Welcome to the first in our series of Chain Reaction (Rube Goldberg) Machines. We wanted to start off simple with only a three step machine. We used a sound trigger to kick off a servo motor with a stick on it to start the dominoes (Step 1). The last domino had a shoe string attached to it and fell off the table, which pulled a stopper holding back a marble (Step 2). Then the marble rolled down a ramp to force a wire to connect to a power bit, which powered another servo motor attached to the ending flag (Step 3). The ramp is a toilet paper roll cut in half. We cut 2 small slits in the roll to wedge another small piece of TP roll into for the stopper. Click the pictures below for detailed pictures of each step.
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March 2017
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