How do you assemble your own homemade coin counter?


Quick Answer

Assemble your own homemade coin counter out of a cardboard piece of 12 inches by 8 inches, four cardboard boxes of 2 inches by 2 inches, a wooden plank of 12 inches by 1 inch by 1 inch, and four hand scales. The coin counter will sort the coins by size.

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Full Answer

Place the wooden plank across the piece of cardboard and, using a protractor to measure, glue the plank to the cardboard at a 45-degree angle using a hot glue gun. Starting 1 inch from the right edge of the cardboard box, make four holes above the wooden plank. Each hole should be 2 inches in length. The first should be the width of a dime's diameter, which is 0.705 inches. The second should be the width of a penny's diameter, which is 0.75 inches. The third hole should be the width of a nickel's diameter, which is 0.835 inches. The fourth hole should be the width of a quarter's diameter, which is 0.955 inches.

Cut the ends off of the four cardboard boxes, creating hollow tubes. Glue the boxes to the back of the cardboard piece. Place a hand scale under each of the cardboard boxes so that the bottom of the cardboard boxes aligns with the top of the hand scales. Create a chart that shows the multiples of the weight of each coin and attach it to the back of the cardboard box for reference.

When the coins roll down the wooden plank along the piece of cardboard, the counter sorts them according to size and deposits them on the hand scales. Read the hand scale to determine the weight of each type of coin, then use the chart you created to determine how many of each coin you have.

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