OB1.4 End Stop Mounts for prusa mod (45mm)

For use with:
http://www.thingiverse.com/thing:41967
and this mod:
http://www.thingiverse.com/thing:302416

X/Y bases are just a collection of:
http://www.thingiverse.com/thing:273711
http://www.thingiverse.com/thing:276229