Automatic Chicken Coop Door Drive Mechanisms

A major considerations when selecting an automatic chicken coop door is the mechanical process used to open and close your coop door.  There are many ingenious designs ranging in methods including cables and pulleys, gears and Rube Goldberg automatic chicken coop doors like this one:   Although these methods may work, challenges tend to surface using these methods which may compromise the safety of your hens.  We designed our automatic chicken door to keep it simple, yet effective.  A high-torque gear motor is connected directly to a 5/8 inch Acme Worm Drive.    The worm drive is attached directly to the door.  This design provides a simple, yet effective means by which to open and close the door and keep predators out of the coop at...

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