A series of neatly nestable storage bins with a variety of dividers.
Each size Unit.Bin can have different dividers either permanently installed by merging the divider in your slicer, or print them flat and use them as separate removable part. There are three divider designs, two are cut down so you can get your fingers around whatever you decide to store in these.
Unit.Bins are a collection of storage trays that conveniently nest and stack together. The outside edges of one unit are 45mm x 45mm. The regular height bins are 12mm tall, a full height bin is 24mm tall.
You can put two 1x1 Unit.Bins on top of a 1x2 Unit.Bin and it neatly stacks. Put a full height 1x2 Unit.Bin next to the two regular height and stack more on top of all that. Are you starting to see how it works? The smaller sizes all add up to the larger sizes, so they all fit together. If the Thing says Unit.Bin, it follows the design rules for fitting with other Unit.Bins.
Here are links to other sizes:
https://www.thingiverse.com/thing:3055088 (1x1 fh)
https://www.thingiverse.com/thing:3055094 (1x2 fh)
https://www.thingiverse.com/thing:3055112 (2x2 fh)
https://www.thingiverse.com/thing:3055120 (1x4 fh)
notes on file names:
nxm = the number of units 1x2 is 45mm x 90mm
fh = full heigh 24mm tall. If it isn't labeled fh, it is regular height 12mm
0div, 1div, 3div = the number of dividers that can be installed
Cut Divider = a single cutout to allow room to grab your stored object
Curved Divider = a long curve to allow even better access to your objects
Plain Divider = no cutout, your objects won't roll out, but good luck getting your fingers in there