@ScRamjet: I also had the issue with the drift on the Y-Axis. I spent a lot of time in trying to fix it by tightening the belt which didn't help. Obviously the belt needs to be tight, but that wasn't the issue. Then I noticed that the problem became even more apparent after I installed a printed geared-pulley on the idler. I finally fixed the issue for good, by installing an aluminum geared-pullby msaglam - General Mendel Topics
@BurtBurt69, did that solve your issue with the drift on the Y-axis? Thanks.by msaglam - General Mendel Topics