Making a Reso Coverplate Ring

All bit's glued together to form a ringjust need to router the outer and inner to form the Coverplate ring
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  • Or is it 90 degrees minus 15 degrees = 75 degrees. Guess it just depends on how you look at it.

  • I've since figured out how to calculate the angle for a regular polygon with "x" number of sides. Just divide 180 by "x" and that's the number of degrees each side piece angle should be cut. So, for 12 sides, x = 12 and 180/12 = 15 degrees. It's been nearly 50 years since I had geometry,

    -Rand.

  • I meant 10 sided, not 19.
  • Hi Juju.

    I love your work. I was thinking of building a "banjo style" sound box using an 8, 19, 12, or 16 sided polygon. I see you have done a 12-sided ring. I was wondering what the angles are that you used in the 12 component pieces? Can you let me know? Thanks in advance.

    -Rand
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