Print on the back side. The bridged length is about 44m which works fine on most printers without support.
2024-02-06: Removed the fillets on the back for better bed adhesion
2024-02-08: Added more models
2024-03-15: Added split models with flat dowel connection
The author remixed this model.
The cutouts in the walls save about 100g to 150g of filament.