cannon

thingiverse

This cannon will need a spring to operate effectively, it simply fits snugly together and should be assembled neatly. Just a fun toy to knock down toy soldiers, it works well my three-year-old grandson can launch the cannonballs across the entire room with ease. To ensure the handle on the plunger or puller stays in place when you pull back to launch, glue it securely. Print Settings: Printer Brand: Robo 3D Printer Model: R1 ABS + PLA Model Rafts: No Supports: No Resolution: 0.2mm Infill: 20% Notes: I used two parameters - no raft and no supports were necessary.