WIP: Radial fan 72 mm (Ultimaker electronics replacement)

Designed for using the hub (36 mm) from a 80 mm axial
fan as the motor, and as a replacement for the
electronics fan on the Ultimaker

WORK IN PROGRESS:

• Blades are complete, have been printed & tested for fit.
• Shroud lid and screw mounts still missing.

Tip: the blades are designed to be 2 x 0.4mm nozzle widths wide. If your slicer puts infill in the blades, tune the nozzle size setting a bit up (I used Cura, had to use 0.45mm). This will drastically reduce print time.