• Tunnel Frame Up

  • Adding Limit Switches to the Drop Down Sides Motor Circuits

    Adding Limit Switches to the Drop Down Sides Motor Circuits

    System at rest  

  • Wiring two relays to reverse the rotation direction of a DC motor

    Wiring two relays to reverse the rotation direction of a DC motor

    Here’s how the two SPDT relays work to reverse polarity/direction of a DC motor. I’ll be using this circuit to open/close high tunnel sides and gable vents based on the temperature inside the tunnel and will also be closing the sides in high winds. If it’s hot and windy, I’ll have them close 80% of…

  • Electric Signs

    Electric Signs

    Aside from automotive work, I spent 20+ years building custom electric signs, I did quite a bit of work for theme parks like Disney and Universal Studios. They’re pretty picky, especially Disney who have their own electrical and mechanical engineers to spec out how things are to be built and they inspect everything before it…