Hatchbox Alpha blower fan

Just a new filament cooling solution for the Hatchbox Alpha Delta printer.
The fan shroud is made for a 30mmx.4mm fan. The blower ducts are for
50x15mm blowers. tap holes for a 4-40 screw in fan shroud and Hatchbox
hex top.

This is set up to use a Reprapdiscount hexagon extruder...