In the last month a few hogs have come through so I decided to make a trap. I cut down a few oak trees and used the door off a dog pen and some left over chain link fence I bought 8 years ago to do repairs on my old house after a hurricane. The first photo is the completed trap along with the supervisor. The second shows the triggering device. Basically its a just a stick that catches on two flat rods with a small bump on the bottom that holds the small stick across them. The hog bumps the stick off the bumps while rooting up the corn and vegetables and the rope slides through two pulleys to release the door.