Tasky":36zlo08d said:
It still needs to be there and two weeks worth of even junk wood just to practice planing still costs a LOT of money, for some people...
I guess I wasn't clear enough. I'm not advocating using junk wood, and I don't like the idea of practice projects. I think you make your best effort on reasonable materials (in my case, the casework is in my daughter's room - a simple book case with hand cut mouldings and beaded trim on the face, and T&G on the back. No modern adjustable shelves, etc, it's all dadoed together and you could stand a car on it without it weighing 300 pounds).
It turned out, I didn't have any problems at all with it. Setting the double iron was almost immediate. The project itself took less time than it would've if I had used my prior rotation of single ironed planes.
No test wood, no test projects.
I did that at the time (forced myself to learn to use the double iron) because I'd had a couple of hand tool only projects before where I used very good quality single iron planes (an early 1800s jointer that was unused before me, a panel smoother and a self-made high angle infill) and it just didn't seem to me like the amount of time that it took to remove tearout was reasonable, and it made planing undesirable.
Let's say that you're trying an alternative M&T method instead, or order of operations. The kind of problems you'll have won't be dealbreakers - they'll be things that cause you to stop for a second and think, or perhaps you'll really wank something and have a mortise that's too high and need to shim a tenon. No big deal.
If I thought I had to stop all work and purchase special materials to learn something, that
would be a big issue, but it's rare that such a thing occurs.
My first couple planes weren't that great aesthetically, and eventually, I made two that I threw out for two different reasons. But I've made about fifty planes, so that's not much of an issue in the grand scheme. The speed and quality of most of the rest of those planes was improved significantly because I was willing to make mistakes on a project rather than making a test project. I made a test-something a single time on a plane, and that was a test infill on my first large infill plane. It took so much time to do and fit and trial that I vowed I'd never do it again. And I haven't. And I've never thrown out a single piece of wood since then that I can recall - on planes that is. In the last several years, I mismeasured two stiles on a cabinet face frame (working by hand) and they ended up a quarter too narrow and I had to set them aside. I probably threw them away, but I don't remember. I used about 200 board feet of cherry on those cabinets (and probably siphoned something off for a small project or two during that time) and that was the only outright waste due to error. Of course, I made mistakes when working, but few were unrecoverable. Working mostly by hand, you have a few chances to think about what you're doing, even if you're tired - I'd have had waste of at least 10% if I had used only power tools - just a personal thing. If I used power tools to make planes, the same thing would happen there.