Q1. Was it the C10 breakout board from CNC4PC that you used?
Q2. Please don't laugh, but what is the "Charge Pump" for? Is that to help get the lathe chuck going?
I have 5 wires coming back from the steppers which I am sure are original. They are Green Black White Brown going to the stepper driver boards and a separate red going to ?.
From the stepper driver boards there are 4 wires going back to the main board. Black, Brown, Orange, Red.
Q3. Which wire goes to the corresponding connections on the proposed new breakout board?
Q4. Will the original PUMA DC spindle board and interface board be able to connect to the proposed new breakout board?
Having seen what you achieved on the lathe, I am quite hopeful.
Q1-Yes, If memory serves it was a C10
Q2-A charge pump is a device to enable the C10 once Mach3 software is on line. Mach can output a signal to let the hardware know the software is on line and in control before enabling the circuitry
Q3- That depends, but your first challenge if you are going to use the original X,Y,Z stepper driver boards is finding out 3 pins, Ground, Step, and direction. Once you know those you can wire them to your breakout board.
Q4-You will need to try and find the manual for the spindle board. It likely uses a 0-10VDC input to control speed. You will need a C6 Spindle control board to connect to the C10 and then its analog output to your spindle controller.
If this is your first conversion, I would recommend buying the Gecko G540. It is a 4 axis I/O, Controller and stepper driver. Then the only real board you would need is the C6 to control your spindle drive. I used the G540 on my Emco CNC lathe conversions and HIGHLY recommend them for these sorts of applications.