I was not following this build until this morning. The tool drew me in. The places I have lived before are littered with home made parts and tools that didn't work. When found by archeologists in the future the will think"WTF?" I have a theroy that most tools found from ancient cultures are the ones they threw away. They kept the good ones. Yours looks like a keeper.
I went back and read it all. I'm into it now.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain