60415
Solarbotics GraviTrack Solar Marble Machine
£34.79
£28.99
The GraviTrack Marble Machine Kit is the newest addition to the Marble-Drop mechanism family.
The Solar version pulse-moves the elegant hand-off mechanism that passes marbles to the top of a sweeping multi-level track. You will witness the fascinating step-by-step action of the arms as the geometry changes periodically.
Patience is rewarded with the plunk, and roll of a successful motion cycle. The more light it gets, the more often it moves. It's solar-powered stop-action motion!
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- Intermediate skill level - ages 12+
- Soldering required
- Basic hand tools required (Phillips screwdriver, craft knife, wood glue)
- Soldering tools required
- No batteries included (or needed - it’s solar powered!)
- 3 hour build time
