What makes this automatic
chicken coop door opener unique is the fact that all the parts can
be found easily.
Most designs revolve around a
100 dollar drapery
motor, but this one could use a wide variety of slow motors or
maybe even a faster one hooked up to a system of gears like that on the
transmission of a riding mower. Youtube username pilesofplenty uses a
rotisserie motor and a bicycle inner tube as the drive belt.
Walmart sometimes sells a
rotisserie motor for 20 dollars that we’ve used to drive a mechanical
deer deterrent, but it’s a seasonal item and might not be available
during winter months.