3 cattle panels, 12 T-posts and a homemade drop door rigged to a rooting stick type trigger. It works pretty well for me. I can set one up and take one down fairly quick.
I baited this spot 3 weeks ago with 100 pounds of corn. The following weekend built the trap and baited the inside and outside with 100 pounds of corn. Then last weekend baited only the inside with 50 pounds. On Monday they were in there waiting.
Doing it this way has proved the most effective. I think it just gets them used to trap over a period of time. Very rarely do I only catch 1 and it’s usually a lone boar hog.