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130lb elm bow

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willie:
This example of differential tempering is an  interesting technique that gets a guy thinking about the meaning of "equal strain".

I suppose that if a tempered area is bent just as much as an untempered area, than the the strains are equal. Presuming of course that the thicknesses of both are the same.

Just for the record, I spend a bit of effort keeping  the tapers on my bows fairly precise, at least up until final touch-ups at near full draw. I usually try to keep plus or minus  .01 inch from a straight line.

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