Coin Sorter

This was our final project. The objective was to design and construct a coin sorter. Here are the requirements and restrictions.

1. This new device should be capable of holding and automatically sorting 100 US coins in less than 2 minutes.

2. The energy source of the device can be very flexible and may include gravity, coil springs, small DC motors with battery, wound springs, or similar devices, as well as manual cranking. A combination of some or all of these items can also be used as the power source.

3.The device should be small in size (should fit in a 15’x15’x15’ box), portable, easy to operate, easy to manufacture in mass quantities, and safe.

4. The total budget given to your design team for the prototype is less than or equal to $15.

We used a system of four boxes and used gravity and hand cranking as our power sources. Here are a few pictures of our design.








Our design worked very well. We only missed 2 coins which gave us 98% accuracy and we did it in 34 seconds, the fastest out of any other group.