Re: [Emc-users] touchy question
The 100 value is hardcoded in emc/motion/command.c. FWIW I disagree
with the comments and think that the value should probably come all the
way from NML, not from HAL. But either way, you can get what you want by
changing the hard-coded 100 to a different value.
1500 case EMCMOT_SPINDLE_INCREASE:
1501 rtapi_print_msg(RTAPI_MSG_DBG, SPINDLE_INCREASE);
1502 if (emcmotStatus-spindle.speed 0) {
1503 emcmotStatus-spindle.speed += 100; //FIXME - make the
step a HAL parameter
1504 } else if (emcmotStatus-spindle.speed 0) {
1505 emcmotStatus-spindle.speed -= 100;
1506 }
1507 break;
1508
1509 case EMCMOT_SPINDLE_DECREASE:
1510 rtapi_print_msg(RTAPI_MSG_DBG, SPINDLE_DECREASE);
1511 if (emcmotStatus-spindle.speed 100) {
1512 emcmotStatus-spindle.speed -= 100; //FIXME - make the
step a HAL parameter
1513 } else if (emcmotStatus-spindle.speed -100) {
1514 emcmotStatus-spindle.speed += 100;
1515 }
1516 break;
Jeff
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Re: [Emc-users] touchy question
I'd say I disagree with the whole idea of SPINDLE_INCREASE/DECREASE
We should just take it out and let the GUIs add/subtract a value and
send that as the new speed preset. That way users can have it as an
option, or whatever.
Regards,
Alex
On 4/18/2010 9:50 AM, Jeff Epler wrote:
The 100 value is hardcoded in emc/motion/command.c. FWIW I disagree
with the comments and think that the value should probably come all the
way from NML, not from HAL. But either way, you can get what you want by
changing the hard-coded 100 to a different value.
1500 case EMCMOT_SPINDLE_INCREASE:
1501 rtapi_print_msg(RTAPI_MSG_DBG, SPINDLE_INCREASE);
1502 if (emcmotStatus-spindle.speed 0) {
1503 emcmotStatus-spindle.speed += 100; //FIXME - make the
step a HAL parameter
1504 } else if (emcmotStatus-spindle.speed 0) {
1505 emcmotStatus-spindle.speed -= 100;
1506 }
1507 break;
1508
1509 case EMCMOT_SPINDLE_DECREASE:
1510 rtapi_print_msg(RTAPI_MSG_DBG, SPINDLE_DECREASE);
1511 if (emcmotStatus-spindle.speed 100) {
1512 emcmotStatus-spindle.speed -= 100; //FIXME - make the
step a HAL parameter
1513 } else if (emcmotStatus-spindle.speed -100) {
1514 emcmotStatus-spindle.speed += 100;
1515 }
1516 break;
Jeff
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[Emc-users] electric current overwrite
Hi I want to ask about electric current that turns AC servomotor in EMC2. I think EMC2 works like that: Tool move with lowest electric current. When tool is encounter resistance from work part etc. EMC2 increase electric current to overcome that resistance. Increase electric current translates into increase of torque from AC servomotor. Can I control that electric current? How is possible to put overwrite 0% to 100% that electric current? If I set overwrite to 100% than system behaves as it is. If I set overwrite to 0% than system does not move. If I set overwrite to 10% than smallest resistance to tool will stop machine. When resistance reduced than machine move to execute next bock of code. Can it be M code (machine code)? M80 47. (etc) Means 47% electric current overwrite. Thanks Aram -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Touchy -- changing the nc_files suffic from .ngc to .tap?
Hi Dave, I got the 2.4.0~pre packages from here http://emc2-buildbot.colorado.edu/~buildmaster/dists/hardy/ and followed the information provided by Sebastian Kuzminsky on 19 Mar 2010. Unfortunately I do not have enough space on the EMC2 computer to install the source so for now I will use what I have. This is the machine that is slated to go into the shop to run my mill. Thanks again for all of your help. John Guenther 'Ye Olde Pen Maker' Sterling, Virginia On Sat, 2010-04-17 at 23:21 -0400, Dave wrote: John, That doesn't sound like the correct location of touchy files for an EMC2 installation. There are at least two different ways to install EMC2. You can install it as a regularly installed program similar to how other programs are installed, or you can install them as a run-in-place application which means that they run within a specified directory. (Someone jump in here if I am wrong about something.. ) In order to get the development master version of EMC2 which is the 2.5_pre version ( as of a couple of days ago at least ... ), you need to use Git to download the EMC2 source code and install the software, preferably as a run in place installation which will keep everything in one specified directory. http://wiki.linuxcnc.org/emcinfo.pl?Installing_EMC2#Getting_the_source_with_git Line 2.2 The Wiki has good instructions on how to do this. After you install Git, you run the Git Clone command to pull the Git repository off the EMC2 server and put an cloned copy of it on your hard drive in the specified user directory.. emc2-dev per the instructions.. Note that after you do the Git Clone, the master version 2.5_pre is already exposed in your emc2-dev directory.No need to change branches etc.Compile it according to the instructions. Make sure to set the environment also..Note that this is the current development master and it can have bugs in it.. more so typically than the released versions like 2.3.5.But 2.3.5 does not have Touchy in it. Dave On 4/17/2010 9:11 PM, John Guenther wrote: I just checked and I was correct for the 2.4.0~pre version all of the touchy files located in /usr/lib/python2.5/site-packages/touchy are .pyc files. Where do I find 2.5_pre to load it on my emc2 computer? Thanks John Guenther On Sat, 2010-04-17 at 16:27 -0400, John Guenther wrote: Dave, Thanks, I will recheck it, I have not touched that machine for two weeks, been out of town. I will try to look at it tonight. John On Sat, 2010-04-17 at 13:59 -0400, Dave wrote: Hi John, the touchy python scripts all had a .pyc extension Are you sure about that?? I have 2.5_pre loaded and I searched and all that is on this version is touchy.py, no touchy.pyc file. If you have .pyc files only in 2.4_pre, you could do another git clone to a different directory. The git clone will default to the master checkout, which I believe is still the 2.5_pre version.Just search through the newly created directory for touchy.py and it should pop right up. I've been learning Python, and so far I really like it... consistent, powerful, and compact.Neat freaks must love this language with the required indentation etc.. There is a lot of Python info on the web, but I checked a book out of the local library that is really good.Learning Python, written by Mark Lutz. It is a well organized book. Sometimes books just work better for me when looking for some small detail that I am missing Dave On 4/17/2010 7:01 AM, John Guenther wrote: You are correct, however when I installed 2.4~pre the touchy python scripts all had a .pyc extension which as I understand it means they have been compiled. I am new to python and have not learned as much of it as I would like to. John Guenther 'Ye Olde Pen Maker' Sterling, Virginia On Mon, 2010-03-29 at 11:32 -0500, Dave wrote: Why are you trying to compile it? Python will run the file in interpreter mode just fine usually. Dave On 3/28/2010 6:14 PM, John Guenther wrote: Sebastian, I found where to change the .ngc suffix to .tap in the filechooser.py file however I am not familiar enough with python to be able to recompile it into filechooser.pyc. How do I do that? Thanks for all of your help. John Guenther 'Ye Olde Pen Maker' Sterling, Virginia -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list
[Emc-users] Another touchy question?
Now for another touchy question. The file emc_interface.py appears to be the link between touchy and emc2. What or where is the emc side of this link? I am thinking of experimenting with either another new user interface which is more in line with my simple CNC machines. I would like to know how to make other functions available that are not currently included in emc_interface.py. Thanks for your help. -- John Guenther 'Ye Olde Pen Maker' Sterling, Virginia -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] electric current overwrite
A servo system like you are using runs torque (amps) up or down depending upon how big the difference between commanded and actual position is. That delta is computed in the EMC but is implemented by the motor drive. The tuning of your motor drive is a critical part of what you want. The second part of this is related to the EMC. In the EMC and most other motion control systems I've encountered you normally tune PID and Feed forwards to produce the desired motor characteristics including torque. After that tuning is done properly you can adjust commanded position to control motor torque. But that tuning is a static or constant sort of thing. Some systems watch spindle load and will change tools when the load reaches a certain critical point. My thinking is that you'd need to add in some feed override so that you get good cutting, reduce chatter, or meet a machinist's feel for the cut. EMC, through HAL has adaptive feedrate control that could be hooked up to say a summed or weighted average of following error for the relevant axes. Such a system might do what I imagine that you are asking. Rayh On Sun, 2010-04-18 at 02:00 -0600, a...@conceptmachinery.com wrote: Hi I want to ask about electric current that turns AC servomotor in EMC2. I think EMC2 works like that: Tool move with lowest electric current. When tool is encounter resistance from work part etc. EMC2 increase electric current to overcome that resistance. Increase electric current translates into increase of torque from AC servomotor. Can I control that electric current? How is possible to put overwrite 0% to 100% that electric current? If I set overwrite to 100% than system behaves as it is. If I set overwrite to 0% than system does not move. If I set overwrite to 10% than smallest resistance to tool will stop machine. When resistance reduced than machine move to execute next bock of code. Can it be M code (machine code)? M80 47. (etc) Means 47% electric current overwrite. Thanks Aram -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Another touchy question?
The Axis interface is also written in Python.. do a search for axis.py and I think it will pop up. There is a lot of Axis related code. Browse through it, and you may find what you are looking for. If you want more direct access to the developers, you should sign up for the EMC IRC.I use Chatzilla as a IRC client, with Firefox. Chatzilla is a Firefox plug in.You want to get on the Freenode system, and join the #emc channel. Responses are sometimes immediate, other times delayed.. Depends on who is watching the channel at the time.. It is a pretty lively group with a worldwide audience.. :-) Dave (Dave911 on the IRC) On 4/18/2010 7:11 AM, John Guenther wrote: Now for another touchy question. The file emc_interface.py appears to be the link between touchy and emc2. What or where is the emc side of this link? I am thinking of experimenting with either another new user interface which is more in line with my simple CNC machines. I would like to know how to make other functions available that are not currently included in emc_interface.py. Thanks for your help. -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Another touchy question?
Thanks Dave. I will check out the 'Axis' interface code and I will get setup for the EMC IRC. John Guenther 'Ye Olde Pen Maker' Sterling, Virginia On Sun, 2010-04-18 at 11:36 -0400, Dave wrote: The Axis interface is also written in Python.. do a search for axis.py and I think it will pop up. There is a lot of Axis related code. Browse through it, and you may find what you are looking for. If you want more direct access to the developers, you should sign up for the EMC IRC.I use Chatzilla as a IRC client, with Firefox. Chatzilla is a Firefox plug in.You want to get on the Freenode system, and join the #emc channel. Responses are sometimes immediate, other times delayed.. Depends on who is watching the channel at the time.. It is a pretty lively group with a worldwide audience.. :-) Dave (Dave911 on the IRC) On 4/18/2010 7:11 AM, John Guenther wrote: Now for another touchy question. The file emc_interface.py appears to be the link between touchy and emc2. What or where is the emc side of this link? I am thinking of experimenting with either another new user interface which is more in line with my simple CNC machines. I would like to know how to make other functions available that are not currently included in emc_interface.py. Thanks for your help. -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] touchy question
Lots of machines have a rotary knob that goes from 50% to 150% of spindle
speed. In my experience that works out rather well in practice.
Jan
On Sun, Apr 18, 2010 at 9:42 AM, Alex Joni alex.j...@robcon.ro wrote:
I'd say I disagree with the whole idea of SPINDLE_INCREASE/DECREASE
We should just take it out and let the GUIs add/subtract a value and
send that as the new speed preset. That way users can have it as an
option, or whatever.
Regards,
Alex
On 4/18/2010 9:50 AM, Jeff Epler wrote:
The 100 value is hardcoded in emc/motion/command.c. FWIW I disagree
with the comments and think that the value should probably come all the
way from NML, not from HAL. But either way, you can get what you want
by
changing the hard-coded 100 to a different value.
1500 case EMCMOT_SPINDLE_INCREASE:
1501 rtapi_print_msg(RTAPI_MSG_DBG, SPINDLE_INCREASE);
1502 if (emcmotStatus-spindle.speed 0) {
1503 emcmotStatus-spindle.speed += 100; //FIXME - make
the step a HAL parameter
1504 } else if (emcmotStatus-spindle.speed 0) {
1505 emcmotStatus-spindle.speed -= 100;
1506 }
1507 break;
1508
1509 case EMCMOT_SPINDLE_DECREASE:
1510 rtapi_print_msg(RTAPI_MSG_DBG, SPINDLE_DECREASE);
1511 if (emcmotStatus-spindle.speed 100) {
1512 emcmotStatus-spindle.speed -= 100; //FIXME - make
the step a HAL parameter
1513 } else if (emcmotStatus-spindle.speed -100) {
1514 emcmotStatus-spindle.speed += 100;
1515 }
1516 break;
Jeff
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Re: [Emc-users] electric current overwrite
Hi Ray. I am thinking about CNC machine that can safe way interact with human (people). That machine must be one with which person can wrestle with without danger to get injure. for example massage ( CNC programmable)machine. That is why i want to use M80 47 code (M80 electric current overwrite, for 47% from maximum level). I think also need M85 code that show for how long overwrite - like 1 -4 minute until machine go into Alarm mode. With code M80 and M85 in place person/human can be safe way deal with CNC programmable machine. Today many medical thing will be given to robots (CNC driven machine) and it will be important part of overall economy. thanks Aram A servo system like you are using runs torque (amps) up or down depending upon how big the difference between commanded and actual position is. That delta is computed in the EMC but is implemented by the motor drive. The tuning of your motor drive is a critical part of what you want. The second part of this is related to the EMC. In the EMC and most other motion control systems I've encountered you normally tune PID and Feed forwards to produce the desired motor characteristics including torque. After that tuning is done properly you can adjust commanded position to control motor torque. But that tuning is a static or constant sort of thing. Some systems watch spindle load and will change tools when the load reaches a certain critical point. My thinking is that you'd need to add in some feed override so that you get good cutting, reduce chatter, or meet a machinist's feel for the cut. EMC, through HAL has adaptive feedrate control that could be hooked up to say a summed or weighted average of following error for the relevant axes. Such a system might do what I imagine that you are asking. Rayh On Sun, 2010-04-18 at 02:00 -0600, a...@conceptmachinery.com wrote: Hi I want to ask about electric current that turns AC servomotor in EMC2. I think EMC2 works like that: Tool move with lowest electric current. When tool is encounter resistance from work part etc. EMC2 increase electric current to overcome that resistance. Increase electric current translates into increase of torque from AC servomotor. Can I control that electric current? How is possible to put overwrite 0% to 100% that electric current? If I set overwrite to 100% than system behaves as it is. If I set overwrite to 0% than system does not move. If I set overwrite to 10% than smallest resistance to tool will stop machine. When resistance reduced than machine move to execute next bock of code. Can it be M code (machine code)? M80 47. (etc) Means 47% electric current overwrite. Thanks Aram -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] electric current overwrite
Hi Ray. I am thinking about CNC machine that can safe way interact with human (people). That machine must be one with which person can wrestle with without danger to get injure. for example massage ( CNC programmable)machine. That is why i want to use M80 47 code (M80 electric current overwrite, for 47% from maximum level). I think also need M85 code that show for how long overwrite - like 1 -4 minute until machine go into Alarm mode. With code M80 and M85 in place person/human can be safe way deal with CNC programmable machine. I forgot about M90 - to program how accurate machine shout be. for example M90 1.500 means that if machine in + /- 1.5 from target place it is OK , and go to the next block. For massage machine accuracy +/- 1.5 will be good enough, i think Today many medical thing will be given to robots (CNC driven machine) and it will be important part of overall economy. thanks Aram A servo system like you are using runs torque (amps) up or down depending upon how big the difference between commanded and actual position is. That delta is computed in the EMC but is implemented by the motor drive. The tuning of your motor drive is a critical part of what you want. The second part of this is related to the EMC. In the EMC and most other motion control systems I've encountered you normally tune PID and Feed forwards to produce the desired motor characteristics including torque. After that tuning is done properly you can adjust commanded position to control motor torque. But that tuning is a static or constant sort of thing. Some systems watch spindle load and will change tools when the load reaches a certain critical point. My thinking is that you'd need to add in some feed override so that you get good cutting, reduce chatter, or meet a machinist's feel for the cut. EMC, through HAL has adaptive feedrate control that could be hooked up to say a summed or weighted average of following error for the relevant axes. Such a system might do what I imagine that you are asking. Rayh On Sun, 2010-04-18 at 02:00 -0600, a...@conceptmachinery.com wrote: Hi I want to ask about electric current that turns AC servomotor in EMC2. I think EMC2 works like that: Tool move with lowest electric current. When tool is encounter resistance from work part etc. EMC2 increase electric current to overcome that resistance. Increase electric current translates into increase of torque from AC servomotor. Can I control that electric current? How is possible to put overwrite 0% to 100% that electric current? If I set overwrite to 100% than system behaves as it is. If I set overwrite to 0% than system does not move. If I set overwrite to 10% than smallest resistance to tool will stop machine. When resistance reduced than machine move to execute next bock of code. Can it be M code (machine code)? M80 47. (etc) Means 47% electric current overwrite. Thanks Aram -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net
Re: [Emc-users] electric current overwrite
Aram, I think what you are talking about is a torque limit, which generally translates into a current limit on a servo drive. Internally, many or most servo drives have a current loop, then a position loop outside of the current loop, and finally a velocity loop on the outside of that.EMC2 usually ties into the servo drive at the velocity loop level via the the plus or minus 10 volt interface. A torque limit would usually be implemented at the drive level since the CNC system does not directly control the servo motor torque. I've implemented torque limits on brushless servo drives via a separate +/- 10 volt input to the servo drive which changed the max current that the drive could output, to implement a torque limit. I'm sure that EMC2 is flexible enough that you could implement an Mcode to output a certain analog value that could be used to limit the torque at the drive level, but it would not be anything standard for EMC2. Dave On 4/18/2010 3:09 PM, a...@conceptmachinery.com wrote: Hi Ray. I am thinking about CNC machine that can safe way interact with human (people). That machine must be one with which person can wrestle with without danger to get injure. for example massage ( CNC programmable)machine. That is why i want to use M80 47 code (M80 electric current overwrite, for 47% from maximum level). I think also need M85 code that show for how long overwrite - like 1 -4 minute until machine go into Alarm mode. With code M80 and M85 in place person/human can be safe way deal with CNC programmable machine. I forgot about M90 - to program how accurate machine shout be. for example M90 1.500 means that if machine in + /- 1.5 from target place it is OK , and go to the next block. For massage machine accuracy +/- 1.5 will be good enough, i think Today many medical thing will be given to robots (CNC driven machine) and it will be important part of overall economy. thanks Aram A servo system like you are using runs torque (amps) up or down depending upon how big the difference between commanded and actual position is. That delta is computed in the EMC but is implemented by the motor drive. The tuning of your motor drive is a critical part of what you want. The second part of this is related to the EMC. In the EMC and most other motion control systems I've encountered you normally tune PID and Feed forwards to produce the desired motor characteristics including torque. After that tuning is done properly you can adjust commanded position to control motor torque. But that tuning is a static or constant sort of thing. Some systems watch spindle load and will change tools when the load reaches a certain critical point. My thinking is that you'd need to add in some feed override so that you get good cutting, reduce chatter, or meet a machinist's feel for the cut. EMC, through HAL has adaptive feedrate control that could be hooked up to say a summed or weighted average of following error for the relevant axes. Such a system might do what I imagine that you are asking. Rayh On Sun, 2010-04-18 at 02:00 -0600, a...@conceptmachinery.com wrote: Hi I want to ask about electric current that turns AC servomotor in EMC2. I think EMC2 works like that: Tool move with lowest electric current. When tool is encounter resistance from work part etc. EMC2 increase electric current to overcome that resistance. Increase electric current translates into increase of torque from AC servomotor. Can I control that electric current? How is possible to put overwrite 0% to 100% that electric current? If I set overwrite to 100% than system behaves as it is. If I set overwrite to 0% than system does not move. If I set overwrite to 10% than smallest resistance to tool will stop machine. When resistance reduced than machine move to execute next bock of code. Can it be M code (machine code)? M80 47. (etc) Means 47% electric current overwrite. Thanks Aram -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list
