Brackets for attaching PVC pipe to fence

This is a quick, down and dirty design to keep hawks out of the chicken yard and to keep the chickens in. I use thin netting to cover the top of the chicken coop, and lengths of PVC make the ribs that support it. I printed two kinds of brackets to join the PVC to the fence on either side. The round bracket snaps on to the top rail of a chainlink fence. No fasteners are needed. The other bracket braces against the 2x4 of the adjacent fence. This has holes for screws to keep it in place.