Cat fence roller by maxdaniel is licensed under the license.
DIY fence rollers to keep cats and dogs inside! Basically a DIY version of the katzecure. I'm doing it.
If you but don’t trust that it is doing the job of keeping your cat only in your yard, roller bars are a great way to increase . Roller bars can be installed onto fences made of any material (including wood) and stop your cat from getting the grip to climb over them. They are not as intimidating as spiky strips and work just as well. Roller bars can be installed other places in your yard as well (on top of sheds or playgrounds) to also keep your cat from getting up too high and jumping out of your yard.
It's essentially a roller installed along the top of the fence that's designed to prevent a coyote (or dog or cat) from leapfrogging atop the fence (or climbing up), placing it's front legs atop the fence, then bounding over to the other side. It works by preventing any animal from maintaining any kind of grip on the top of the fence. Sounds like it would work. I've not been around a lot of coyotes - though we DO have them here in the Seattle area - but as a kid I used to have a dog that literally climbed chain link fences and I've seen videos of coyotes doing the same.
Cat fence roller by maxdaniel - Thingiverse
DIY fence rollers to keep cats and dogs inside
5. Cat Fence-In’s design and placement on the fence prevents prolonged contact with a cat that might claw at or chew on the netting. The black polypropylene netting is strong (break load over 50 lbs. per sq. inch) yet lightweight and flexible. This netting along with the narrow steel brackets discourage stray cats from walking on the system.Another method of cat-proofing a fence is to add a roller to the top of the fence. If the cat jumps or climbs onto the roller, the roller will roll and the cat will fall off. There is always the option of a roller bar fence. You can string PVC pipe on sturdy rope on the top of the fence, so the pipe will spin. When the leaping cat hits the pipe, his paws will spin off the rolling pipe and he will fall back to the yard safely.Safe cheap way to keep cat from escaping my back yard. He can jump my 6' privacy fence in a second. Took a while to figure out how to safely stop him. Scared of losing him. Flower Bed Border Fence - Vinyl-coated, 14-gauge galvanized wire. 20ft $9 Unrolled and attached to top of fence. Once secured to fence I hand curved the top inward. My neighbors can't see it above the fence. Later He jumped, touched it, but couldn't get over it or get caught in it. Safe success!