A small gear, and a ruler which has a hole where the gear rolls about. Put the point of pencil in a small hole on the gear, and roll it. We have then a beautifully drawn flowery pattern ("spirograph"). The software Spirographer is a thing like that.
|File Size||1.97 MB|
|Operating System||Mac OS Classic Macintosh|
|System Requirements||Mac OS 8-9.x|