Spirograph

The spirograph draws pictures by allowing one cog to run around another. There are three parameters which dictate the picture. These are:

smallTeeth:
bigTeeth:
smallRatio:
smallTeeth:
bigTeeth:
smallRatio:
smallTeeth:
bigTeeth:
smallRatio:
smallTeeth:
bigTeeth:
smallRatio:

An investigation

The Spirograph Design Toy from Hasbro

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