DIY coin sorters

✎ This article/section is a stub — some half-sorted notes, not necessarily checked, not necessarily correct. Feel free to ignore, or tell me about it.

Coin sizes

EU:

http://en.wikipedia.org/wiki/Euro_coins

US:

Basic mechanical designs

Some designs (need to) try hard to separate coins or otherwise avoid jams.

Diameter sorters

Probably the simplest design overall.

Rolling past openings

...from small to larger.

Note that the height of the hole is the primary means of letting it through. (the width of the hole is sort of secondary)

Some designs are more elegant or minimalistic than others. Some designs have a bunch more holes than necessary for any one region's coin set - and can be used for more than one.

The far end of the hole may sometime be rounded, to avoid jams from coins that start to slightly tilt in a hole or two too early.

The track or the whole is often slightly tilted to make sure coins will actually fall in.

Coin speed has some effect too.

For example: