Bear Delta-P fan duct for Dragon hotend rigid mount

I remixed a dragon hotend rigid mount for my Bear extruder. For the extruder body, please see/download Sugarplum's original “alternative_body_untested.stl” .

So that body, plus my alternative cover for delta-P and the original V2 R2 for bear fan duct.

The cover uses heatset brass nuts. M3xD5xL3(or 4), feel free to remix for hex nuts. I just don't like using them.

I also remixed the V2-R2 fan duct to use an m3 square nut, for fun. you don't need it. 

You will need a longer m3 screw for the lower fan attachment screw. I think I went with either 18 or 20mm in length. 

Added a version that uses hex nuts. untested.