Customisable Parametric Soda Can Stacker

I was a little miffed at not being able to properly stack loose soda cans on top of each other, so designed this solution.

The primary file is an OpenSCAD script that allows you to customise a sleeve to easily and securely stack soda cans on top of each other. Use a single short sleeve to stack single columns of cans or use a matrix to stack groups of six, or whatever number you desire. Great for saving space in the fridge by stacking loose cans on top of each other. Also great for securely stacking loose cans into six packs (or whatever you choose) in your car or caravan fridge or an esky/cooler, and securely stack another six pack on top. The design secures the top stack onto the bottom stack and stops them sliding or tipping off.

The default parameters in OpenSCAD are for standard soda cans (in Australia anyway).
To resize for other cans set the wall thickness, the can diameter, the diameter of the top rim, the height of the bottom shoulder, and how many columns and rows you want.