ebay e3d v6 clone bowden nozzle, with a direct drive for a makergear m2

the nozzle screws into the extruder mount from the bottom. The top of the nozzle is a 1/8" npt female pipe thread. This threads onto the plastic nub of the extruder and helps keep things aligned. The model is parametric and can be modified in inventor should you need to change the nub diameter or design.

The split opening acts as a spring and further supports the nozzle. I had to use a vice to hold the plastic and thread in the heatsink extruder.

It has 40mm fan mounts integrated but