Quote Originally Posted by Snow_Man View Post
Trying to think through this one because there are so many things it could be... First, I must ask if you moved the 130mm by repertoire or by printer buttons. 2nd are you sure the cube stayed 30x30, there was no accidental clicks or scaling while slicing? 3rd I saw you say you checked the belts and print head doesn't move... Do that include making sure there is no play in the print head mount. Ie belt belt might be tight, but when it moves right, the slide to one side, then the other when it comes back. 4th is there anything in the slicing software that is adding an m92 to your gcode?
Thanks for the further ideas.
To move 130mm, I pressed 13 times on the +10 button in Repetier host.
I checked my slic3r settings, i could not see any additional code in there that would change the dimensions of the part before slicing.
I checked my print head, if I pull hard on it, I can move it by about 0.5mm maybe, but I can't think of anything that would put that kind of force while printing.
Belts are not too tight, i can press on them and that still feels soft.
I searched for M92 in my last gcode file, could not find any.

Very weird issue. I posted a message too in the vendor forum.