Some developer went to the trouble to add the very nice FOAM mode to axis, which looks great. There just seems to be some problem with kinematics that won't drive the second pair of joints. I've tried changing to joints 6 and 7 instead of 2 and 3 for the U and V axes, but that didn't work. There is either missing information in the docs for making this work, or a bug, not sure which yet. I'll keep reading source code and experimenting.
-- Ralph ________________________________________ From: Todd Zuercher [[email protected]] Sent: Thursday, July 1, 2021 2:08 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] four axis foam cutter 2.8 config CAUTION: This email originated from outside the Walla Walla University email system. I don't think there are a whole lot of foam cutters out there period. But with my very limited knowledge of the subject, I would have thought the JA version would be better suited for it. It is possible that some of the workarounds that had to be done to make the wire cutter work with the earlier versions are no longer needed and causing problems in your new config. But I really have no idea, what the problem(s) could be. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: Ralph Stirling <[email protected]> Sent: Thursday, July 01, 2021 3:25 PM To: [email protected] Subject: Re: [Emc-users] four axis foam cutter 2.8 config [EXTERNAL EMAIL] Be sure links are safe. I'm getting the impression that I'm the first one to actually try post-2.7 linuxcnc on 4-axis foam cutter hardware. I've set up 2.9-pre0 from git so I can start poking in the source code. 2.9-pre0 behaves the same way. I have verified that axis.x.pos-cmd and joint.0.pos-cmd both change as expected, but axis.y.pos-cmd changes while joint.2.pos-cmd does not. So something is broken in joint-axis code for the XY;UV geometry. -- Ralph ________________________________________ From: Ralph Stirling Sent: Wednesday, June 30, 2021 5:20 PM To: [email protected] Subject: four axis foam cutter 2.8 config I upgraded our 4-axis hotwire foam cutter to 2.8 recently, and have not been able to get it running again yet. The auto conversion doesn't seem to be quite sufficient for foam cutter configurations. I now have homing on all four axes working (XY;UV), but once homing is finished I can't jog U or V. The backplot shows motion, but the axes don't move. X and Y jog properly. The U and V (and joint 2 and 3) sections are copied directly from X/0 and Y/1 with only the axis and joint designation changing. Does anybody have a functioning 2.8 foam cutter configuration I could look at? Thanks, -- Ralph _______________________________________________ Emc-users mailing list [email protected] https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C395e614813364ec22fb008d93cd67298%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637607714016967745%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=DPF3h8NTz7wqMjFxkYpCpJaAzfTuvOTwDKAjEedJUuk%3D&reserved=0 _______________________________________________ Emc-users mailing list [email protected] https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C395e614813364ec22fb008d93cd67298%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637607714016967745%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=DPF3h8NTz7wqMjFxkYpCpJaAzfTuvOTwDKAjEedJUuk%3D&reserved=0 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
