Cycloid Drawing Machine Higher dimension DuoGraph

The Cycloid Drawing Machine's basic operation.
My Facebook page: / cycloiddrawing
My web site: wangjd76.wixsite.com/somebody...
My Etsy Shop: Cycloid Drawing Machine Higher dimension Spirograph
www.etsy.com/listing/599367927

[@aidasoto2936]

I remembered.

[@icanmakemusic362]

This is great! What is the second song?

[@akshatadusa5093]

How is the main drawing board attached?

[@jdwong8686]

There is a rubber pad with bearings underneath, which rotates very smoothly.