Dual hot-end adaptor.

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