Jerking 4th axis
23 Nov 2023 00:22 #286284
by nickcnc
Jerking 4th axis was created by nickcnc
Hello! Please help me solve the problem. I'm assembling a machine with 7i96S and stepper motors first time. This code moves the A rotary axis smoothly when there is only A in one line. But for some reason the A jumps to the next line on those lines where it stands together with linear coordinates, for example Z. I tried G64 in different ways and changed the accelerations, it doesn't help. This file works well on the same machine with Mach with a different controller.
A16.0362
A17.7356
A19.4997
A21.2732
Z3.4199 A23.0548
A24.8434
Z3.4201 A26.6377
A28.4363
A30.2376
A32.0400
A33.8418
A35.6410
A37.4500
A39.2592
Z3.4203 A41.0591
Z3.4202 A42.8470
A44.6201
A46.3754
A48.1100
A16.0362
A17.7356
A19.4997
A21.2732
Z3.4199 A23.0548
A24.8434
Z3.4201 A26.6377
A28.4363
A30.2376
A32.0400
A33.8418
A35.6410
A37.4500
A39.2592
Z3.4203 A41.0591
Z3.4202 A42.8470
A44.6201
A46.3754
A48.1100
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23 Nov 2023 00:50 #286290
by Hakan
Replied by Hakan on topic Jerking 4th axis
Check forum.linuxcnc.org/38-general-linuxcnc-q...88-feed-rate-priorit sounds like the same issue. I also had that issue and rewrote the cam processor to use inverse time feed.
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23 Nov 2023 02:46 #286294
by nickcnc
Replied by nickcnc on topic Jerking 4th axis
Thanks for the help Hakan! The option with G93 would probably solve the problem. But now there are two other problems. The first is that nc-files are quite complex, they were made a long time ago with a regular F and have been used for many years. The second thing is that you need to change a post processor in the CAM for new codes.
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23 Nov 2023 05:59 #286301
by scotth
Replied by scotth on topic Jerking 4th axis
www.ganotechnologies.com/cnc/rapidrotary/
This should take your old file and repost the output.
This should take your old file and repost the output.
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