Spool storage box (upcycling) - 40 compartments

Here is a way to re-use your empty spools (no hardware required) - I made this one on my wife's request, to store diamonds (for diamond painting). I have included multiple options, and this includes the following parts:

DRAWERS:
- BIG (1 layer per spool)
- SMALL (2 layers per spool)
- SMALL with holes (2 layers - to see the boxes labels)

BOXES:
- BIG 1 & 2 to fit into the SMALL drawer
- SMALL 1 & 2 (2 layers per SMALL drawer)
- SMALL 1 & 2 with grooves (to sort the diamonds directly)

Spool dimensions (quite standard):
- External diameter: 20cm
- Max internal diameter: 9.5cm (mine was 8cm on the pics)
- Spool height (gap for the drawer): 5.6cm

If your spool height is different, you can always z re-size the drawers to fit!

ASSEMBLY:
- Drill 4x 2mm holes in the top of bottom of the spool for each hinge (using the guide - stl included) - make sure the top and bottom holes are perfectly aligned!
- Slide through the hole and drawers a piece of 1.75mm filament
- Melt both sides with a lighter (to prevent it from getting out)

Nice to have: I have also added holes to include magnets on the drawers (size are 3mm diameter x 1.4mm width)

This STL is for personal use only (contact me for commercial license). Do not copy or redistribute it.

Printed in 0.3mm layer height - I am sure 0.2mm would work just as fine.

No raft, not support, no brim.