Prusa i3 Bowden mounts

The Prusa i3 is still very new, and lacked a good single-hotend mount. I designed this mount for the Ubis hot end to work with my self-sourced Prusa i3 using 1.75 mm filament. The Ubis hot end has a groove that is mostly compatible with the J-head, at least according to google searches. This means that this mount should be fully compatible with J-head grooves as well. Included are two hot end mount variants, and a cold end bracket.

For the hot end mount, I initially chose the screw hole hot e