#video on #manufacturing a steel-cutting machine from windshield wiper motors. Kind of #clickbait, the motor just moves a plasma torch along rails. I mean, he does show the process of fabricating the machine out of mostly cold-rolled plate with an angle grinder, drill press, and MIG welder, but then he uses fancy precision-ground hardened steel rails and sliding ball bearings. And the actual cutting part is the torch, which he doesn’t make.
#video on a #Microsoft Windows enthusiast moving to Linux at last because he’s “sick of this”. He was impressed that Linux Mint just worked out of the box on his NVIDIA Optimus Alienware laptop. He uses Inkscape, KiCad, and DaVinci Resolve, and plays games, and they all worked. But the video is almost entirely just a bunch of screenshots with the Ken Burns Effect. He does include a little bit of footage from Helldivers II. Shows Steam statistics and mentions Linux now has 1.9% market share to MacOS’s 1.35%. But he’s sticking with Microsoft Windows 10 for now.
#video #clickbait #manufacturing “illegal stove” that “uses water” (to increase turbulence and therefore combustion rate and therefore temperature in a waste-oil burner welded up out of steel pipes). Nothing illegal about it, it’s just a water-blown blowtorch (that probably produces a lot of CO).
#video #mechanical #clickbait high-precision speed-reducer uses rope. This is a variant of the Jacob’s ladder rolling flexure pivot, with the variant that one of the rollers is a tiny capstan and therefore the angular velocity of the actuated joint is much lower than that of the capstan itself. Cable drive means limited range of motion, but you get a lightweight joint with no backlash and hopefully little wear. #flexures