Convenient Spool Holder and filament guide for Prusa i3 mk2

[Edit 25/05/17]
Having just received big 2Kg spool which are 20 cm wide, I added a large version of filament guide. A long threaded rode is then needed for axis.


[Edit 11/05/16]
I made a new axis with smaller diameter that roll smoother on the arms. The file is "Spool Holder v4 - Axis.stl"

[Edit 09/16/16]
I've been requested for the sources of the thing, so I added the 123D Design source file. enjoy !

The full print is possible on a Prusa i3 MK2 with 250 * 210 mm heatbed. For 200*2