About this 3D model
These are two adaptor plates to turn a normal Repap with the extruder on the X-carriage into a two hot-end printer. The T shaped part fits where the hotend would. The large part bolts to the x-carrage and can hold two hot-ends. This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/fsba2cAItSM