I'm putting together my 4X4 Saturn 2. I have the Nema34 Plug and Play electronics and motors. Things are going well and I'm at the point of having it come to life having downloaded Mach 3 and importing the xml file from CNCRouterParts to get me in the ballpark. The X and Y axis are cruising along without issue. The Z is another situation.
When I first tested the axis it would move briefly and then seize and whine. I recognized this from my previous desktop machine to be an overload on the motor (missing steps). I played with the motor settings a bit changing the acceleration and speed but it did not help. Now, no matter what setting I use the motor only whines and does not turn.
I've switched the connections (powered a y motor with the z cable) and it moves. I've also attached the motor to the y cable and it again whines without turning. I did not use any outrageous settings, only going as high as the Y & X settings. Now, it is not possible to spin the motor by hand while the other three do so easily.
I have the rails greased and can turn the ballscrew on the Z by hand when the motor is not connected.
Is it possible to have burned up a motor? My previous experience with Nema 23 motors tells me this is not likely in the very short usage but I'll ask the experts. Any advice on where to go with this?