/diy/ - Do It Yourself

These things used to mill complex shapes in wood before cnc and handheld routers. A follower pin is inserted to the table below the cutter to follow a template. Absolutely terrifying when the workpiece is on the small side. The cope cage around the bit is not much help.
And it always has you second guessing the feed direction, as the rotation is reversed from what you're used to on a router table.