The Solarbotics Solar Marble Machine
Balls ride up, balls roll down, powered by Solar Engine technology for use even indoors!
Solarbotics, have added a solar cell with a smart circuit to this clever marble machine. The circuit takes the light from the solar cell, stores it and releases it in a pulse, making the gear wheel move, which eventually drops the marble down the spiral. In sunlight, the motor will pulse every few seconds, and drop a ball every minute. In indoor light, motor pulses will drop to every few minutes (be patient)! if you are not, then you can use the hand crank and see the marble drop.
The kit contains all the parts to build your own Marble Machine, except for tools: you will need a soldering iron, Philips #1 screwdriver and a tiny bit of glue. The wooden parts come in handy panels with additional instructions.
- 3-ply birch construction
- Easy to build, with engraved building notes
- Solar-powered or hand-crank operation
- Operates in indoor light!
- 3/8" steel balls for rolling
- 1 x Set of laser-cut wooden parts
- 1 x GM9 motor
- 2 x #4x½" screws
- 7 x 3/8" steel Balls
- 1 x 4700µF capacitor
- 1 x SCC3733 Solar Cell
- 1 x PN2222A transistor
- 1 x MCP112 trigger
- 1 x Double-sided sticky tape
- 1 x 0.47µF capacitor
- 2 x 2-conductor wire
- 1 x Diode
- 1 x Solar Engine circuit board