RepRap Pro Mini extruder protector

## Who's it for?
Probably only useful for owners of the following design (or similar):
http://www.think3dprint3d.com/Kossel-Mini-3dPrinter-Kit

The Kossel mini kit I got from Think 3d Print 3d uses a RepRap Pro mini extruder on one upright beam with a feed from a filament reel mounted on one of the upper horizontal beams.

## Why's it needed?
When printing the filament was rubbing on the large gear of the extruder due to the tension between the reel and the extruder. This is probably bad for the long term reliability of the extruder (although this design might cause other problems, let me know if you have any)

## How does it help?
This little outrigger mounts to the extruder to ensure that the tension is taken by the body of the extruder rather than the large gear.