Normally I would put this in the “Nonlaser things that I think GFers will find interesting” thread but it’s cool enough that it should have its own thread.
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I love his stuff and had not gotten around to this one yet.
We’ve been doing this manually for thousands of years but it is so cool that these guys are cracking the code to do it with CNC.
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To paraphrase, 'There’s a lot of math going on here. ’ Oh man, understatement of the century. To see the finished cutout example near the end, with pushing it out far enough, at an angle, to get the support necessary to push it ‘back’ at an angle. 
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Very old technique used with silver, gold, copper, brass, and other materials. Titanium is a bit tougher to do by hand and a great place to apply robots.
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My son really likes that channel
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He does some truly fascinating stuff! Went under ice in a Navy sub. Heck, I did 6 years in the submarine Navy and never went under the ice!
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Man o man, the rabbit hole this could create for me.
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Do it!
(says the bad idea forum reading guy)
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