BFB 3D Touch & 3000 Snap-on Fan Ducts - Simple Design

thingiverse

Inspired by http://www.thingiverse.com/thing:33494, the upload date is 27 January 2014, so ensure you've downloaded the latest version. These fan ducts are designed for BFB 3D Touch and BFB 3000 printers. The single duct fits a single fan while the other accommodates two side-by-side fans. For a 3-head 3D Touch, there are three 60mm fans - two on the front and one at the back. Although uncertain about models with one or two heads, the design covers both scenarios. The goal was to create snap-on ducts that print without support, which was achieved through some trial and error. With 1mm thick walls, they don't consume much material. Initially, snap-on deflectors were added at outlets, but after testing, it was decided against. The files include .stl and .sldprt formats with an option to print both ducts simultaneously. To use them, simply print and snap 'em on. They fit via two small bumps on the top corners mating with fan screw holes, with a tab holding them in place against the fan body bottom. The effect of these ducts on printing is yet to be determined, but they should theoretically increase part cooling, reducing warping.