This magnetic baseplate allows you to setup your Dado right at the tablesaw. Usually you have to mount the Dado Setup Fixture in a vise or drill holes in your worktop. This magnetic base fits snugly on the setup fixture and holds solidly on the iron top of your tablesaw. It also protects your setup fixture from dings and scratches. This prints with no supports because of the crosshatch design of the magnet recesses. Happy Printing!