Hi Matt.
I have a few questions for you:
1. How do you have the motor wired? Parallel or series?
2. What kernal speed do you have Mach3 set at and what is your computer speed?
3. 1800 oz.= 112.5 LB. 112.5 LB x 8TPI= 900 pounds of lifting force if the motor is geared 1:1. The head cannot weigh 900 pounds, so 1:1 gearing should lift it easily. Why are you gearing this big slow stepper motor at 3.5 to one? Are you REALLY expecting to be lifting 3,150 pounds of mill head?
CR.
http://crevicereamer.com
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