TS 2020 Rail Carriage for Toranado, Prusa i3 Attachments

I designed this carriage around the 2020 rail implementation on the Cobblebot so it can mount Prusa i3 attachments and, more specifically, the Toranado 1.1 Precision Geared Extruder found at:
http://www.thingiverse.com/thing:1246951

However, it should be able to be used on any printer built on 2020 rails.

It can be a direct swap for the stock Cobblebot carriage. It is intended to be mounted vertically rather than horizontally but still using the drive belt along the bottom of the rail.