hi all, I have an old timer who wants to have 1 axis of his monoset transverse back and forth across a grinding wheel, he has a small 30v dc planetary gear motor and what we are in need of is some suggestions on how to power it (forward & reverse) to toggle limit switches at each end of the axis, i.e ping pong back and forth across the grinding wheel so that he does not have to stand for prolonged periods. He is thinking a ac outlet timer for the power supply to set duration of pass’s (i.e number of pass’s based on speed he sets with the pot.)

any suggestions/links would be greatly appreciated for a “inexpensive” driver board (with fwd/rev inputs that can be toggled by the limit switches and with input for a pot to set speed, and suggestion for an power supply would also be appreciated.

Regards, Joe