I printed out http://www.thingiverse.com/thing:1528382 and realized it was a good simple design but didn't fit my needs. I designed my own version that is similar and made the model using FreeCAD 0.16. Source is included should you need to make adjustments. Used Cura 15.04 to slice.
FilamentGuide0.FCStd | 24.9KB | |
FilamentGuide0.stl | 12.2KB |