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

Inspired by http://www.thingiverse.com/thing:33494

Final uploads: 27 January 2014
(If you downloaded before that date you don't have the latest and greatest revisions.)

What they are...
Two snap-on fan ducts for the BFB 3D Touch and BFB 3000 printer. (Not tested for clearances on the BFB 3000.) One duct fits a single fan and the other fits two side-by-side fans. On a 3-head 3D Touch there are three 60mm fans, two on the front of the carriage and one on the back. I'm not sure if