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.

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Coin Spillway – Step 4

Tape base and 2nd vertical support.

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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