Mounting Bracket for Azteeg X1 on Prusa Mendel

This bracket allows the Azteeg X1 controller to be mounted in the bottom frame of the Prusa Mendel iteration 2. This version is for a Prusa with the z motor mounted in the bottom instead of the top. The SCAD file is parametric so it can easily be edited for a standard Prusa or for a Sanguinololu controller. It includes mounting holes for future cooling fan bracket.