Clip-on Printrbot brushless blower turbine fan mount

thingiverse

This mount is designed for a Printrbot+ extruder and can likely fit other Printrbots with wooden laser-cut extruders. It works specifically with a 50mmx15mm high, 3800rpm blower fan purchased from eBay for $4.89. This fan outperforms 40mm PC fans previously used for cooling filament. In the photo, it may seem like the bottom edge of the blower is lower than the extruder nozzle tip, but in reality, it is at least 1mm higher. The design takes inspiration from an existing mount on Thingiverse but aims to be more minimalistic. The mount securely attaches using friction and has small arms that poke through holes in the extruder platform for additional support. If printed in PLA, it may not bend enough to fit both arms into the holes, and one may snap; a drop of cyanoacrylate can fix this issue. This is a first CAD project with room for improvement, and the original .f3d file and an exported STP file are provided for customization. The blower fan link is: http://www.ebay.com/itm/1-PCS-12V-DC-50MM-x-15MM-Turbine-Brushless-Cooling-Blower-Fan-5015S-12V-0-1A-/221041441726?ssPageName=ADME:L:OU:US:3160.