I wanted an X carriage for my Robo3D R1+ so I could mount a titan aero. This mount includes a belt tensioner I designed so you can easily dial in exactly how tight you want that belt. It also has an adjustable X-min endstop trigger and a mount for an IR probe. It also has built in cooling. A blower fan throws air into a duct that directs the air into a narrow stream aimed right under the hotend. It also has a relatively low profile, and all the important bits are on this one piece. I kept it as tightly packed as possible.

NOTE: This version has been superseded by the 9004.

Modify it all you want, but don't sell this. If you do share this or a modified version, please cite your original source.