Printrbot Simple Filament Guide

Filament guide for the Pritnrbot Simple (or any 3d printer with 8mm smooth rods)

Just print it and snap it down on top of the smooth rods: filament just gets fed through the loop.

I personally use two of them to help straighten the filament before it reaches the extruder.

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ANY problems just give me a shout in the comments!

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--v2-3 should have fixed that scaling error (hopefully!)
--v2-4 fixed a daft error. If I don't tell you about it you won't notice. I also changed t