Scratch Robots
Coin Spillway
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Coin Spillway – Step 1
Build a reinforced base.
Glue or tape coffee stirrer sticks to strengthen base
8.5”x5.5” cardboard
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Coin Spillway – Step 2
Score and cut vertical supports.
8.5”x11” cardboard
Cut in half the long way.
Then score lines 1” from the edges so the cardboard will bend in a straight line.
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Coin Spillway – Step 3
Tape base and vertical support together.
Bend cardboard along score lines.
Rube Goldberg Chain Reaction Modules
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Coin Spillway – Step 4
Tape base and 2nd vertical support.
Rube Goldberg Chain Reaction Modules
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Coin Spillway – Step 5
Cut and score spillways.
Tape spillways to vertical supports.
Masking tape
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Coin Spillway – Step 6
Tape vertical supports at top. Make sure that a quarter can roll down the spillway.
Add a 2nd spillway.
Masking tape
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Coin Spillway – Step 7
Decorate your coin spillway.
Rube Goldberg Chain Reaction Modules
