Blower Fan Duct for 50mm Fan

This is a duct for a vertically-mounted 50mm squirrel-cage blower fan. It snaps directly onto the blower. I'm using it for my modified [3DR Simple](http://trains.socha.com/2013/11/building-3dr-simple-delta-printer-part-i.html) 3D printer, but it is pretty generic and could be used for just about anything that needs such a part. It works great for cooling PLA.

Some compatible parts:

* [24v 50mm Squirrel-Cage Blower Fan](http://www.amazon.com/gp/product/B00H8VV0XK)
* [12v 50mm