Homemade lathe with ONE MICRON accuracy.
by John
Watch the video. It is inspirational.
johnsmachines
machines which I have made, am making, or intend to make, and some other stuff. If you find this site interesting, please leave a comment. I read every comment and respond to most. n.b. There is a list of my first 800 posts in my post of 17 June 2021, titled "800 Posts"
johnsmachines 
As previously mentioned inspirational and awe inspiring to an engineering hack – wow. and he does it as if it is nothing.
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And his other videos on YouTube are definitely worth watching. Highly recommended.
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