This can caddy can hold 3 cans per level, but if you print the top, it can hold a recommended 6 cans. 

The way I designed it, you can continue to print the top for even taller stacks of cans. 

Superglue or similar recommended for connecting the top to the bottom.

If you are printing to hold only 6 cans, split the part at 15mm for the top portion for the shortest print time and least filament use. It works fine without most of the model, but for those mad lads that want to print more, it is full height to continue the stack.