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LEGO MINDSTORMS Motor Multiplexor
00:18  - 2 years ago
2+1 = 4 . This robot's function is a special drivetrain called a Motor Multiplexor. It works by having 2 motors to drive the vehicle, and another motor in between the 2 to slide them forward along a gear rack. When they are in the front position a bump sensor is pressed, and it stops the centre motor. The 2 motors are now disengaged from the wheels, and ingaged to the 2 worm gear-boxes on the front, which have attachments on them. So, basically, it's purpose is to have 2 powered drive wheels and 2 powered attachments, with only 3 motors. BTW it was originally designed for FLL. 2+1 = 4 .
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