Inspired by collindraker's Modular Wrench Organizer ( https://www.thingiverse.com/thing:6631958 ) that I've used in my tools drawer.

I wanted something similar but for my sockets. Found some rail systems here but wanted something more modular like this that I could adapt as I needed.
So a good excuse for my second try at Fusion 360.

Not perfect, already noticed some modeling errors (that for example prevents using filling when printing, but they work anyway). Lesson learned. :D

Kept a place for a magnet on the bottom like collindraker version. I don't use the magnets but I did the same thing in case it's useful for someone.
Though about using the same base size for all versions so they could be mixed together, but for some of the really small sockets, having the bigger base would be a waste of space on the drawer.

Works with both SAE and Metric.
Small = 1/4" drive sockets
Medium = 3/8" drive sockets
Large = 1/2" drive sockets

Didn't added any marks identifying the sockets sizes, because this way is possible to combine repeated sizes, old sets with newer ones, etc, then is just a matter of organizing them by size or whatever works best for you.

Feel free to remix, change, whatever and share...
.step file and .f3d file included.