Modular base plate for glass vials

This design is a modular base plate for glass vials. I use it to make sure some chemicals stay ordered when moving around and to organize them in a fridge.
The plates have different numbers of slots and can be assembled together using the "join" parts and a little "persuasion".
I include 3 sizes adapted for most of the vials i commonly use but you can rescale it easily if need be. If you do so it is better to rescale a smaller design to a bigger size than a bigger design to a smaller size as they are made to print with only two 0.4mm walls. Also keep in mind that glass vials have fairly large dimensional variations (i had up to 0.4 mm on 25mm vials)