Modular parts storage system. The design is based on the standard storage you see in most garages. I've made the small bin 25mm and the tall one 50mm. I'm planning on adding to this with a short and tall wide drawer. The drawer handle is the perfect size for labels from a label maker.

The drawer bodies go together with “links” (little interlocking pieces printed seperate). They're super sturdy and don't come apart easily.

The best way to pust them together is to add links ot one shell and then press the new shell onto it while on its back. This will make it so the link doesn't push out.

The links are a pretty tight fit so just take it slow and easy when pushing them together. You can sand them down and superglue together if you want a more permanent fit.