E3D hotend groovemount for i3 with RepRapPro miniextruder

This is a part that mounts on the 30mm spaced holes on your Prusa i3 x-carriage (https://github.com/josefprusa/Prusa3/blob/master/single_plate/src/x-carriage.scad). It has a two-part groovemount hole sized to firmly grip an E3D hotend (http://www.e3d-online.com/). It has holes to bolt on a RepRapPro miniextruder (http://www.thingiverse.com/thing:44291).

Together, they seem to work pretty well!

You need 2x 20mm bolts for the groovemount hotend clamp, with nuts. You need some bolts with s