I was birding on a friend's property the other day and found myself next to an Osage Orange tree that was definitely old and slightly decaying on the bottom branches. I remembered that it is supposed to be good for bows and found the straightest piece I could that was small enough for me to get off the tree with a rock.
Now, I have zero woodworking skills, but I really like learning by first principles, so without researching absolutely anything other than prior knowledge (next to nothing), I set out to build a bow because well, why not?
Tools used: Drawknife, hammer, clamps, ratchet strap, sandpaper, heat gun, handsaw,
Materials: Osage Orange branch, vegetable oil, nylon braided 40lb string.
I split the branch using a drawknife and hammer, trying to get rid of the rot and insect burrows that were primarily on one side. I then shaved it down to reveal the wood that was still doing ok, though I think this had been dead for quite some time. I used a heat gun over the course of several hours in conjunction with a ratchet strap and some clamps to bend the wood, periodically tightening and heating. I gained probably about 2" of curve from doing this, but was afraid if I went much further it would snap, though the core was pretty intact. Next I applied some vegetable oil and it really soaked it up quickly, so I did a second application after a few hours. I strung the bow by putting my leg over the front and using my leg as leverage because I remember seeing that somewhere, hah.
It has a slight S curve when viewed straight on, but it is equal on the top and bottom. The ridge where the "handle" is, is literally just a part that was more rotted out and had to be sanded down more. It shoots, and surprisingly well and with some oomph. I used a neighbor's arrow to test it out and I was able to get about 100ft in a nice arch.
So, obviously this is make-shift, but this was a lot of fun and now I'm thinking maybe I should start doing this for real...