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  1. #31
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    Can't stay...bye bye, now...
    Last edited by urleebird; 12-21-2006 at 03:37 AM.

  2. #32
    Senior Member Joe Lerch's Avatar
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    Quote Originally Posted by Kees
    Joe, if anything I do not think it will bow out. Just take a twig, bend it and cut off lengthwise with a straight cut some of the bark and the wood on the convex side of the bow and then "unbend" it. You'll notice you created a dent rather than a bump.
    This is not the same thing. In your example you are putting a flat cut on a curved branch. When you straighten the branch you will have a concave cut.

    In our case, you have a bevel which is being pressed so hard that the edge rises off the stone, and you end up honing behind the edge. If your pressure was constant, you would produce a flat bevel behind the edge, and that bevel would have a steeper bevel angle. If you vary the pressure, the bevel behind the edge bevel is rounded, because you have a series of bevels. As you reduce the pressure (theonly way to affect the shape of the new bevel), you create a bevel closer to the edge with a larger bevel angle, the largest being the original bevel. That is a convex or outwardly bowing bevel.

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