After falling down a YouTube rabbit hole, I set out to build a floating “cave” table inspired by an illusion design — but bigger and more ridiculous. It started with two massive 3-foot-by-3-foot ...

[Ben Krasnow] milled some lenses out of cast acrylic and needed a way to get an optical finish on the tool-marked surface. He tested several acrylic finishing methods to achieve a crystal clear finish ...