Mendel Max Y Belt drive alternative

Alternative Y Motor mount and Belt tention.
for use with professional Belt pulley (Rolle.scad)
I haven't printed the pulley, as i use professional ones made of
aluminum with ball bearings.
If you find a closef belt that fits into your Mendel Max you should use the 'Umlenkrolle Aussen Adjustable.scad' for belt tention adjustment.
if you use a open belt you can print a second 'Umlenkrolle Aussen.scad'