A simple tray for a fridge to hold soda cans and prevent them from rolling. Designed around an LG Fridge middle drawer but will work with other similar fridge designs. The design is easy to print and fast in PLA. The rails are interchangeable so you can put 2|2, 2|3, or 3|3 for the rails depending on which is selected. just print enough cross bars to join them and they should all fit snug together. 

I used PLA with 0.3mm layer height and support under the crossbars (maybe not needed).