Hi all,


I have a problem with my steppers.


When running at a low feed range (~100), then the steppers look to start stalling/oscillating (stepping back and forth irregularly).
I have no problem at higher speeds (e.g. 1000) - at least that's how it looks like.
Single steps are also ok.
I reduced the max acceleration significantly, made a long move, and during this rather long acceleration period the problem occurs for a moment when in this low feed range.


I have DRV8825 drivers, use GRBL as controller and NEMA17 motors.
Anyone a clue where to search for.


Thanks in advance for any tips,
Grt, Patrick