[Emc-users] error with joint mode
Hello! I am asking this question here for the 3rd time and I hope that finally someone will answer: EMC2 is switching from world mode to joint mode, if I go from manual control tab to MDI tab. I have EMC 2.4.3.1 version on Lucid, and unfortunately I do not know, how exactly I can replicate this error, because usually, when I go to MDI tab, EMC stays in world mode. Problem is that I have a gantry machine and, this error is breaking the machine, when I try to jog. What can I do about it? What information should I provide? Thank You in advance! Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
On 4 September 2010 13:01, Viesturs Lācis viesturs.la...@gmail.com wrote: EMC2 is switching from world mode to joint mode, if I go from manual control tab to MDI tab. I have EMC 2.4.3.1 version on Lucid, and unfortunately I do not know, how exactly I can replicate this error, because usually, when I go to MDI tab, EMC stays in world mode. Problem is that I have a gantry machine and, this error is breaking the machine, when I try to jog. What can I do about it? I wonder if a workaround would be to set the jog speed to zero when the machine is not in coordinated mode? I am not entirely clear on how the flags change in the various modes, but I think you can find the mode with: motion.coord-mode motion.teleop-mode -- atp -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
On Sat, Sep 4, 2010 at 7:01 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: Hello! I am asking this question here for the 3rd time and I hope that finally someone will answer: EMC2 is switching from world mode to joint mode, if I go from manual control tab to MDI tab. I have EMC 2.4.3.1 version on Lucid, and unfortunately I do not know, how exactly I can replicate this error, because usually, when I go to MDI tab, EMC stays in world mode. Problem is that I have a gantry machine and, this error is breaking the machine, when I try to jog. What can I do about it? What information should I provide? Thank You in advance! Viesturs Viesturs, I have not done this so my answer is theoretical not empirical. My approach would be as follows: set up X1 as a normal axis homing with the index pulse on the X encoder set up X2 as U (in the .ini file) using the encoder feedback from X1 as the movement commands for U (X2). This would cause U (X2) to be a slave to X1. the U axis would also home from the U axis encoder's index pulse I would match the drive system (motors and amps) for both gantry drives and tune them exactly the same. I don't know how much alignment error is permissible in your setup ie - how much X position error is allowed before machine damage - surely there is some I would set up home sequence to home both X and U at the same time. I would set up both home switches to trip as close to the same time as possible with the goal of homing U first. I would adjust each encoder so the index pulse is in the correct radial location for X and U to get your timing correct and minimize axis misalignment. I would use home offset on U to do the alignment adjustment as any motion of X would drive U. It would be possible to use hal to disable homing on X until U is homed to ensure U homes first. This would probably cause the most misalignment and stress on the machine but with the correct encoder adjustment and home switch adjustment this could be greatly minimized. connecting U (X2) as a slave to X1 would cause U to move any time X moved without regard to modes (I think) hope this helps thanks Stuart -- cuatro centavos :) -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
hope this helps thanks Stuart No offence, but it didn't :)) I have joint0 and joint1 explicitly assigned to X axis in my kinematics module. In joint mode each joint (motor) is moved independently, no assignements to any axis are in effect in joint mode. That is why it is called joint mode. I think that my current homing works very well and please accept my apologies, but I do not understand, what does homing have to do with EMC switching to joint mode on its own. Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
homing has nothing to do with the switching - it was just part of the explanation of what I would do I would not set up the kinematics to drive the second X axis motor. I would set it up to follow the first X axis motor. Then the movement mode would make no difference. On Sat, Sep 4, 2010 at 10:04 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: hope this helps thanks Stuart No offence, but it didn't :)) I have joint0 and joint1 explicitly assigned to X axis in my kinematics module. In joint mode each joint (motor) is moved independently, no assignements to any axis are in effect in joint mode. That is why it is called joint mode. I think that my current homing works very well and please accept my apologies, but I do not understand, what does homing have to do with EMC switching to joint mode on its own. Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
Ok, now I got it, but I am convinced that it would not work in joint mode anyway. Please correct me, if I am wrong. Each joint is completely independent in joint mode, AFAIK EMC is built so that assignements between joints and axes are ignored in joint mode, so also Your suggestion with use of U axis would not work, because, as You said, in homing U is homed separately, so it is treated as separate joint in joint mode. There would be an option to modify the LPT cable so that X step and X dir signals go to 2 pins and so that 2 drives receive those signals. But this option automatically excludes the possibility of homing each gantry side separately. But I need separate control of each gantry side so that machine is squared and kept straight each time. Viesturs 2010/9/4 Stuart Stevenson stus...@gmail.com: homing has nothing to do with the switching - it was just part of the explanation of what I would do I would not set up the kinematics to drive the second X axis motor. I would set it up to follow the first X axis motor. Then the movement mode would make no difference. On Sat, Sep 4, 2010 at 10:04 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: hope this helps thanks Stuart No offence, but it didn't :)) I have joint0 and joint1 explicitly assigned to X axis in my kinematics module. In joint mode each joint (motor) is moved independently, no assignements to any axis are in effect in joint mode. That is why it is called joint mode. I think that my current homing works very well and please accept my apologies, but I do not understand, what does homing have to do with EMC switching to joint mode on its own. Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
On Sat, Sep 4, 2010 at 11:16 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: Ok, now I got it, but I am convinced that it would not work in joint mode anyway. Please correct me, if I am wrong. Each joint is completely independent in joint mode, AFAIK EMC is built so that assignements between joints and axes are ignored in joint mode, so also Your suggestion with use of U axis would not work, because, as You said, in homing U is homed separately, so it is treated as separate joint in joint mode. I believe you are correct to say in joint mode each joint is driven independently by EMC2. The kinematics blending does not apply. Correction please if I am incorrect on this. BUT BUT if the driving signal for the U axis drive comes from the X encoder then the joint mode out of EMC2 (motion or interpreter?) would have no effect on the motion of the U axis. You would have no provision for the U axis in your kinematics therefore when the kinematics is not effective the U axis would not be disabled. The U axis is configured to follow the X axis at all times and in all modes. There would be an option to modify the LPT cable so that X step and X dir signals go to 2 pins and so that 2 drives receive those signals. But this option automatically excludes the possibility of homing each gantry side separately. But I need separate control of each gantry side so that machine is squared and kept straight each time. Viesturs 2010/9/4 Stuart Stevenson stus...@gmail.com: homing has nothing to do with the switching - it was just part of the explanation of what I would do I would not set up the kinematics to drive the second X axis motor. I would set it up to follow the first X axis motor. Then the movement mode would make no difference. On Sat, Sep 4, 2010 at 10:04 AM, Viesturs Lācis viesturs.la...@gmail.comwrote: hope this helps thanks Stuart No offence, but it didn't :)) I have joint0 and joint1 explicitly assigned to X axis in my kinematics module. In joint mode each joint (motor) is moved independently, no assignements to any axis are in effect in joint mode. That is why it is called joint mode. I think that my current homing works very well and please accept my apologies, but I do not understand, what does homing have to do with EMC switching to joint mode on its own. Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Two Z-Axes? (IOW, can I motorize the knee)
Jon Elson wrote: Right, so at least with EMC2, the spindle is not a named axis, as the only command it will follow is speed (S) and direction (M02, M04). That should be M03, M04. Jon -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
Some further data would be nice: - start emc from a terminal, use some DEBUG (at least that you get the mode change messages), pastebin a change (manual/mdi) when it happens, one when it doesn't - what GUI are you using? Regards, Alex On 9/4/2010 3:01 PM, Viesturs Lācis wrote: Hello! I am asking this question here for the 3rd time and I hope that finally someone will answer: EMC2 is switching from world mode to joint mode, if I go from manual control tab to MDI tab. I have EMC 2.4.3.1 version on Lucid, and unfortunately I do not know, how exactly I can replicate this error, because usually, when I go to MDI tab, EMC stays in world mode. Problem is that I have a gantry machine and, this error is breaking the machine, when I try to jog. What can I do about it? What information should I provide? Thank You in advance! Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] error with joint mode
2010/9/4 Alex Joni alex.j...@robcon.ro: Some further data would be nice: - start emc from a terminal, use some DEBUG (at least that you get the mode change messages), pastebin a change (manual/mdi) when it happens, one when it doesn't - what GUI are you using? Regards, Alex I am using Axis GUI. My apologies, I am just too unexperienced with Linux, so I did not completely get the DEBUG part. Could You, please, provide some link, where is explained, what and how should I do to get the terminal window show the necessary data? Thanks for Your patience! Viesturs -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] html motion help
Gentemen, I just noticed the html motion help only has motion.tooloffset.w - motion.tooloffset.x - motion.tooloffset.z - the others are not there. Not a big deal as there is not a lot of information about each of them. thanks Stuart -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] tool change
Gentlemen, I am working on the tool change for the Enshu. The spindle and the axes are working. I need to be able to inhibit the tool change sequence if the Z axis is NOT in tool change position. I have been unable to understand how to do this. comments? suggestions? solutions? thanks Stuart -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
On Sat, Sep 04, 2010 at 05:00:17PM -0500, Stuart Stevenson wrote: Gentlemen, I am working on the tool change for the Enshu. The spindle and the axes are working. I need to be able to inhibit the tool change sequence if the Z axis is NOT in tool change position. I have been unable to understand how to do this. comments? suggestions? solutions? thanks Stuart If Z tool change location is Z=0, you can put [EMCIO]TOOL_CHANGE_QUILL_UP=1 to make it always lift up all the way when you do M6. You can also have a [EMCIO]TOOL_CHANGE_POSITION defined, containing all three axes, if you want to move the table to a safe location. On my VMC I have both of these defind, so it goes up all the way and then moves the table so the arm has room to swing. For additional safety I also set up my ladder to require the Z home switch to be activated in order for a tool change to run. This would avoid a smashup if for some reason EMC forgot to move Z up. (This has never happened...) If you don't have your home switch in such a convenient location (and can't move it) maybe you can use a wcomp component on your Z position: http://linuxcnc.org/docs/2.4/html/man/man9/wcomp.9.html There is some information about the various tool change location variables here: http://linuxcnc.org/docs/2.4/html/config_ini_config.html#sub:[EMCIO]-Section -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
thanks - I will check this out On Sat, Sep 4, 2010 at 5:14 PM, Chris Radek ch...@timeguy.com wrote: On Sat, Sep 04, 2010 at 05:00:17PM -0500, Stuart Stevenson wrote: Gentlemen, I am working on the tool change for the Enshu. The spindle and the axes are working. I need to be able to inhibit the tool change sequence if the Z axis is NOT in tool change position. I have been unable to understand how to do this. comments? suggestions? solutions? thanks Stuart If Z tool change location is Z=0, you can put [EMCIO]TOOL_CHANGE_QUILL_UP=1 to make it always lift up all the way when you do M6. You can also have a [EMCIO]TOOL_CHANGE_POSITION defined, containing all three axes, if you want to move the table to a safe location. On my VMC I have both of these defind, so it goes up all the way and then moves the table so the arm has room to swing. For additional safety I also set up my ladder to require the Z home switch to be activated in order for a tool change to run. This would avoid a smashup if for some reason EMC forgot to move Z up. (This has never happened...) If you don't have your home switch in such a convenient location (and can't move it) maybe you can use a wcomp component on your Z position: http://linuxcnc.org/docs/2.4/html/man/man9/wcomp.9.html There is some information about the various tool change location variables here: http://linuxcnc.org/docs/2.4/html/config_ini_config.html#sub:[EMCIO]-Section -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Enshu progress
Gentlemen, here are some more pictures - to prove the Enshu is a complete machine :) http://www.mpm1.com:8080/machines/enshu/pictures/Gallery/IMG_20100829_152131.jpg http://www.mpm1.com:8080/machines/enshu/pictures/Gallery/IMG_20100829_152155.jpg http://www.mpm1.com:8080/machines/enshu/pictures/Gallery/IMG_20100829_152208.jpg http://www.mpm1.com:8080/machines/enshu/pictures/Gallery/IMG_20100829_152223.jpg http://www.mpm1.com:8080/machines/enshu/pictures/Gallery/IMG_20100829_152245.jpg thanks Stuart -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
Chris Radek wrote: For additional safety I also set up my ladder to require the Z home switch to be activated in order for a tool change to run. This would avoid a smashup if for some reason EMC forgot to move Z up. (This has never happened...) I was thinking to link it to a specific value (+/- small variation) of ppmc.0.encoder.02.position (I know Stuart is using the PPMC on this machine) but if the axis somehow got unhomed this would allow toolchange at the wrong position. Requiring the home switch to be tripped is a GREAT idea! Jon -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Enshu progress
Stuart Stevenson wrote: Gentlemen, here are some more pictures - to prove the Enshu is a complete machine :) MMmmm, nice machine. But, darn, too tall for my basement! Jon -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
On Sat, Sep 4, 2010 at 8:29 PM, Jon Elson el...@pico-systems.com wrote: Chris Radek wrote: For additional safety I also set up my ladder to require the Z home switch to be activated in order for a tool change to run. This would avoid a smashup if for some reason EMC forgot to move Z up. (This has never happened...) I was thinking to link it to a specific value (+/- small variation) of ppmc.0.encoder.02.position (I know Stuart is using the PPMC on this machine) but if the axis somehow got unhomed this would allow toolchange at the wrong position. Requiring the home switch to be tripped is a GREAT idea! I think I like your idea for this as the home switch I am using for Y and Z is a long cam instead of a point cam. This would give me too long of a position to have the home switch opened (the home/limit switches are normally closed). This made me scratch my head for a few minutes while trying to set up homing. I looked at the ppmc input and saw it was closed all the time while the machine was no where near the home switch. I will have EMC verify both the machine is homed pin and a position from ppmc. I will home the machine and use an offset to adjust the home/tool change position. I will use that offset value as my check value for verifying the tool change position. The spindle servo amp is a true servo drive. The speed control is +10 volts for max clockwise spindle speed and -10 volts for max counterclockwise spindle speed. It has an encoder on the spindle motor with AB feedback to the amp. It does not have an index pulse (we have not found one). It may have an index pulse out of the spindle motor encoder but it is not wired in. With a two speed gearbox the index pulse would not work for accurate spindle positioning. I will install an encoder on the spindle. Jon -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- dos centavos -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
On Sat, Sep 04, 2010 at 09:27:42PM -0500, Stuart Stevenson wrote: The spindle servo amp is a true servo drive. The speed control is +10 volts for max clockwise spindle speed and -10 volts for max counterclockwise spindle speed. It has an encoder on the spindle motor with AB feedback to the amp. It does not have an index pulse (we have not found one). It may have an index pulse out of the spindle motor encoder but it is not wired in. With a two speed gearbox the index pulse would not work for accurate spindle positioning. I will install an encoder on the spindle. On my machine I hooked one of the A/B channels also to index. For normal tapping you just make one pass anyway, so orientation isn't important. This just gives lots of index pulses, so when you tap it just starts moving right away. A mill is not like a lathe spindle where every thread is multipass and they have to line up. With a proper index you can peck tap, but I have never wanted to do that. Chris -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
On Sat, Sep 04, 2010 at 09:46:35PM -0500, Daniel Goller wrote: We peck tap a lot, so I would love to see emc2 do that. It's easy if your spindle encoder has index G33.1 K.05 Z-.1 G33.1 K.05 Z-.2 G33.1 K.05 Z-.3 -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
Chris Radek wrote: On Sat, Sep 04, 2010 at 09:27:42PM -0500, Stuart Stevenson wrote: The spindle servo amp is a true servo drive. The speed control is +10 volts for max clockwise spindle speed and -10 volts for max counterclockwise spindle speed. It has an encoder on the spindle motor with AB feedback to the amp. It does not have an index pulse (we have not found one). It may have an index pulse out of the spindle motor encoder but it is not wired in. With a two speed gearbox the index pulse would not work for accurate spindle positioning. I will install an encoder on the spindle. On my machine I hooked one of the A/B channels also to index. For normal tapping you just make one pass anyway, so orientation isn't important. This just gives lots of index pulses, so when you tap it just starts moving right away. Some people have to do peck tapping, restarting the tap into the hole and going to a greater depth each pass. Stuart might need that with some of the aerospace alloys he works with. Jon -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] tool change
How far does this reverse before going to new depth? And not only space alloys need it, helps in duplex stainless too. On Sep 4, 2010 9:59 PM, Chris Radek ch...@timeguy.com wrote: On Sat, Sep 04, 2010 at 09:46:35PM -0500, Daniel Goller wrote: We peck tap a lot, so I would love... It's easy if your spindle encoder has index G33.1 K.05 Z-.1 G33.1 K.05 Z-.2 G33.1 K.05 Z-.3 -- This SF.net Dev2Dev... -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
