The ultimate project to illustrate the power of triangles! The challenge is to build a bridge that can hold the most weight and is at least 3 craft sticks long.
The truss bridge is comprised of repeating triangles, and the shape of the bridge itself forms a triangular prism, resulting in an ultra-strong structure.
Tools and Materials
Tips and Troubleshooting
If the bridge is breaking before holding 20lbs, then...
- Emphasize good gluing techniques. How the bridge is built is just as important as the truss pattern.
- Overlap weak areas with more craft sticks.
- Add more trusses.
- Make sure the rope is being woven through the bridge so it hangs from 4 points. Hanging the rope from just 2 points will only test the strength of the craft sticks.
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