Simple boxes which are very handy while working with different projects, especially with 3D printed models needed to assemble with screws. I found this boxes especially handy while was working on hotend assembling. All sections made with small rises to be comfortable to get needed parts from inside. And now they are stackable!

Updated version in 3 sizes - S/M/L

Three sizes with different configurations:

S - height 8.5. Small trays are handy while you are doing projects with small amount of screws/inserts/bolt and etc.:

50*100 - 1 slot / 2 slots;

50*80 - 1 slot / 2 slots.

M - height 8.5. Medium trays are handy while you are doing projects with medium amount of screws/inserts/bolt and etc. More configuration of slots.:

100*100 - 1 slot / 2 slots / 3 slots;

100*120 - 1 slot / 2 slots / 3 slots;

100*150 - 1 slot / 2 slots / 3 slots / 4 slots.

L - under construction

Feel free to use and mix and post your makes!