Joe Freedman's Amazing Cycloid Drawing Machine, Article

Wayne Schmidt's review of Cycloid Drawing Machine that he considers the world's best mechanical drawing machine.

ME218A:​Cycloid Drawing Machine - Home

Joe Freedman's Amazing Cycloid Drawing Machine, Article

Overview, Crickit Harmonic Drawing Machine

Free DXF file Laser Cut DuoGraph Drawing Machine 🎨・3D printable model to download・Cults

GatorGraph Drawing Machine by Joe Freedman — Kickstarter

Drawing Machines: Progress of a Wild Cycloid Machine – A Story is Not a Tree

Overview, Crickit Harmonic Drawing Machine

Joe Freedman's Amazing Cycloid Drawing Machine, Article

Draw Infinite Geometric Designs With the DuoGraph, a Compact New Drawing Machine by Joe Freedman — Colossal

Drawing Machines: Progress of a Wild Cycloid Machine – A Story is Not a Tree

GitHub - jbum/CDMS: A simulation of Joe Freedman's Cycloid Drawing Machine from Kickstarter, in Processing.JS