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Building a Lego-powered Submarine 2.0 - magnetic couplings,Science & Technology,lego technic,radio control,rc submarine,neodymium,magnets,swimming pool,max torque,This RC sub has magnetic couplings to transmit torque through the walls. No need to drill holes = no leaks. At the end I test it in a swimming pool. Enjoy! Differences to the first sub https://www.youtube.com/watch?v=tGEZApd9MMk -rectangular hull (need flat walls for magnetic couplings) -snap-and-lock lid (more reliable, less leakage) -bigger motors, more motors, more propellers -depth control using propellers (IMO more accurate compared to a syringe ballast tank) -lead pellets for ballast (easier to adjust, both shape and weight, compared to steel plates) -captain (thanks everyone for pointing out this obvious missing part :)) The submarine specs: Displacement: 2.7 kg (6.0 lb) Test depth: 1.5 m (4.9 ft) Hull: glass food container (IKEA 365+ 1.8l), plastic lid Motors: 3x Lego XL-motor (8882-1) Magnetic couplings: K&J Magnetics R844-N52 neodymium magnet, TapeCase 423-5 UHMW Tape Propellers: Lego propeller blade (2952), Lego liftarms Radio control: 27 MHz controller dissembled from a toy submarine (Zantec Mini RC U Boot), L298 H-bridge to drive motors Power supply: 9V Lego battery box for the motors, 3.7V Li-Po for the RC Onboard camera: Faironly Firefly Q6 Pressure sensor: Jolly Logic Altimeter One Link to the magnets used in the couplings: https://www.kjmagnetics.com/proddetail.asp?prod=R844-N52 Music: Tommy Baynen - Laminar Flow [Colorize] https://colorize.ffm.to/encolor222 https://www.youtube.com/watch?v=UPdR8lh4a1o https://soundcloud.com/tommybaynen
Lego MOC,Лего,Lego, LEGO,,Brick Experiment Channel,субмарина,видео,video
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ему бы ещё лего-торпеды туда добавить, было бы совсем круто
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