Y axis is not moving equally, seems to be catching on something. It happens only on the right side. Machine is about a year old. I took the back cover plate off and nothing is wrong with the belt. Wires and connections are tight.
I called support and they do not know of any problems like that.
However, I just found a topic titles the same. May 23.
Question: Could it be from working in a cold garage? I live in the Pacific Northwest. I noticed that after I moved all over the machine, full X, Y, and Z directions, that it did not do it anymore. maybe it is a cold stepper motor.