I have a 9x42 bridgeport with variable speed head and am thinking of converting it to a manual/CNC mill (2 axis) using Mach3 and steppers (for simplicity and cost). I bought some stepper motors a year back but haven't gotten any further. I have some questions:
- Does anyone have drawings of mounting plates for the motors/pulleys?
- Any problems noticed by stepper cogging when used in manual mode?
I am thinking of using the stock lead screws for now and upgrading to precision ballscrews down the road. I am very competent at the electrical controls design so that doesn't bother me at all.
I realize that purchasing an old trak or prototrak would be easier, but one hasn't surfaced and quite frankly I am not sure it is worth the hassle of moving the machines in and out of my shop. I may change my mind down the road but for now I'd like to stick with my machine. I'm estimating another $500 worth of electronics and $1000 for the ballscrews down the line and a running prototrak can go from $3500-$8000 depending on condition. I know that changes depending on if the controls are dead, but I don't see those much.