[wmgeorge]

Ok so I should try to switch PSU to maybe a 36V? This is what info I have about the motors

https://ibb.co/7CycQ6r

I guess I am not smart enough to figure the voltage out but if your limiting the amps I don't see how it could damage the motors using a 36 volts. But you need to look at the amp rating of the PS and get one designed for CNC work. It may be a DC power supply but your stepper drivers are outputting pulses. Here is a screen shot of a stepper motor being operated at different voltages. FYI.

[tangi]

I guess I am not smart enough to figure the voltage out but if your limiting the amps I don't see how it could damage the motors using a 36 volts. But you need to look at the amp rating of the PS and get one designed for CNC work. It may be a DC power supply but your stepper drivers are outputting pulses. Here is a screen shot of a stepper motor being operated at different voltages. FYI.

Thank you very much for the chart wmgeorge. I am not smart enough neither to figure it out. The Y-axis is set to a very low velocity in Mach3 to have some torque and is running as I remember 1/8 steps. I tried back and forth, and this was the best results as I could get. But sadly I cannot use, I think 1/3 of the possible machine area of the CNC, because the Y-axis isn't strong enough to run to the bottom of the axis.

[skrubol]

I guess I am not smart enough to figure the voltage out but if your limiting the amps I don't see how it could damage the motors using a 36 volts. But you need to look at the amp rating of the PS and get one designed for CNC work. It may be a DC power supply but your stepper drivers are outputting pulses. Here is a screen shot of a stepper motor being operated at different voltages. FYI.

36v shouldn't damage the steppers, but it can certainly damage the drivers. Looks like the PoStep25-32 are only rated for up to 30v.