Haribo 3030 X-axis with belt tensioner and cutouts for couplers

thingiverse

This is the revised x-axis from Prusa with an additional belt tensioner. If you have Haribo and original Prusa motors (with integrated rod), it functions perfectly, but when you use steppers and Z threaded rods connected via couplers, it's impossible to lower the Z axis enough to reach the bed. A possible solution is to raise the bed by a couple of mm, my solution is to modify the x-axis motor mount and idler with cutouts for couplers. The original files were modified by extending the width of part by 2.5 mm, moving the x-axis endstop, and shortening bearing holders on the x-axis to accommodate couplers. The maximum coupler diameter is 25mm. The source files are available on Github: https://github.com/pedobry/Original-Prusa-i3/blob/haribo_3030_couplers