Giant Spirograph...
Redditor HaHaBird built an 8-foot wide spirograph.... ...big enough to take out into the streets and make chalk drawings on pavement. He says,I built this giant... ...er is just under eight feet (2.4 meters). It uses sidewalk chalk to draw the lines.I didn't keep track of the tota...
https://www.neatorama.com/2014/07/29/Giant-Spirograph/
