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Homemade scissor lift - video
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I love This Old Tony. You can't know this from the videos, but he is easily as hilarious and whip-smart in person, and an unbelievably generous guy.
And his videos are top notch.
TheElderBrother
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I've been watching him for a few years now. I'm amazed at his computer modeling of thermal and structural stuff he makes.
He made some Hilsch vortex tubes, did interesting computer thermal modeling, and video'd his process of making and improving.
https://www.youtube.com/watch?v=Hn8hDY4bvpI
His CNC mill as well with his structural modeling. And the ultrasound knife he made and computer modeled the amplifier horn.
He has to put lots of time into the editing and added graphics. And his story telling is entertaining.