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Wax motor

525 points · 107 comments · mhb

  1. geokon · · focus · HN ↗
    Seems this would make it possible to make a relatively cheap waterproof actuator if you made it out of something corrosion resistant?

    I've been looking for actuators to use in damp/wet environments and sealed actuators are rather expensive and supposedly don't last too long

    1. Centigonal · · focus · HN ↗
      Some hot water radiator systems use wax actuated valves made from brass (Taco brand is common). They are extremely simple and robust.
      1. geokon · · focus · HN ↗
        thank you for the pointer!

        I've struggled to protect eletronics. Waterproof enclosures all fail over time. Though I have some ideas for immersion in mineral oil. But finding actuators that could work has been a bit of a struggle. These look cool, though maybe not something one could run off 5V :) Ill keep looking around

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