I bought a Genmitsu Prover XL V2 CNC machine about a year ago and didnt really get to use it, other than just tested it and left it until last week. I now noticed the X motor is moving too little. Like 1/10th the norm. I did check the steps per mm for all axes, and that is not the issue here. Upon checking and doing some physical tests (swapping the motors) I noticed only one motor is not working normal. I do not see any markings on the motor and wold like to know what other motor is a replacement for it. The only thing I know is it is a closed loop stepper motor. If anyone knows a replacement motor I can buy that would be super helpful.
Post some pictures and measurements?
When you swapped, did you swap wiring too? I ask because this particular symptom is more likely to be a wiring problem than a motor problem.
I did swap the motor as well as the cables and sure that the motor is the culprit here.
I removed the X and Z motors and upon swapping just the motors, the “reduced” speed/rotations problem goes along with the motor, so its the motor that has an issue. The manual says it is a “NEMA 23, 76mm, Closed-loop Stepper Motor”.
I am looking now where I can get one of those, as it has only 4 wires for the power and 2 wires for the signal. So far was not able to find one and there is no labels on the motor, making it more difficult for me to find a replacement.
Any help would be appreciated greatly.
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Made an error in my reply, the power is in 2 wires and signal in 4 wires.
Oh, it’s a closed-loop motor. That’s very different.
I’ll repeat: Post some pictures! It might actually help.
sorry about the delay in putting the pictures. Here are pictures I took this afternoon.
Are the DIP switch positions the same between the working and not-working motors? Hmm. I see that you have them set following the manual’s instructions:
I’ve found several similar motors for sale. Here’s the closest I’ve found so far:
But they don’t seem to have the same pinout. It would take cable modification to make them work, I think.
I’d start by flipping the DIP switches a few times and then putting them back the right way, in case the switch is corroded. If it’s really running at 1/10 the distance, that’s a possibility for the problem…
Thanks so much for the details and link.
Yes I have the dip switches exactly same as the working ones (as were set at factory). Also I tried to move all the dip switches to ON and OFF positions 2 times this afternoon and set it back to the way It is in the picture. Maybe I will try to set then on and off a few more times and see if that fixes it. If not, I will buy the ebay one and try to read the pinout and try to figure out from the existing one and hope it works. If not last resort I will have to buy 4 new motors, drivers, USB control board and try to modify the machine without OEM controller and motors. Thanks again for the help.
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