[Tuchman] starts with a quick proof-of-concept using an actual plastic Spirograph toy to make sure it isn ... result on the MDF test piece, so he laser cut an acrylic version as the next prototype.

with their low-tech spinning metal blades. What we need is a big frickin’ laser. YouTuber [rctestflight] has been experimenting with using a 40W blue diode laser module to cut the weeds ...