Harry,
It's obvious that my back is not the only thing taking a toll with age, but my eyes also!
That's something I've actually been wanting, a portable welding unit, I don't have a lot of needs, so small tanks would do. A friend of mine made a TIG welder out of an old microwave, mainly using the transformer from it. It wasn't pretty, but it worked...
One thing I've been pondering is some type of lifting setup, where I could lift sections of wood into place, in building larger projects like a bench, for instance. I keep thinking there's probably a fairly easy solution, possibly employing some type of hoist. I'm sure I'm not the only one that would welcome something like that...I do occasionally use an engine hoist, but it requires a lot of space when moving larger items, and won't fit in the area I do hand tool work. Most projects it doesn't matter, it's only when the timbers start getting bigger (bench top is a good example) that this becomes a problem for me. I do most of my work alone.
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Life is about what your doing today, not what you did yesterday! Seize the day before it sneaks up and seizes you!
Alan - http://www.traditionaltoolworks.com:8080/roller/aland/