For years we had used the standard cat flap for our cats to go in and out to their enclosure. A couple of years
ago we had a couple of incidents where a cat caught his tail in the door. We have never figured out just how this happened, but probably
just when the cat was almost through the door something startled him and he jumped back pushing the cat flap over his tail. When this
happened the cat acted like the hounds of hell were after him. We started to look for an alternative to the flap design and found a
motorized door from High Tech Pet Products that looked like it would solve our problem. The following pictures show how we adapted
the door for our multiple cat household.