Printrbot filament guide and fan mount

Printrbot filament guide and fan mount for a warm extruder stepper moter!
I used this 4cm fan: http://www.dealextreme.com/p/cooling-fan-for-vga-video-display-card-4cm-4cm-15564
You have to drill the holes for the fan yourself - for perfect fan placement ;)
Fillement 1,75cm