RecordNumber
3887
Author
Sayers, Nick
Crop_Body
Nick Sayers
Title of Article
The Art and Mathematics of Cycling: Using Old Bicycles to Draw Spirograph Patterns
Title Of Journal
Bridges
Publication Year
2020
Abstract
This paper describes a series of drawing machines made from scrap bicycles by the author. The characteristics of
these machines are discussed, as are the maths and geometry of the curves that can be drawn with them. These
patterns include: hypotrochoid (“spirograph”), harmonograph (aka Lissajous curve or “pintograph”), and
epitrochoid (“reverse spirograph”).