Printrbot Simple Metal - Filament Guide Fits Under Aluminum Handle

WARNING: This does in fact restrict the maximum Z height to about ~135mm so I redesigned it as this http://www.thingiverse.com/thing:636202 I'm leaving this design up though in case people still want to try it or want to modify it.

I bought my Printrbot Simple Metal during the Christmas sale and it came bundled with a spiffy aluminum handle. The problem is that all of the designs for filament guides use the top of the Z rods but due to the handle I couldn't use those designs so I made my own!