Bridge Design

Materials:

 

 

Safety:

Instructions:

  1. Using K’nex pieces provided, build a free standing bridge which spans the 12” gap.

Ground Rules:

  1. Base must be at least 13” long
  2. The bridge cannot be wider than 3-½”
  3. The mid-span must be clear to accommodate the mounting hardware shown

The Goal is to maximize ultimate strength!

Hints:

  1. Think about your design before you build.
  2. Observe your failure mode, re-design to strengthen it, then test again.
  3. Think about the orientation of your connectors … they may be the weakest link.

Some Design Ideas: