I have the 4th axis wired I just need to do the stepper drive settings and the Mach3 settings. For the stepper drive I can set the micro steps to: 400 800 1600 3200 6400 12800 25600 51200 1000 2000 5000 10000 25000 50000 The stepper motor is a 1.8 so 200 steps per rev. The rotary table is 4 deg per turn so 90:1 Armed with that info what should the drive be set to and what would be the "Steps per" in the motor tuning of the A axis? If I chose say 1000 on the stepper would the setting be (1000*200)*90 = 180,000,000????? or am I totaly off? Once that is set then there is, Velocity?, Acceleration?, G's? Step Pulse? and Dir Pulse? Are there any other setting in Mach3 I need to configure?