think I answered your question here.. (well one way..) http://www.cnczone.com/forums/showthread.php?t=71072 " If I am understanding what you want.. Could you send the motion.spindle-speed-out thru abs? (take the absolute value of it) http://www.linuxcnc.org/docs/2.2/htm...an9/abs.9.html

Re: [Emc-users] New cutter compensation algorithm in TRUNK

Fair enough for exact stop but what about CV? It would potentially try to look ahead past the read. Les Jeff Epler wrote: > In 2.2, I believe emc would move directly to X1 Y0 and read the input. > If the resulting move on N300 creates a concave corner, then an error > occurs. > > With chris's ne

[Emc-users] absolute analog output signal 0 - 10 V

how to change this code into abosolute 0 - 10 Volt output? loadrt scale count=1 addf scale.0 servo-thread setp scale.0.gain -0.004 net spindle-speed-scale motion.spindle-speed-out => scale.0.in net spindle-speed-DAC scale.0.out => m5i20.0.dac-03-out This works but when i use M4 S i get negat

Re: [Emc-users] New cutter compensation algorithm in TRUNK

On Thu, Jan 08, 2009 at 09:01:54PM +, Leslie Newell wrote: > How is that handled currently? > > ( already in cutter comp mode ) > > N000 G0 X0 Y0 > > N100 G1 X1 > > N200 M66 P1 L0 (intended to say: immediately read digital input 1 to #5399) > > N300 G1 Y[1-2*#5399] ( so this line either goes

Re: [Emc-users] New cutter compensation algorithm in TRUNK

How is that handled currently? Actually I am more interested in writing outputs than reading inputs. For instance on a plasma cutter you may want to turn off the THC on some corners to prevent torch dive. Les Jeff Epler wrote: > I don't think it is possible to enable reading inputs. Consider

[Emc-users] Synergy and "gouging" error with the new cutter compensation

On Thu, Jan 08, 2009 at 10:44:40AM -0800, Dave Engvall wrote: > This file has extra stuff not germane to the testing but either the > 0.5 rougher or the 0.25 finisher code should work. > I would simply delete from the load #3 countersink on... > > This code executes on 2.2.5 and 2.2.8 but of c

Re: [Emc-users] Re： 5i20+sevos and ??stepper ??

Howard Chan wrote: To be perfectly honest, I can't understand your words. But scope traces are easier to translate, so let's look at your picture: > http://myweb.polyu.edu.hk/~icwfchan/p4.png The area you have labeled "1" - you need to zoom in closer there, 500mS per division doesn't show muc

Re: [Emc-users] Auto Tune?

Stephen Wille Padnos wrote: > > EMC2 has a component called "at_pid", which is an autotuning PID. It > uses something like Z-N to get the coefficients. In testing, it seemed > to create usable sets of coefficients, but the results were pretty > heavily dependent on initial conditions. You cou

Re: [Emc-users] Re： 5i20+sevos and ??stepper ??

On Thu, 8 Jan 2009, Peter C. Wallace wrote: > Date: Thu, 8 Jan 2009 10:27:06 -0800 (PST) > From: Peter C. Wallace > Reply-To: "Enhanced Machine Controller (EMC)" > > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] [utf-8] Re? 5i20+sevos and ??stepper?? > >> >> Can you r

Re: [Emc-users] Auto Tune?

> > I think it'd be easy to automate a PID tuning system like > Ziegler-Nichols > . > > It'll get you in the ballpark at least. There is a HAL component called at-pid that tries to accomplish that. However results reported by

Re: [Emc-users] Auto Tune?

Jan wrote: >I'm not sure it's the same, but I thought this was > already implemented: > http://www.linuxcnc.org/docs/devel/html/man/man9/at_pid.9.html Yep, that's what I was thinking of. Thanks, Jim Combs -- Check out

Re: [Emc-users] Auto Tune?

I'm not sure it's the same, but I thought this was already implemented: http://www.linuxcnc.org/docs/devel/html/man/man9/at_pid.9.html Regards, Jan -- Check out the new SourceForge.net Marketplace. It is the best place to

Re: [Emc-users] Auto Tune?

Sebastian Kuzminsky wrote: >Jim Combs wrote: > > >>You might not be the right person to answer this, but is it possible to >>create a Auto-Calibrate >>mode where the system would run an axis in a series of short moves in both >>directions where >>the move time is monitored and the motion variabl

Re: [Emc-users] Auto Tune?

Jim Combs wrote: > You might not be the right person to answer this, but is it possible to > create a Auto-Calibrate > mode where the system would run an axis in a series of short moves in both > directions where > the move time is monitored and the motion variables adjusted automatically > to try

Re: [Emc-users] Re： 5i20+sevos and ??stepper ??

> > Can you repost the plots of your servo motion, maybe I can guess at whats > wrong with the tuning? Never mind, I see you did and I missed it My first guess is that amplifiers velocity loop needs tuning Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into y

[Emc-users] Auto Tune?

John Wrote: > The performance of any servo system depends on how well the system > is tuned. Tuning is one of those processes that is very hard to > teach on a mailing list. In my opinion, there is no substitute > for simply spending time varying the various gains and carefully > observing the r

Re: [Emc-users] Re： 5i20+sevos and ??stepper ??

On Fri, 9 Jan 2009, Howard Chan wrote: Date: Fri, 09 Jan 2009 01:33:57 +0800 From: Howard Chan Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re: [Emc-users] [utf-8] Re? 5i20+sevos and ??stepper?? Peter C. Wallace : On Thu, 8 Jan 2009,

Re: [Emc-users] Re： 5i20+sevos and ??stepper ??

Howard Chan wrote: > Before I asked you a same question, at that time you suggest me using > analog mode to control my SANYO DENKI servo amplifier. Yet, I can solve > the error so large problem,(http://myweb.polyu.edu.hk/~icwfchan/p4.png) > especial accelerate and decelerate. I need set a large

Re: [Emc-users] Re： 5i20+sevos and ??stepper ??

Peter C. Wallace 提到: > On Thu, 8 Jan 2009, WF Chan wrote: > >> Date: Thu, 8 Jan 2009 03:59:47 -0800 (PST) >> From: WF Chan >> Reply-To: "Enhanced Machine Controller (EMC)" >> >> To: emc-users@lists.sourceforge.net >> Subject: [Emc-users] [big5] Re�G 5i20+sevos and ??stepper?? >> >> I am using 5i2

Re: [Emc-users] Re： 5i20+sevos and ??stepper??

On Thu, 8 Jan 2009, WF Chan wrote: Date: Thu, 8 Jan 2009 03:59:47 -0800 (PST) From: WF Chan Reply-To: "Enhanced Machine Controller (EMC)" To: emc-users@lists.sourceforge.net Subject: [Emc-users] [big5] Re?G 5i20+sevos and ??stepper?? I am using 5i20 control card in analog mode but there

Re: [Emc-users] Software question

Hi Richard, sorry it took a while to reply... > Could someone explain or point me to documentation that explains the > following: > > 1.What does the motion controller do? Is is part of HAL? How is it > built? I see that the file motion.c has a 'main' function but the > Makefile does not link it,

Re: [Emc-users] Software question

On Thursday 08 January 2009, Kenneth Lerman wrote: > For my use and for (as far as I can tell), almost everyone else, it is > unnecessary. NML describes the data structures as well as the methods for transmitting the PODs to the various parts of EMC - *Everyone* uses it. Even within the task pla

Re: [Emc-users] New cutter compensation algorithm in TRUNK

On Thu, Jan 08, 2009 at 06:54:37AM +, Leslie Newell wrote: > Looks good. It would be nice if you could enable these: > > reading/writing motion's digital/analog ins/outs I don't think it is possible to enable reading inputs. Consider the following: ( already in cutter comp mode ) N000 G

Re: [Emc-users] Software question

For my use and for (as far as I can tell), almost everyone else, it is unnecessary. It is also complex. Ken paul_c wrote: > On Wednesday 07 January 2009, Kenneth Lerman wrote: >> NML is used because it supports an environment where functions are split >> across multiple machines. >> >> I don't k

Re: [Emc-users] Motherboard recommendation, WIKI seems not up to date

Thank you all for the information. I will report back after I got my board. Regards, Thomas -- Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Sour

[Emc-users] Re： 5i20+sevos and ??stepper??

I am using 5i20 control card in analog mode but there are not any output telling me using HostMot2. Is it means that HostMot2 is only using in digital mode? If I would like to use digital, which .hal and .ini files I need to change. Are there any tutorial for me? Thank you!! ___

Re: [Emc-users] New cutter compensation algorithm in TRUNK

> The new algorithm handles concave corners And here I am, halfway through writing the next installment of Adventures in Filleting, explaining how to lay an arc into a concave corner to avoid gouging. I am crushed, I tell you, -crushed- by this horrible news! The timing is actually great. I'

Re: [Emc-users] 5i20+sevos and ??stepper?? error

Sebastian Kuzminsky escribió: > Arnold Riter CNC wrote: >> Debug file information: >> insmod: error inserting >> '/usr/realtime-2.6.24-16-rtai/modules/emc2/ddt.ko': -1 File exists >> m5i20_motion.hal:55: exit value: 1 >> m5i20_motion.hal:55: insmod failed, returned -1 >> 8446 >> PID TTY STA

Re: [Emc-users] NOMINATION -- Stuart Stevenson - declined

Oh heck Stuart, you've been contributing quite a bit already. You could be our token noob... ;-) Mark At 03:32 PM 1/7/2009, you wrote: >Gentlemen, >It is with reservation that I must respectfully decline the >nomination. I am honored to be considered. It is not lack of interest. >I don't f

Re: [Emc-users] Software question

On Wednesday 07 January 2009, Kenneth Lerman wrote: > NML is used because it supports an environment where functions are split > across multiple machines. > > I don't know how widely that functionality is used, though. As far as > I'm concerned, it adds an unnecessary level of complexity. Please d

Re: [Emc-users] 5i20+sevos and ??stepper?? error

Arnold Riter CNC wrote: > Debug file information: > insmod: error inserting > '/usr/realtime-2.6.24-16-rtai/modules/emc2/ddt.ko': -1 File exists > m5i20_motion.hal:55: exit value: 1 > m5i20_motion.hal:55: insmod failed, returned -1 > 8446 > PID TTY STAT TIME COMMAND > Stopping realtime th