Rubik's Magnetic Cube prototype: 3/16" yay
I remembered finally that my drill press has a threaded stop with 2 nuts on it, so I could set the depth of the holes. I stuck one of the D32 magnets to the bit, such that the top was where I wanted the top of the drill to stop boring into the acrylic cube, actuated the press to put the bit next to the cube to where I could eyeball the depth by way of that magnet, and then threaded the 2 nuts down to the stop mark. I made a test drill this way, without the wrench-on drill stop, and the hole depth was perfect, the hole itself clean as could be. My depth stop on the press is kinda flimsy, so it isn't super repeatable, so all 108 of my hole depths were a wee bit off, but I got the feel of it pretty quickly, and erred on the short side, testing each hole with a magnet before going deeper if need be.
Rubik's Magnetic Cube prototype: 3/16" yay
I remembered finally that my drill press has a threaded stop with 2 nuts on it, so I could set the depth of the holes. I stuck one of the D32 magnets to the bit, such that the top was where I wanted the top of the drill to stop boring into the acrylic cube, actuated the press to put the bit next to the cube to where I could eyeball the depth by way of that magnet, and then threaded the 2 nuts down to the stop mark. I made a test drill this way, without the wrench-on drill stop, and the hole depth was perfect, the hole itself clean as could be. My depth stop on the press is kinda flimsy, so it isn't super repeatable, so all 108 of my hole depths were a wee bit off, but I got the feel of it pretty quickly, and erred on the short side, testing each hole with a magnet before going deeper if need be.