SmartrapCore Spool holder

A very simple device to hold your filament spool : drill an 8mm hole in one of your SmartrapCore's wall, insert a M8 x 100 bolt, put the 608ZZ bearings inside the printed parts (it's the exact same piece on both sides, just print it twice), hold the whole thing with washers and nuts, and lets roll (and not rock), baby! :)
The cone shape should adjust to most spools sizes. I use it at home with a 75mm wide spool (60mm diameter central hole) and it works really fine.

Update (10/15/2015) : added an axis support that can be easily installed on the top of the box. This way, you won't have to drill a hole in the printer's box, and then you can also put this spool holder wherever you want on the box (it's completely symetrical, so it can go on the other side, you don't need to print another one), which can be pretty useful if you want to try dual extrusion (like with my twin head support : http://www.thingiverse.com/thing:995640 ;)).

Update (03/02/2016) : simply added the zipped Blen