28 mm Vial Rack

I needed a rack to organize vials in which I like to keep prepared daily frozen food rations for my aquarium.

I used 28 mm holes because I use stool sample vials from pharmacy and I've noticed that they all fit perfectly in this size. I don't know if its a standard or coincidence, I live in Poland BTW.

Design is modular, so you can combine the 1x1 part to make any combination.

Its designed to print on side without supports, your printer must be able to make 25 mm bridges.