Have not seen the done to many Warco milling machines and have wanted to do this for a while. After I decided to replace the Nema 23 on the Z axis with a Nema 34 stepper motor I then had a spare Nema 23 and Controller for the Y axis project.

So, you need a Name 23 Stepper Motor, I am using the 3Nm one and the controller bought from Stepperonline –HERE–

I already have a power supply, 48v so going to use that. You will also need a PWM like this –HERE–, a change over relay, a double pole double throw on/off/on switch to control forward and reverse of the motor, a on/off power switch, a LED light (Optional) and some sort of limit switch.

I decided to go with 1 to 1 ratio pulleys and belt which I bought from CNC4U. So everything would fit I bought the 10mm pulleys.

Here is where I am up to today, I am awaiting the PWM and a replacement belt and the one I got was too short (Schoolboy error)

I have raised mine for the same reason, stout wooden blocks under neath raises it about 5"

Its done via the PWM

As this is my second stepper power feed, i know what i am doing

this is the wiring

The push switches on the frequency generator board were removed and wires soldered to the points shown.
A double pole double throw switch with centre off was used to control the direction and on/off. Shown top right.
A relay was necessary because to start the motor the switch wires are opened not closed as expected.

Edited By petro1head on 14/04/2023 15:21:00

Edited By petro1head on 14/04/2023 21:38:25

Wohoo, just finished the wiring and done a quick test, it works

Fished control unit wiring

All i need to do is tidy up the external cables etc

Yes DRO fitted x, y and z.

No, i dont dissengauge the handwheel

Edited By petro1head on 12/05/2023 14:52:29