This is a wall panel version of my “cube coaster type2.” The panels are 200mm and have keys to interlock with each other. 

The keys are included as .STL which can be accessed with the dropdown on the right of the green “download .3MF” button.

I could also make a 150mm version if desired, but scaling the 200mm one and its keys should work fine as well.

The panels also have a hookup on the back for a standard drywall screw.

I have not printed the whole thing yet, but I have printed test of all of the key types and tested the wall hookup.

The .3mf file is tuned for speed at the 0.08 layer height, so comment on any issues.

each model is 89.78g of used filament and a 3.5hr print.