Hi Y’all,
Our team recently purchased a Carbide3D Shapeoko XXL Pro and have been in the process of assembling the machine. After full assembly, there were several problems, including the limit switches wired incorrectly at the factory (two of these, I fixed them by redoing the Molex connectors) and more importantly, a stepper motor path that appears to be under-powered. The X-axis motor shudders when activated and can be easily stopped by hand. I have removed the motor from the belts, swapped motors, and traced the various wiring harnesses and connectors, but none of these is the cause. Plugging the motor directly into the X-axis port on the GRBL control board (see photo) gives the same result. My guess is that there is not sufficient power being sent to the specific motor port, as the other three ports (Y1, Y2, and Z) run motors smoothly. I am not an expert on stepper motors despite my recent efforts to understand their function better. Anyone out there have an idea as to what is going on? I have sent several emails with videos and photos to Carbide3D since Saturday morning but have yet to hear back from them, and I have never been able to talk to a person by calling them (either sales or support, since early December). Thanks.
Mr. N
We just fixed an issue with similar symptoms on our Velox. Turned out to be a loose wire. We reseated and it functioned normally.
Can’t hurt to check.
Check resistance on the two phases to look for bad connections…
It’s Also possible the current is set too low on that axis.
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