Building a Lego-powered Submarine 2.0 - magnetic couplings
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
-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 ), 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, Li-Po for the RC
Onboard camera: Faironly Firefly Q6
Pressure sensor: Jolly Logic Altimeter One
Link to the magnets used in the couplings:
Music:
Tommy Baynen - Laminar Flow [Colorize]
1 view
38
8
2 months ago 00:01:29 1
Need for Speed Unbound - VOL 2 Content Update Trailer
2 months ago 03:13:24 1
Full video: Girl Living Alone in the Forest - Set Traps and Ambush Wild Boars, Big Sharp Trap...
2 months ago 00:25:52 1
Heavenly Sounds - The Organ and its Fascinating Versatility | Music Documentary
2 months ago 00:01:00 1
Juggler vs Juggler! The ultimate showdown! | Cirque du Soleil #shorts
2 months ago 00:13:08 1
Just Insert an Electrical Plug on the TV and Watch all the Channels in the World in Full HD!
2 months ago 00:05:16 1
Орск. Крупнейшее наводнение в 1957 / Orsk. Largest flood in 1957
2 months ago 00:02:23 1
Starship | Third Flight Test
2 months ago 00:01:41 1
Runa | Official Announcement Trailer | April 16 on Kickstarter
2 months ago 11:54:59 1
Mystical Treasure - Brings you miracles, money, luck and prosperity - 432hz
2 months ago 11:54:59 1
This week you will become very rich | 432 Hz music attracts money, prosperity and luck!
2 months ago 00:18:25 1
Curious George in Space 🐵 Curious George 🐵Kids Cartoon 🐵 Kids Movies 🐵Videos for Kids