Quotealessandro01 Hello guys, I'm Italian and I have a problem with my printer. It stamp so bad I attach an image can you help me? Thanks Ciao! What version of Geeetech you? The causes of the problem may be different, they may be steel bars that do not flow only in the linear bearings but also affect the structure so you have to enlarge the holes. It could also be a misalignment in the z axis.by Monzilla - Prusa i3 and variants