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Any shortcomings you need a hand working through?

havenofish , That is mm. It happens on Y and Z. I'm not playing with the Xx gantry axis at this point.

Darium, It is within the amplifier as far as I can see. LinuxCNC is sending the correct target position, and the machine is actually where it says it is, but it MAINTAINS a random (small) offset I can jog it around with the pendant and the offset stays the same. I can manually force the servo back and forth a bit, and it returns to the same incorrect position.

Upload pictures of wiring here on the forum so we can have a look.

You have tandem joints/axis so only after homing it will show axis.

Sorry for this newbie question: How do i change the "Manual Control" tab to show the Axis instead of the joints?
Tried in [DISPLAY] GEOMETRY = XYZ, but that didnt work.
 
 

Upload the hal and ini files here so we can have a look

Try to measure potential difference bethween the pc ground and stepper drivers ground, if this card not have optical isolation on the step-dir signals, its cause problems.

Ini file, from this under joint 4
STEP_SCALE = 3.9307 # 1414.752 steps / 360° for 10-tool carousel
to this
STEP_SCALE = 3.9307

Thanks for your help. That XXYZ made a huge difference.

JT