An adapter for the Tito Direct drive Extruder. http://www.thingiverse.com/thing:110269. It has been remade to fit a Jhead, but I needed the extra clearance as I am mounting two of these face to face on my Prusa V2. The clearance is needed for the belt. I did have to drill out my x carriage to match this hole pattern and allow for two hot ends to be put back to back. The issues I have seen with mounting these in this manner are: Print and use 2 3mm x 20mm bolts and associated nuts to secure the Jhead. Note that the Jhead center point is not the center of the extruder or the adapter, so ensure you have it aligned correctly. The bolt head should be on the same side as the motor.