CNC plotter 1800 x 80cm, first build, questions and queries.

[borntofight00]

This is my first forum post so first of all, hello everyone! I am at the stage of building the first cnc plotter, quite large and heavy as for the first machine (about 1.8m x 0.8m) and I would be very grateful if you could help me with electronics. Quite a long time ago I was able to buy second-hand electronics, theoretically complete set, after amateur coversion of a mini milling machine, although I have problems with it and I hope that this is my lack of knowledge. I would love to use as many components already bought as possible. As a bonus for purchase, I was given a Sieg X1 mini mill and an old computer that turned out to include Mach3 with the license of the previous owner so as a whole, probably a nice purchase despite everything is dusty and generally messy inside .. but to the point:

Breakout board - CNC4PC model C1
Drivers - MSD542 x4
Motors - FL60STH86-3008 BF x1 + two similar, unfortunately without any stickers so I will buy 3 more similar to FL.
Transformer and the rest in the attached diagram that I re-drawn from what I got, this is not my project and will be redone.

1. The motors do not spin despite the fact that Mach software shows movement using the arrows on the keyboard. The motor is locked, it cannot be turned. There are diodes on the breakout board, it seems to me dedicated to outputs, not activated, only the 'outputs status' diode is on, what should I check step by step to verify if the board is ok?

2. How to check if the drivers are ok? The voltage is fine, 42V on each of them. The voltage between A + and A- and B + and B- in the case of one motor connected is 1.7V, in the other 1.4V. Where there is no motor connected, 42V between A + and A-. Is this correct?

I would have more questions, but for now, the most important is to verify whether the board and drivers are in full working order and configured with Mach3. The attached photos show Mach3 settings, previously configured with current set up. Thanks in advance for your help, I will post a full 3D project and a schematic after completing the project here. I’ll post more details about my design soon.

Regards!