PrintrBot Simple Metal Chassis 60mm Fan Mount

Just a simple set of mounts designed to fit underneath my PrintrBot Simple Metal, to allow fans to be mounted to cool the Z/X motors and stepper drivers on the main-board.

UPDATE 09/01/2015: I found that the friction fit was a bit too ambitious, and the mounts popped out during printing. Version 1.1 (60mm PBSM Fan Holder 1.1-vented-dualhole.stl) corrects this by removing 2mm from the mount body, making it a perfect fit for the PBSM. This does mean a drop of hot glue is required to keep it in place, but at least it won't pop out now!