GT2 belt and pulley mod for Mendel90 by nopheadThis mod is for the GT2 belt and without an belt twist. -- UPDATE 09.08.2013 ---- Added tensioner to y axis for dibond model You need the following vitamins: INSTRUCTIONS: X-axis mod: Y-axis mod: No firmware changes needed. I recognized some clack sounds while printing from the GT2 pulleys. These sounds came from the sligtly smaller diameter of the cap screws compared to the pulleys. I fixed this temporary with a little bit of painter tape arount the cap screws where the pulley and the bearings are. Better for now but I'll upgrade to a 8mm rod with two snap rings on both sides. If you just wan't an upgrade to the GT2 belt but with a twist in the belt you need only 2 GT2 pulleys with 5m bore, the GT2 belts and the GT2 belt clamps.