Posted by Matt12345 on May 07, 2014 at 10:35:53 from (174.6.136.79):
Quoting Removed, click Modern View to see
I know I'm a bit late, but I'd like to reply.
This I did with a dog door a year back. Every day I would leave for work and it was next to impossible to get out the door without Daisy trying to come with me. Putting it on a chicken coop is essentially the same.
I used a mini actuator, 150lbs,4 inch stroke. It was more than enough power to keep the door open, but I wanted to make sure that it would be able to do it.
I grabbed a control box, and then a timer. I'd put Daisy in and then time the thing for ten minutes. That way, the dog would get the run of the house, and I would get to work on time.
There's lots out there, but these are the guys I went with. It wasn't crazy expensive to do. It was under $300.
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