Launch mechanism
1. Ratchet and lock – we use a child safety lock
2. Hobbyist Springs
3. Rubber stoppers
Launch items
1. Cotton balls for safety
Housing
1. 3D printed. Cover the ends of the launch mechanism for safety (refer to "Resources" section for 3D printing file)
2. 6mm bolt and nut for joint to the support sides.
3. Epoxy glue works better than super glue due to shock
4. Solid base to withstand shock
5. Non-slip material for the base
