Re: [Emc-users] tuning question
dave wrote: > 1980 Fanuc drives are not likely to have the freq response of newer > drives. ( 3 phase scr switched on the Mazak). My Servo Dynamics are 2 > KHz + drives and DC. Not quite the same as your requirements. > I'm pretty sure these are NOT SCR drives, but, yes, a phase-controlled servo amp definitely would have some real limited bandwidth. Still, even 1980 drives might have less bandwidth than EMC has with a 1 KHz servo period. Jon -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tuning question
Stuart Stevenson wrote: > On Mon, Oct 11, 2010 at 12:21 PM, Jon Elson wrote: > > >> >> I was SURE it >> was some kind of computer-caused >> delay in the servo data. >> >> > Is it possible EMC2 responds faster than the Fanuc servo drive? > > > It is possible, as apparently these are digital servo drives. If you have manuals, maybe you can find out what the servo update rate is. But, I'm leaning more toward thinking the tuning of the servo amp has been set realls "slow" for some reason. >> Not knowing the exact signal the Fanuc 10/11M control sent to the servo >> > drive I have used many different settings of the accel. The servo amp > certainly has tuning parameters. Are some of them set by the control on > startup. Are some of them read from nonvolatile storage in the servo amp? I > don't know and I don't have any way of checking and I don't have any way of > setting any parameters in the servo drive. > My tuning logic tried to send the servo drive a fast accel signal to > emulate the control. I started with 2 and adjusted up from there. > > I don't know these amps, but many of them use a serial port and a PC program that downloads parameters that are then stored in non-volatile storage in the servo amp. The program can also run autotune procedures and graph the results, as well as let you view and alter the settings. I've done this on Yaskawa amps. I suppose with canbus or some other control protocol, the NC control could change the parameters on the fly, but I suspect anything with +/- 10 V velocity commands, they are not doing that. Jon -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tuning question
On Mon, 2010-10-11 at 17:18 -0500, Stuart Stevenson wrote: > On Mon, Oct 11, 2010 at 3:33 PM, Chris Radek wrote: > > > > > Stuart, long ago when we figured out how to set the scaling, you wrote > > this: > > > > > > On Wed, Sep 15, 2010 at 03:32:31PM -0500, Stuart Stevenson wrote: > > > Hi, > > > I checked the DAC output - it was .889 - I changed the scale from 8.89 > > to > > > .889 - the response was back to just like before. > > > The config files to match this picture are available > > > The latest picture is; > > > http://www.mpm1.com:8080/machines/enshu/Screenshot-1.png > > > > > > Unfortunately this picture is gone, but I remember it looking *really* > > good and I commented on it. It was within a few encoder counts on a > > rapid. What happened since then? It seems like you had a major > > regression of some kind. > > > no regression > > http://www.mpm1.com:8080/machines/Screenshot1.png > http://www.mpm1.com:8080/machines/Screenshot2.png > http://www.mpm1.com:8080/machines/Screenshot3.png > http://www.mpm1.com:8080/machines/Screenshot4.png > > The pictures show some of the progression during tuning. Number 4 is the > final result. My questions have been trying to figure out why the traces > have the spikes like they do. But if I read things correctly you are only driving at 4 V (#4 ) not 9 V or so. I set the Mazak at 20 for accel but I also only push it to half speed (3.25 ips). > I set the max vel at 6. to be just under 400 ipm and the scale at 6 to > give 9 volts output and then tuned from there. This gives motion that looks > and feels good but still has the spikes on the beginning of the accel and > the beginning of the decel until I get close to the final tune and then it > has the spikes on all four corners as shown. I don't have a serious problem > with the machine is it moves I am just trying to figure out why this is. I > should be able to tune it out. > I still want a simple (dumb) amp and let EMC2 close the loop. I understand > a Fanuc servo system is a fine system I just don't believe it is better than > what EMC2 will do by itself, This old Fanuc is probably not as good as what > EMC2 can do. 1980 Fanuc drives are not likely to have the freq response of newer drives. ( 3 phase scr switched on the Mazak). My Servo Dynamics are 2 KHz + drives and DC. Not quite the same as your requirements. > I will shortly bypass the tach feedback on a servo system to take the > servo drives tuning out of the equation. It will probably be the Cinci as > the Enshu does not have tach feedback. We will see how that might work. > A tach is set up at X volts/thousand rpm. EMC2 puts out Y volts/thousand > rpm. I will need to set up two DACS per servo drive and scale between the > two DACs. Hook one to the velocity input and one to the tach feedback input. > This will cause the drive to read the motor speed as matching the requested > speed at all times. This will keep the drive from calculating and adding any > tuning to the output. This will allow EMC2 to close the loop. > having some fun now > thanks > Stuart > Indeed, tuning is always interesting. ;-) Dave -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Converting to EMC2
Subroutine examples http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?SubroutineSample and http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Oword -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
Hi Igor, Sheetcam is perfect for the type of 2.5 D maching you are talking about. http://homanndesigns.com/store/index.php?main_page=product_info&cPath=7&products_id=9 Cheers, Peter. Igor Chudov wrote: > Dave, can Sheetcam do basic 2.5 D milling (such as drilling holes, > pocketing etc). > > i > > On Mon, Oct 11, 2010 at 11:16 AM, Dave wrote: >> For plasma or basic waterjet cutting I think that Sheetcam is very hard >> to beat. >> >> If you find one that is open source that works, let us know. I looked >> for quite a while and in the end was happy to pay the $165 or so for >> Sheetcam. >> >> There is a Linux version of Sheetcam also so if you are doing plasma >> with EMC2, you can run it on the same machine. I haven't run the Linux >> version of sheetcam yet, I have used the Windows version so far. >> >> Like most cam software there is a learning curve, but once you get the >> hang of it, it is very fast to use. >> >> Dave >> >> On 10/10/2010 4:26 AM, Marshland Engineering wrote: >>> Can anyone recommend a goo DXF to G-Code converter? Lower cost would be >>> great. >>> It is for a plasma cutter so I need to order the cutting sequences. >>> >>> Thanks Wallace >>> -- >>> Beautiful is writing same markup. Internet Explorer 9 supports >>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. >>> Spend less time writing and rewriting code and more time creating >>> great >>> experiences on the web. Be a part of the beta today. >>> http://p.sf.net/sfu/beautyoftheweb >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >>> >> >> >> -- >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. Be a part of the beta today. >> http://p.sf.net/sfu/beautyoftheweb >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - http://www.homanndesigns.com -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tuning question
On Mon, Oct 11, 2010 at 3:33 PM, Chris Radek wrote: > > Stuart, long ago when we figured out how to set the scaling, you wrote > this: > > > On Wed, Sep 15, 2010 at 03:32:31PM -0500, Stuart Stevenson wrote: > > Hi, > > I checked the DAC output - it was .889 - I changed the scale from 8.89 > to > > .889 - the response was back to just like before. > > The config files to match this picture are available > > The latest picture is; > > http://www.mpm1.com:8080/machines/enshu/Screenshot-1.png > > > Unfortunately this picture is gone, but I remember it looking *really* > good and I commented on it. It was within a few encoder counts on a > rapid. What happened since then? It seems like you had a major > regression of some kind. > no regression http://www.mpm1.com:8080/machines/Screenshot1.png http://www.mpm1.com:8080/machines/Screenshot2.png http://www.mpm1.com:8080/machines/Screenshot3.png http://www.mpm1.com:8080/machines/Screenshot4.png The pictures show some of the progression during tuning. Number 4 is the final result. My questions have been trying to figure out why the traces have the spikes like they do. I set the max vel at 6. to be just under 400 ipm and the scale at 6 to give 9 volts output and then tuned from there. This gives motion that looks and feels good but still has the spikes on the beginning of the accel and the beginning of the decel until I get close to the final tune and then it has the spikes on all four corners as shown. I don't have a serious problem with the machine is it moves I am just trying to figure out why this is. I should be able to tune it out. I still want a simple (dumb) amp and let EMC2 close the loop. I understand a Fanuc servo system is a fine system I just don't believe it is better than what EMC2 will do by itself, This old Fanuc is probably not as good as what EMC2 can do. I will shortly bypass the tach feedback on a servo system to take the servo drives tuning out of the equation. It will probably be the Cinci as the Enshu does not have tach feedback. We will see how that might work. A tach is set up at X volts/thousand rpm. EMC2 puts out Y volts/thousand rpm. I will need to set up two DACS per servo drive and scale between the two DACs. Hook one to the velocity input and one to the tach feedback input. This will cause the drive to read the motor speed as matching the requested speed at all times. This will keep the drive from calculating and adding any tuning to the output. This will allow EMC2 to close the loop. having some fun now thanks Stuart -- dos centavos -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT Re: DXF to G-Code
Yes. The Linux and Windows versions are pretty nuch the same, though the Linux verson is getting a bit out of date now. The license will work with both the Linux and Windows versions. Les > Does the limit apply to the Linux version too ? > > *am* -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
It won't currently do conical or spherical pockets. The Linux version should run under Ubuntu 10.04 32 bit but several people have had problems. I haven't yet found out why. However the Windows version runs quite nicely under Wine. Les On 11/10/10 18:25, Igor Chudov wrote: > Can it do, say, conical or spherical pockets? > > And does it work under Ubuntu 10.04? > > Thanks Les. > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Converting to EMC2
Rudy, also, if you are just starting out, I recommend going with Ubuntu 10.04 instead of 8.04. It is much newer., will be supported longer, etc. Save your files and upgrade or reinstall. i On Mon, Oct 11, 2010 at 1:00 PM, Rudy Munguia wrote: > Hello, > > I was using Mach3 up until this past week when a couple really bad storms > passed > through and killed the pc running Mach3. I had already started building an > EMC2 > pc because I was really tired of trying to work "around" windows. So I > installed > EMC 2.4(?) on ubuntu 8.04 that I had already burned to cd, the PC is nothing > special, an old p3-600mhz with 384mb of memory, a built in Parallel-port as > port > 1, an old ATI 3D rage AGP video card, and a -really- old ( but very reliable ) > winbond parallel card as port 0. The drivers are xylotex. > > To test it out I just used a .tap i had on a usb drive, it was a 14MB > surfacing > routine written line-by-line that took about 30 hours of work just to get > running correctly on Mach3. EMC2 -really- impressed me, it had no problems > with > the gcode, and because it was about 100% smoother with the steppers, I was > able > to run 40ipm and complete the part in about 6 hours whereas it took me about > 70 > on Mach3. > > Anyway, I have read that EMC2 adheres really closely to the original NIST > rs274ngc standard, so I would like to take advantage of subroutines so my > files > aren't so large ( and time consuming). I thought using O, O1, O2, etc I could > specify subroutines, but EMC2 is reporting that it does not recognize the > control after the O. Could someone post an example of using O correctly? or > correct me if O is not how subs are implemented? > > Thank you > > Rudy > > > > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Converting to EMC2
Welcome to the list! I think we should form a subgroup on this list called Machateers Anonymous... ;-) Your reaction to EMC2 is similar to what I discovered about a year ago. If you haven't found them, there are some very good manuals on using EMC2 on the website. I believe the HTML manuals are the most current. Also, you can do searches on the website and you will find that it is a treasure trove on information. Dave On 10/11/2010 2:00 PM, Rudy Munguia wrote: > Hello, > > I was using Mach3 up until this past week when a couple really bad storms > passed > through and killed the pc running Mach3. I had already started building an > EMC2 > pc because I was really tired of trying to work "around" windows. So I > installed > EMC 2.4(?) on ubuntu 8.04 that I had already burned to cd, the PC is nothing > special, an old p3-600mhz with 384mb of memory, a built in Parallel-port as > port > 1, an old ATI 3D rage AGP video card, and a -really- old ( but very reliable ) > winbond parallel card as port 0. The drivers are xylotex. > > To test it out I just used a .tap i had on a usb drive, it was a 14MB > surfacing > routine written line-by-line that took about 30 hours of work just to get > running correctly on Mach3. EMC2 -really- impressed me, it had no problems > with > the gcode, and because it was about 100% smoother with the steppers, I was > able > to run 40ipm and complete the part in about 6 hours whereas it took me about > 70 > on Mach3. > > Anyway, I have read that EMC2 adheres really closely to the original NIST > rs274ngc standard, so I would like to take advantage of subroutines so my > files > aren't so large ( and time consuming). I thought using O, O1, O2, etc I could > specify subroutines, but EMC2 is reporting that it does not recognize the > control after the O. Could someone post an example of using O correctly? or > correct me if O is not how subs are implemented? > > Thank you > > Rudy > > > > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tuning question
Stuart, long ago when we figured out how to set the scaling, you wrote this: On Wed, Sep 15, 2010 at 03:32:31PM -0500, Stuart Stevenson wrote: > Hi, > I checked the DAC output - it was .889 - I changed the scale from 8.89 to > .889 - the response was back to just like before. > The config files to match this picture are available > The latest picture is; > http://www.mpm1.com:8080/machines/enshu/Screenshot-1.png Unfortunately this picture is gone, but I remember it looking *really* good and I commented on it. It was within a few encoder counts on a rapid. What happened since then? It seems like you had a major regression of some kind. -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Interface with the parallel port
On 11 October 2010 06:34, Farzin Kamangar wrote: > For example I have a 0 and five volt signal on pin-2-out and I want to use > it to turn spindle clockwise on its drive (inverter). I do not want to mix > parport signals with the drive signals. I switch my inverter drive direction using just a ULN2003 chip. It requires the p-port and inverter signal grounds to be the same, though. -- atp -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tuning question
On Mon, Oct 11, 2010 at 12:21 PM, Jon Elson wrote: > Stuart Stevenson wrote: > > On Sun, Oct 10, 2010 at 1:05 PM, Jon Elson > wrote: > > > > > >> > >> Wow, that is really weird! > >> > >> > > the motor has an encoder so we built a splitter cable and routed the > encoder > > feedback to EMC2 and the drive. > > > No, the splitting of the signal is not weird, the fact that EMC is > getting unaltered encoder data, and > it has those weird lags at the accel inflection points. I was SURE it > was some kind of computer-caused > delay in the servo data. > Is it possible EMC2 responds faster than the Fanuc servo drive? > > I see the disturbance in two places when I have the accel as low as 2. > The > > accel is set to 50 in the example. > > > > > 50 inch/sec^2? On a big machine? That seems like it is too high, and > no surprise the > drive can't follow. There is electrical time constant in these motors, > as opposed to > mechanical time constant (real inertia). It takes time for the drive to > ramp up current in > the motor. If there is a tunable parameter in the drive for damping on > the torque (current) > loop, you may need to reduce that damping, or maybe even in the velocity > loop. The drive > just appears to be sluggish in response to any sudden changes in command. > > Jon > > Not knowing the exact signal the Fanuc 10/11M control sent to the servo drive I have used many different settings of the accel. The servo amp certainly has tuning parameters. Are some of them set by the control on startup. Are some of them read from nonvolatile storage in the servo amp? I don't know and I don't have any way of checking and I don't have any way of setting any parameters in the servo drive. My tuning logic tried to send the servo drive a fast accel signal to emulate the control. I started with 2 and adjusted up from there. > > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- dos centavos -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
There is the linux version, but that tends to lag behind the windows version a bit. I found that running the windows version under wine works very well. On Mon, Oct 11, 2010 at 12:25 PM, Igor Chudov wrote: > Can it do, say, conical or spherical pockets? > > And does it work under Ubuntu 10.04? > > Thanks Les. > > i > > On Mon, Oct 11, 2010 at 12:19 PM, Leslie Newell > wrote: > > Yes, it will perform all of the normal 2.5D milling functions. > > > > Les > > > > On 11/10/2010 17:23, Igor Chudov wrote: > >> Dave, can Sheetcam do basic 2.5 D milling (such as drilling holes, > >> pocketing etc). > > > > > > > -- > > Beautiful is writing same markup. Internet Explorer 9 supports > > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > > Spend less time writing and rewriting code and more time creating great > > experiences on the web. Be a part of the beta today. > > http://p.sf.net/sfu/beautyoftheweb > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT Re: DXF to G-Code
On 10/11/2010 06:30 PM, Leslie Newell wrote: >The only limit is the number of lines of code. I'll send you a license > that will remove the limit for about 30 days so you can try it out properly. Does the limit apply to the Linux version too ? *am* - Andrea Montefusco iw0hdvhttp://www.montefusco.com tel: +393356992791 fax: +390623318709 - -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Converting to EMC2
On Mon, Oct 11, 2010 at 1:00 PM, Rudy Munguia wrote: > Hello, > > I was using Mach3 up until this past week when a couple really bad storms > passed > through and killed the pc running Mach3. I had already started building an > EMC2 > pc because I was really tired of trying to work "around" windows. So I > installed > EMC 2.4(?) on ubuntu 8.04 that I had already burned to cd, the PC is nothing > special, an old p3-600mhz with 384mb of memory, a built in Parallel-port as > port > 1, an old ATI 3D rage AGP video card, and a -really- old ( but very reliable ) > winbond parallel card as port 0. The drivers are xylotex. > > To test it out I just used a .tap i had on a usb drive, it was a 14MB > surfacing > routine written line-by-line that took about 30 hours of work just to get > running correctly on Mach3. EMC2 -really- impressed me, it had no problems > with > the gcode, and because it was about 100% smoother with the steppers, I was > able > to run 40ipm and complete the part in about 6 hours whereas it took me about > 70 > on Mach3. > > Anyway, I have read that EMC2 adheres really closely to the original NIST > rs274ngc standard, so I would like to take advantage of subroutines so my > files > aren't so large ( and time consuming). I thought using O, O1, O2, etc I could > specify subroutines, but EMC2 is reporting that it does not recognize the > control after the O. Could someone post an example of using O correctly? or > correct me if O is not how subs are implemented? Welcome! Example (not tested) O sub G53 G0 X0 Y0 Z0 O endsub to call it you say O call You can use numbered subs too. O100 sub G53 G0 X0 Y0 Z0 O100 endsub ... O100 call I prefer named subs myself. You can save them in files such as gotozero.ngc in your PROGRAM_PREFIX directory. -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Converting to EMC2
On Mon, Oct 11, 2010 at 11:00:30AM -0700, Rudy Munguia wrote: > Anyway, I have read that EMC2 adheres really closely to the original NIST > rs274ngc standard, so I would like to take advantage of subroutines so my > files > aren't so large ( and time consuming). I thought using O, O1, O2, etc I could > specify subroutines, but EMC2 is reporting that it does not recognize the > control after the O. Could someone post an example of using O correctly? or > correct me if O is not how subs are implemented? The ngc standard doesn't have things like flow control and subroutines; EMC2 did start with an ngc implementation long ago, but it has grown a lot of features that were not in ngc. That being said, the best place to start for all questions about EMC2's gcode is the gcode quickref: http://www.linuxcnc.org/docs/html/gcode.html >From here you'll see "O..." under flow control codes, and clicking on the O will send you to the more specific documentation. You'll be looking for sub/endsub but there are more. Chris -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
On Sun, 2010-10-10 at 21:26 +1300, Marshland Engineering wrote: > Can anyone recommend a goo DXF to G-Code converter? Lower cost would be > great. > It is for a plasma cutter so I need to order the cutting sequences. ... snip In case it might be of interest: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Simple_EMC_G-Code_Generators#Dxf2gcode_import_a_2D_DXF_file_and_produce_G_code (Short URL) http://alturl.com/5myzg I have used it with QCAD. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Converting to EMC2
Hello, I was using Mach3 up until this past week when a couple really bad storms passed through and killed the pc running Mach3. I had already started building an EMC2 pc because I was really tired of trying to work "around" windows. So I installed EMC 2.4(?) on ubuntu 8.04 that I had already burned to cd, the PC is nothing special, an old p3-600mhz with 384mb of memory, a built in Parallel-port as port 1, an old ATI 3D rage AGP video card, and a -really- old ( but very reliable ) winbond parallel card as port 0. The drivers are xylotex. To test it out I just used a .tap i had on a usb drive, it was a 14MB surfacing routine written line-by-line that took about 30 hours of work just to get running correctly on Mach3. EMC2 -really- impressed me, it had no problems with the gcode, and because it was about 100% smoother with the steppers, I was able to run 40ipm and complete the part in about 6 hours whereas it took me about 70 on Mach3. Anyway, I have read that EMC2 adheres really closely to the original NIST rs274ngc standard, so I would like to take advantage of subroutines so my files aren't so large ( and time consuming). I thought using O, O1, O2, etc I could specify subroutines, but EMC2 is reporting that it does not recognize the control after the O. Could someone post an example of using O correctly? or correct me if O is not how subs are implemented? Thank you Rudy -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
Can it do, say, conical or spherical pockets? And does it work under Ubuntu 10.04? Thanks Les. i On Mon, Oct 11, 2010 at 12:19 PM, Leslie Newell wrote: > Yes, it will perform all of the normal 2.5D milling functions. > > Les > > On 11/10/2010 17:23, Igor Chudov wrote: >> Dave, can Sheetcam do basic 2.5 D milling (such as drilling holes, >> pocketing etc). > > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tuning question
Stuart Stevenson wrote: > On Sun, Oct 10, 2010 at 1:05 PM, Jon Elson wrote: > > >> >> Wow, that is really weird! >> >> > the motor has an encoder so we built a splitter cable and routed the encoder > feedback to EMC2 and the drive. > No, the splitting of the signal is not weird, the fact that EMC is getting unaltered encoder data, and it has those weird lags at the accel inflection points. I was SURE it was some kind of computer-caused delay in the servo data. > I see the disturbance in two places when I have the accel as low as 2. The > accel is set to 50 in the example. > > 50 inch/sec^2? On a big machine? That seems like it is too high, and no surprise the drive can't follow. There is electrical time constant in these motors, as opposed to mechanical time constant (real inertia). It takes time for the drive to ramp up current in the motor. If there is a tunable parameter in the drive for damping on the torque (current) loop, you may need to reduce that damping, or maybe even in the velocity loop. The drive just appears to be sluggish in response to any sudden changes in command. Jon -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
Yes, it will perform all of the normal 2.5D milling functions. Les On 11/10/2010 17:23, Igor Chudov wrote: > Dave, can Sheetcam do basic 2.5 D milling (such as drilling holes, > pocketing etc). -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT Re: DXF to G-Code
The only limit is the number of lines of code. I'll send you a license that will remove the limit for about 30 days so you can try it out properly. Les Newell www.sheetcam.com On 10/10/2010 21:05, Marshland Engineering wrote: > Thanks Chaps > > I did download it last night and it seems to be very good. > > Any idea on what limitations there are on the "demo" version. It seems to be > running without any problems. -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
Dave, can Sheetcam do basic 2.5 D milling (such as drilling holes, pocketing etc). i On Mon, Oct 11, 2010 at 11:16 AM, Dave wrote: > For plasma or basic waterjet cutting I think that Sheetcam is very hard > to beat. > > If you find one that is open source that works, let us know. I looked > for quite a while and in the end was happy to pay the $165 or so for > Sheetcam. > > There is a Linux version of Sheetcam also so if you are doing plasma > with EMC2, you can run it on the same machine. I haven't run the Linux > version of sheetcam yet, I have used the Windows version so far. > > Like most cam software there is a learning curve, but once you get the > hang of it, it is very fast to use. > > Dave > > On 10/10/2010 4:26 AM, Marshland Engineering wrote: >> Can anyone recommend a goo DXF to G-Code converter? Lower cost would be >> great. >> It is for a plasma cutter so I need to order the cutting sequences. >> >> Thanks Wallace >> -- >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. Be a part of the beta today. >> http://p.sf.net/sfu/beautyoftheweb >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT Re: DXF to G-Code
I think it is 150 lines of Gcode or so. When you hit the limit the software will let you know and the output will be end at the 150 line mark and that will be it. Dave On 10/10/2010 4:05 PM, Marshland Engineering wrote: > Thanks Chaps > > I did download it last night and it seems to be very good. > > Any idea on what limitations there are on the "demo" version. It seems to be > running without any problems. > > Thanking Wallace > Marshland Engineering > Christchurch > New Zealand > > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DXF to G-Code
For plasma or basic waterjet cutting I think that Sheetcam is very hard to beat. If you find one that is open source that works, let us know. I looked for quite a while and in the end was happy to pay the $165 or so for Sheetcam. There is a Linux version of Sheetcam also so if you are doing plasma with EMC2, you can run it on the same machine. I haven't run the Linux version of sheetcam yet, I have used the Windows version so far. Like most cam software there is a learning curve, but once you get the hang of it, it is very fast to use. Dave On 10/10/2010 4:26 AM, Marshland Engineering wrote: > Can anyone recommend a goo DXF to G-Code converter? Lower cost would be great. > It is for a plasma cutter so I need to order the cutting sequences. > > Thanks Wallace > -- > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Does EMC support Multi-Core?
> go dumpster-diving* for older PCs > * Is this just an American colloquialism? I suppose in other parts of > the English-speaking world one would say "dustbin diving"? "Skip Diving' here. -- atp -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Interface with the parallel port
> Hello guys, > I have a question regarding an output signal on the parallel port. I need > to know how I can interface an output signal on the parport with for > instance a signal on a drive for spindle. > For example I have a 0 and five volt signal on pin-2-out and I want to use > it to turn spindle clockwise on its drive (inverter). I do not want to mix > parport signals with the drive signals. > I think I need some kind of relay (probably an electronic one) to energize > it with the parport signal and use its contacts for the spindle drive to > turn it on and run it clockwise, etc. > Thanks > Farzin Farzin, Many of the parallel breakout boards have one or more relays built right in them just for this purpose and can isolate the signal. Here is one company... http://www.cnc4pc.com/ Rick G -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
