Cycloid Drawing Machine https://www.thisiscolossal.com/2016/03/cycloid-drawing-machine/

Lasers Created With Laser

StephaneBUISSON (Stephane BUISSON) November 2, 2018, 8:11am 1

Cycloid Drawing Machine

donkjr (Don Kleinschnitz Jr.) November 2, 2018, 1:53pm 2

#K40Projects

SirGeekALot (James K. Rivera) November 2, 2018, 6:48pm 3

Reminds me of my old Spirograph!

Mike_Meyer (Mike Meyer) November 3, 2018, 5:38pm 4

Wow, so feckin’ cool!