Denford Novamill Mach3 conversion

[Miller]

Thanks, so it's not as easy as it looks then. I have couple more diagram, one for the spindle driver and another one where it shows the breaker board's own 5V supply used to form an analog signal. Can we draw some definitive conclusions over the above issues?


Breakout board's own analog signal.






Sprint 400 spindle driver schematics below, pot goes on terminals 1/2/3 on the left.

[EddyCurrent]

Duff drawing removed, please ignore

[Miller]

Great stuff EddyCurrent! I also need a power supply and that's pretty much the hardware done with. The motors are 1.5A for X and Y, and respectively 3A for Z axis. They are all rated at 30VDC, which I take it it's the max voltage?

Anyway, what is the optimum voltage to feed the stepper drivers? I can get a a nice deal on a quality 24-28V 10A power supply.

[JAZZCNC]

No I think Eddy's wrong.

You want to connect to the PWM+10V(pin3) and 0V(gnd) to (Pin2) the 10K resistor is just showing the POT resistance. You are controllong the 0 to 10V signal from PWM on the BOB so don't need it.
But Like John said best check if the Spindle controller 0 is floating or at mains potential.? Putting to Gnd on the BOB could fry it.?

Edit: correction to pins

[EddyCurrent]

No I think Eddy's wrong.

needs a 3rd opinion now.

found this in mean time, it uses 5v with resistor but same idea with 10v, also I'm sure everyone realised that in my earlier post I purposely left out run signals etc.