I like making and shooting selfbows but, as I've gotten older, the old joints can't take all the scraping and hand sanding you have to do. I've been kicking around the idea of getting a belt sander to make things easier but have resisted dropping the money on one.
Well, I finally broke down and got one, since I'm planning to make another laminated longbow this summer and wanted to do the work at home instead of in my friend's garage. It'll pay for itself, since I know I'd burn that much gasoline driving back and forth from his house. I knew I didn't want a Delta, so I looked at the one from Ryobi. Then I compared that one to the Tradesman brand at Lowes. That's the one I picked because it's 3/4 horsepower vs 1/2 horse for the Ryobi and it had a solid cast iron base for stability.
It's one of those that have a small disc sander mounted on the side. Now I need to make myself a jig so I can use it for tapering my wood arrows too.
Now I need an oscillating spindle sander for roughing in my handles and sight windows. Then I can detail them with my Dremel.
I know, making selfbows with power tools isn't exactly primitive, but it's purpose is to make things easier on my primitive old body.

I know power tools can run off and take more material than you want and you can wind up with a bow that draws 20 pounds instead of 50, if you're not careful. But after 20 years in a machine shop, I've got a pretty good feel for working with power tools.