Prusa MK3 X-Carriage

The X-Carriage that came with my MK3 has an R Belt Gap that is a little too wide and allows the belt to slip. This updates the bottom block of the belt gap, making it wider to reduce the gap to 1.95mm.

I have updated the original Prusa Scad file and submitted it as a pull-request back to Prusa3d. I have included the STL generated from OpenSCAD as a convenience.

You can see the pull-request here: https://github.com/prusa3d/Original-Prusa-i3/pull/45