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Once you get past the drawing part, look into rapid prototyping. They have machines now that can produce a physical item out of a polymer. It needs a few views but is wild to see. Some of them build it layer by layer, others by laser. Real sci-fi stuff. Do a Goggle search you won't believe it...
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Michael D. Holloway
https://simple.m.wikipedia.org/wiki/Michael_D._Holloway
https://5thorderindustry.com/
https://www.amazon.com/s?k=michael+d+holloway&crid=3AWD8RUVY3E2F&sprefix= michael+d+holloway%2Caps%2C136&ref=nb_sb_noss_1
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