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

thingiverse

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 air-cooling 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 daisy-chaining compressors in a double spray setup. The design allows for milling with a single 3mm mill, and the compressor stays so cool that a 3D printable version would have been fine (tested to work over a continuous 2h session). The first iteration had a smaller fan which has since been replaced by the one seen in the first picture. Build Instructions: Acquire 1.5mm aluminum sheets. After milling the holes, rectangular areas may be milled down (by 0.75mm) for easy bending. Mill the outer contours and, after deburring, fold the sheet as depicted. Mount a fan using locknuts. The current working design uses a 12V 2.5 Watt PAPST Fan with 60mm x 60mm outer dimensions and 50x50 mm mounting points. The mount attaches firmly to the compressor via loosened screws from the compressor chamber/heatshield itself (these hold the compressor together).