Design a Robotic Arm

Design a robotic arm that can move a marble, a straw, and a coin from the table into a cup without using your hands.

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Inspiration Video

Suggested Materials

Recommended
  • tape
  • popsicle sticks
  • rubber bands
  • string
  • dowels or skewers
  • straws
  • pipe cleaners
  • paper clips or brass fasteners
Testing Station
  • coins
  • marbles
  • cup
  • straws

Difficulty Level

1
2
3

This design challenge may require moderate motor skills, understanding of some abstract concepts, or uncommon materials to build.

This is the difficulty level for a typical 4th grade classroom. Modify as needed for other age groups.

Resources

This design challenge has downloadable resources available.
Mentors and parents with access to this design challenge can download resources.