Portal Ice Cube Tray Stiffener

I got a Portal Companion Cube ice cube tray from a friend, and LOVE the ice cubes it makes. Buuuut the tray itself is all floppy silicone, which makes filling it and moving it to the freezer a bit of a pain. So, I measured it and designed this stupid simple stiffening tray to put underneath it!

Designed to fit a 220×220mm print bed, like on the Ender 3v2. I think Some Prusa printers have a similar print bed size.

Designed for a 0.4mm extruder, to be printed at “low” quality in Cura, or 0.28mm layer height. Other sizes may have varying results.