Suffice it to say, we’re big fans of Lego builds ... home-brew brick motor to rev to the moon? Add some oil to it. And that’s just what the OP does before firing up the vacuum and letting ...
He created an excellent centrifugal pump out of 100% LEGO. While mostly a curiosity, you can definitely get a sense of how the mechanics work. A Power ... He geared up the motor so the assembly ...