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Autocompressor - Technic Power Functions Gadget

1,047 views · Published 18 September 2014 · 0:36 · Indexed 27 September 2026

Channel: Builderdude35 · 2014 · Science & Technology

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The Autocompressor is a special pneumatic compressor made with LEGO Power Functions. For a full written description and more pictures of this robot, please visit my website: http://builderdude35.com/

It is a pneumatic compressor that can pump air and change the direction of the attached actuators with just a single Power Functions motor! The motor spins the pump on a 1:1 ratio. At the same time, the pneumatic valve can either extend or contract its connected actuators [yellow cylinders]. It is able to flip between these two modes whenever the motor changes direction. The white gear driving the valve switch is a slipper gear, which ensures that the motor doesn't stall itself when the valve locks into its right or leftmost position. So, in summary, changing the direction of the motor's rotation will control whether or not the yellow actuator extends or contracts. Regardless of valve direction, the compressor can still pump alongside the valve switching device. Remember, this is all with one motor. A descriptive video of the Autocompressor, a clever pneumatic LEGO Power Functions device.
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