How to make a coin sorting machine from cardboard

The Q made this nifty coin sorting machine from cardboard.

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  1. Cunk says:

    Not that I want to discourage creativity and homemade projects like this but to me a coin sorter is only useful if you can dump piles of coins into a hopper. If I'm going to be feeding coins through a slot one at a time I may as well just drop them into their corresponding trays.

    So that's the next project.

  2. And make it out of metal for durability. And add an Arduino that counts the coins and emails you the count. And then sends the coins away and gives you a Amazon voucher for that amount. But I'm sure that takes up a lot of room for something I won't use often. Maybe if they stuck it in the supermarket a block away from me. Yeah, that sounds cool. I'll get to work.

  3. I don't think it would be difficult to add a hopper to this design - just make it so they all go in the slot one at a time. Jamming would likely be a problem if too many coins were added at the same time, but that's something you could probably fix with a little shaking.

    I actually was looking for a simple coin sorter the other day on Amazon and couldn't find anything reasonably priced that would allow me to throw a handful of change in and have it get sorted. Seems like there are only bulky $30ish options for automatic (battery powered) coin sorting, or simpler options that require much more manual labor. I might actually try to build this thing (and add a hopper) since it fits my budget and needs nicely. I'll have to get a hot glue gun though, but I guess it's always good to have one of those for crafts projects anyway.

  4. Last time I looked, those supermarket machines take ~17% off the top around here.

  5. Good grief. You don't need a machine to do this! I've been sorting coins much more quickly by hand, ever since I was a grade-school kid.

    Just make the coins into a stack in the palm of your hand, then grab a thumbful of the largest diameter ones loosely with your other hand's thumb and index finger, extract them, and put them on one end of the stack. Repeat as needed until all coins are sorted. I could shoot a video of this technique if I had a cohort to hold the camera.

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