Ballistic demonstration
thingiverse
This is a Physics Demonstration for Ballistic motion. It is meant as a teaching tool only. Please use caution Do not aim the Device at people animals or windows . Preparation and equipment: 1. A 3d printer and PLA filament 2. A Contraction Spring from a Broken umbrella with a spring 2cm Diameter 6cm long (it’s about 50N/m) usually a part of a long grownup umbrella. 3. M4 bolt 4 cm long and a nut. 4. An IKEA L wrench. 5. 2X M5 bolts (IKEA) 2 cm long. 6. A 20mm ball. 7. A fill and screwdriver.
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