Cooling Fan Upgrade for Airbrush Compressor (for use in minimal spray cooling system)

This design was developed for use in a minimal spray cooling system on my cnc machine. Airbrush compressors are relatively silent and keep neighbors friendly, but require aircooling to prevent overheating. See also http://www.thingiverse.com/thing:1263973

Tested and working- but still a work in progress -> missing a voltage supply mount and links for daisychaining compressors in a double spray setup.

The design allows for milling with a single 3mm mill and the the compressor stays so coo