C-Beam carriage

Designed this carriage for a C-Beam extrusion. It pairs with [ "C beam end with support for a belt tensioner"](https://www.thingiverse.com/thing:4327984) and combines the carriage with the belt holder.

This is rock solid if your printer can print accurately. I can stand on this bed and it will not collapse the wheels and has zero side to size rock.

The dimensions were designed for a 230x230 plate to work well - it is slightly longer in the Y axis than the X axis for additional stablility. I recommend printing this first before drilling holes in your aluminium plate to account for any inaccuracies in your axis calibration (which may lead to several millimetres of error)