the supply is a 12v transformer, which used to power up some car led.s strips. the multimeter reads 12.1 v. it is the one i use for the enclosure fans.
as i fiddled with the wires, somehow it works now. probably a bad connection from the 12v supply. so Thank you!

I looked a bit online, and the eccomerce webs in my country have plenty of 12v, but no 24 supply. Surely there might be some specialized shops somewhere.

It works like this now. Do I ask for trouble if I don.t use a higher supply, 13.5v and above?

Now on the other side of the bob, for spindle control via mach 3, from what I understand, the gnd pin goes to ACM, the 0-10v to V1, 1st relay pin (5th in order) to DCM, and 2nd relay pin to FOR.

Is this correct?

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