Vent register fan

This fan is designed to attach to a 4"x12" vent register and help boost air pressure. It is split into 2 models so you can print it on smaller printers (6"x6" or 150mmx150mm or larger print beds) I would reccomend printing this on a raft or putting ears on the corners to prevent the corners from lifting off the bed.

The fans I used are super quiet so I decided not to put in a potentiometer or a switch to control the fan speed. I have included the freecad file if you want to modify it.

Parts needed:
2x m3x10mm bolts
2x m3 nuts
4x 1/4" X 1/16" neodynium magnets
2x 120mm fans: http://amzn.to/1rfotTp
1x AC Adapter used: http://amzn.to/1rfnX7N
A few small zip ties.