Spool drawer organizer

This is a drawer part to fit 3d Prima´s filamentspool "Prima select value" size 1.0 kg. The basic idea is from Anatof excellent http://www.thingiverse.com/thing:2009550.

I designed two sizes for mixing them as you wish, either 4 drawers (70 mm) or 8 drawers (34 mm) or a mix on the same spool.

EDIT: Added STL:s with walls inside the drawer.