On Wed, 06 May 2026 16:35:29 +0200 Robert Schöftner <[email protected]> wrote:
> The PID doesn't do much, I and D gains are 0. It is mostly there to > compensate for jitter. The "feedback" is just the step-count from the > mesa-card internal step pulse generator, no real hardware feedback is > involved. So this will also happen exactly like this if the actual > motors are turned off. Ok, thanks for the info. So not a real PID at work here. > Where does "P=300" come from? Me experimenting and failing to revert back to the defaults. > AFAIK in your case it should be 1000 for a servo period of 1000 > but I would be surprised if that would be the cause of your > problem, most of the heavy lifting should come from the "FF1=1.0" > term. It works now with P=1000 > I have a similar config (with about 5× max speeds) that works, the > other difference apart from P is that i have MAX_OUTPUT=0 and I didn't > define any backlash. Yes, the speeds are very low. Since I don't (yet) have any limit switches and couldn't get the machine to move, I set them low, so I can intervene if things go haywire. Marco _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
