I was looking at all of the hammock chairs on YouTube,and in the forums here.
I made a couple of them off some of those videos. They took two trees sort of close together,
works OK, but what if you don't have two trees the right distance apart. I came up with a one tree camp chair,made of sport nylon. After some trial and error this is what I came up with.
I used some parts from some old crutches I had hope never to use again, to make an adjustable post to support one end.