A class set of Circuit Playground's can be unruley.  I was looking for a way to store and account for all of them. Not finding solutions by others I made my own.

Each holds 4, table group size, and can loose friction fit with others. Has a reset area for a label with numbers or other identifier.

I usually go low infill, and haven't had an issue yet.

Print Settings

Printer brand: Prusa

Printer: i3 MK2S

Rafts: No

Supports: No

Resolution: .3

Infill: 10%

Filament brand: HatchBox

Filament color: Red

Filament material: PLA