Videos often do poorly on HN but I thought I'd submit this anyway because it's an interesting look at very high precision machining. He also talks about the int

Videos often do poorly on HN but I thought I'd submit this anyway because it's an interesting look at very high precision machining. He also talks about the intricacies of measuring when the thing you're measuring, and the tools you're using to measure, deform from their own weight. Gage is a valid US alternate spelling of gauge.