Wood reel and reel plastic support for SmartrapCore 3D printer box

This is my first accessory to improve the SmartrapCore (3D printer from Smartfriendz). Here the 3D SmartrapCore:
http://www.thingiverse.com/thing:651117

I built a wood reel (to spare my filament instead of a printed reel that would cost more than 15€ with plastic only, here wood, nuts and bolts, metal squares and plastic support cost only 7€).

I was inspired in this idea by this:
http://www.thingiverse.com/thing:10219
But I built it with wood!

This reel is designed for filo3D filament (bought without a furnished reel, bulk filament) (inside diameter of the reel: 19cm, outside: 30cm)

I designed a piece to attach this reel: a plastic support. It is intended to be uses with a M5 (5mm diameter) bolt and there is two holes for an eventual attachment to the box (I did not attach , plugging in the box is enough for solidity and stability).

This plastic support is the STL file delivered here.

I used too this usefull element to guide the filament for the turning around the 3D box:
http://www.thingiverse.com/thing:755862