We've been big fans of Mr Raynsford (of Just Add Sharks) and his work
since he started the 365 lasercut projects in 365 days challenge. One of
the projects featured there was the marble machine. So we worked with
him to bring you the long awaited Marble Machine!
Solarbotics, we added our own twist to it - a solar cell with a smart
circuit. 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.
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
Easy to build, with engraved building notes
Solar-powered or hand-crank operation
Operates in indoor light!
3/8" steel balls for rollingEach kit includes:
x Set of wooden parts. If you accidentally snap a piece during
assembly, we'll send you out a replacement part (email
firstname.lastname@example.org for details).
1 x GM9 motor
2 x #4x½" screws
7 x ⅜" Balls
1 x 4700μF capacitor
1 x Diode
1 x PN222A transistor
1 x 381L trigger
1 x 6.8μF capacitor
1 x 2-conductor wire
1 x Double-sided sticky tape