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Challenge: Constructing and Distinctive Coin Sorting Machine
Overview: You are tasked with designing and building an original coin sorting system that can accurately separate U.S. pennies, nickels, dimes, and quarters. Your solution should demonstrate both technical proficiency and creative thinking, resulting in a device that is unlike existing commercial products.
Biases of Ideas
Biases of Ideas
Open Version
Fully Closed Version
Semi-Closed Version
Sources
Sources
Works Cited
Works Cited
Dailymotion. (2020, August 8). DIY Coin Sorting Machine from Cardboard | Electric Coin Sorter Machine | Coin Sorter Dispenser | How to Make A Coin Sorter Machine - video Dailymotion. Dailymotion. https://www.dailymotion.com/video/x7vgl9f Facebook. (2016). Film.
Facebook. https://www.facebook.com/interestingengineering/posts/make-your-own-coin-sorting-machine/2225744430828582/
Million Gears. “How to Make an Automatic Coin Sorting Machine from Cardboard.” YouTube, 2 Apr. 2020, www.youtube.com/watch?v=meXn081TL9A. Accessed 25 Apr. 2025.
Mokso. “How to Make an Automatic Coin Sorting Machine from Cardboard.” YouTube, 6 Mar. 2019, www.youtube.com/watch?v=7WIWqxSVaSw.
The Q. “DIY Automatic Coin Sorting Machine from Cardboard V2.0.” YouTube, 25 Aug. 2017, www.youtube.com/watch?v=8eXM93Wyrro.
Notebook
Notebook
Notes, Ideas, and Sources
Drawn Design
AutoCAD
AutoCAD
Sides and Supports
Failed Sorting Design
Successful Sorting Design
Collection Container
Drawers
Our Machine
Our Machine
The Drawers
Scoring and Comments
Results of One Test
Side View
Top View
IMG_7124.MOVSorting Mechanism (penny)
IMG_7123.MOVDrawer Space
IMG_7122.MOVHopper Mechanism
IMG_1115 (1).MOVVideo of Almost Successful Run
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