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« on: July 05, 2010, 06:38:40 PM »
Rene, you can use any ABC axis as the slave. BUT you can only use A as interpolated moves with XY.
SO I would stick with A as your needle control. That way you can control the stitch length with extreme precision AND be able to make coordinated XYZ moves to the next stitch point and that saves time in the cycle. when the XY arrives at the next stitch point the Needle will already be in position to stitch without delay.
You may have to set the MACH kernal freq as fast as your computer will allow. Then set the A stepper motor to 200 steps per 1 rev of the motor. Next go to the axis tunning and set the accel up to as fast as the stepper can move without loosing steps. Next set the vel to the same number to start with.
Now go to the mdi screen and type in an A move say G0 A180 to see how fast it can move 1/2 turn. Next go to the setting screens Top LH side and set the Aaxis value for A axis radius correction to .001 that should make the axis move in feedrate sync with the XY OR is that 999 heck just try both to see which is faster.