@biff-hansen said in Duet 3 6HC - Homing Dual Z:
Since we're not separating Z & U, Any ideas on how I deal with small differences in the triggering of Z & U to correct slight mounting errors?
The following might work (not tested):
Home both motors Use M584 to map Z to just one motor Command a short Z move to square up the motors Use M584 to map Z back to both motors If M584 results in the Z axis being flagged as not homed, use G92 Zxxx to tell RRF where the Z axis is