Building a Magnetic-Driven Lego Submarine Learn how this RC submarine uses magnetic couplings to transmit torque through its ...

Building a Lego Submarine Watch as we build a radio-controlled submarine using Lego and other materials. This fun project turns Lego bricks into a working submarine that floats and moves in the water.

The [Brick Experiment Channel]’s latest build, a submersible made almost entirely from Lego, is one such project and has us pining for weather that makes a dip sensible rather than suicidal.

A large syringe is used as a ballast tank, with Lego motors used to actuate the tank and provide propulsion and steering. An existing RC submarine is cannabilized for parts, providing the ...