Instructions
GraviTrack Solar Marble Machine Kit
9
option 1
option 2
5.6
There are holes located on the
GraviTrack for routing the solar
cell wires for best access. Run the
wires through the hole of your
choosing and connect the wires
and large capacitor to the
SolarEngine as shown in the
previous step 5.1.
option 1
option 2
5.4
You get to pick the best place to mount
your solar cell, and the mounting parts
from Panel 1 are configurable to suit the
need.
Assemble them as shown and then insert
the mount into one of the locations in
the previous step.
Depending on which location you’ve
selected, the solar panel will need to be
horizontal or vertical. Place the
remainder of the double-sided tape on
the back of the solar panel and adhere it
to the mount. Cut it into small strips as
shown.
5.5
Front mounted
solar panel wires
can go through this hole.
ASSEMBLY
You are now FINISHED. As soon as you complete the motor wire attachments to the
solar cell/capacitor terminals of the solarengine, your device will start operation.
Test it under a bright incandescent or halogen lamp (LEDs/fluorescents are terrible
for solar cells), or in sunlight. The motor should start pulsing every few seconds,
moving the arms 3~15mm (1/8” ~1/2”) each time. Watch it go through a full cycle or
two to make sure nothing is binding, then add your balls to the track, and watch it do
it’s magical mid-lift hand-off between the two arms!
Being solar-powered means the more light it gets, the better it runs. In bright
California sunlight, the Gravitrack runs almost continuously. In a dark Canadian
winter, you’ll only see a pulse every minute or so. The solarengine will take whatever
power available, and uses it as best as it can, be it low, low light, or intense sunlight.










