I completed the assembly of my cross fire this weekend! (WaHoo!) After following the alignment and set up in Mach 3 - i did a few jogs to get the X and Y axis set. I noticed that the X-axis stepper motor made a noticeable “HISS” sound but moved smoothly in the jog settings. I ran the break in program and all went very smoothly.
I set the break in program to run a second time at at about 2/3 of the way through, the X axis motor stopped and made a LOUD rattle sound. I stopped immediately, reset and clicked go to zero and everything moved fine back to my 0,0 point.
I ran the break in program again for about 30 seconds without any drama, but the X-axis motor is still hissing…