Thank you Cris,
The drag seems equal.
What do you mean by the coil joint at both ends?
We’ll have a look at the silent drivers.
Update: the Z only freaks out if the location it’s moving to has a combined vector value of over 10 characters (CHAR).
tests:
2640, 99, -100 works. CHAR length: 10
2640, 100, -100 fails. CHAR length: 11
2640, 100, -99 works. CHAR length: 10
2640, 100, -100 fails. CHAR length: 11
999, 100, -100 works. CHAR length: 10
999, 1000, -100 fails. CHAR length: 11
This leads me to believe it is a software problem with the G code.