About this 3D model

Note - Newer 4.1 version uploaded Sept 21, 2017 Mostly very slight changes for structure but also added screws/nuts as I found over time the printed plastics all seem to stretch or loosen up and start to wobble and even release the bearing from the carriage. takes a long time (almost a year) but still prefer to prevent it. so I redesigned and added the nuts/bolts an updated version of the X carriage for Max Micron (and other Prusa i3's) with an adjustable end stop setup Carriage heaight has been mildly adjusted to get a straighter/level belt path when used with the simple belt holder...