This article is referenced from http://optica.machorro.net/Optica/SciAm/Harmograms/1965-05-body.html THE ORNAMENTAL FIGURES AMONG the...

ThinkFun's Hypnograph drawing machine makes creating beautiful mechanical art easy and fun! A cheap, simple plastic version has been...

Free laser cutting plans of Cycloid Drawing Machine. Drawings are being organized. Will be available for free download soon. All parts...

I saw an interesting video on Weibo in 2016. That thing they call a 10 thousand flower ruler. The real name should be Cycloid drawing...

This is a few old Nixie Tube. It was produced in China in the 1980s. It's almost 40 years old, and it's still working today.This...