M3D Micro Spool holder attachment

Spool holder arm for Drifterific's M3D Micro Slotted Gopro Mount (base) http://www.thingiverse.com/thing:741364

I made a M3D Micro Filament guide attachment too http://www.thingiverse.com/thing:767834

The last revision is in http://www.thingiverse.com/thing:804897