Layer shift caused by the belt being way too loose. 3D printer belt tension seems like a simple thing to deal with — you set the tension and then check it’s good now and then. If it gets ...

[Mark Rehorst] has been busy with his Ultra MegaMax Dominator (UMMD) design for a 3D printer, and one of the many things he learned in the process was how not to design a 3D printed belt clamp. In … ...