Hi John and everyone,
As you can see, I¡¯ve just added a brute (12nm @ 6amps) of a stepper motor to my mill. The question that I have is what is the easiest / cheapest way of providing a digital drive to it ? I have the stepper motor driver for it, ?all (!) I need is the clever stuff. What I going to do for the moment (because I have the bits in my box) is to use a XR8038 chip to provide a variable frequency, and an old Schnieder baby PLC (Zelio) ?to handle the logic. I would like to be able to handle, backlash , use an encoder or similar to move the mill by small but accurate amounts, have different speeds left and right, mill to a point and return, etc, etc. All nice to have but who¡¯s done what ? And how did it work. I suppose I could look at something PC based, I have a couple of old HP 7900 ultra slimline boxes that would work if they¡¯re fast enough.?
So John D. And friends please what do you suggest ?
Bob
