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Staves and Segments

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What's Your Angle?

Corner and miter angles for
various numbers of sides
no. of sides corner miter
6 60° 30°
8 45° 22-1/2°
10 36° 18°
12 30° 15°
16 22-1/2° 11-1/4°


What's your angle?

A full circle contains 360 degrees. So, to make a closed construction out of straight pieces, the corner angles must add up to 360 degrees. In the simple figure with six equal-length sides shown in the Corner and Miter Angle illustration below, the six 60 degree corners add up to 360 degrees.

But, as shown, 60 degrees is not the angle you need to cut on the ends of each piece. Because two sides come together to make the angle, each side must be miter-cut to exactly half the total corner angle, or 30 degrees.

Here's the rule for finding the angle: To determine the corner angle for a figure with any number of equal-length sides, divide 360 degrees by the number of sides. To find the miter angle, divide the corner angle by two.


340_2_2

Continued on page 3:  How Big Will It Be?

 

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Comments (6)
8180002505
wood-fog wrote:

I like the fact that you are trying to help us, but, for my limited education, I find your method tedious. I was taught that because you are finding the miter angle to cut.finding the corner angle is a waste of time. Just divide the number of sides into 180 degrees (1/2 of the circle)

1/19/2010 10:19:56 AM Report Abuse
louis Hansen wrote:

very useful info Thanks

1/8/2010 08:25:07 PM Report Abuse
pshelp1 wrote:

I DON,T UNDERSTAND THE SEGMENTATIONS ON MY LATHE CHUCK WHAT IS THAT FOR?

1/7/2010 04:38:28 PM Report Abuse
davidmpitts wrote:

The glue-up can be fairly straight forward as well. Just lay all of the staves edge to edge and bevel down. Then tape the edges together so that when you glue them up the tape will act like a hinge. Then use some thick rubber bands or some band clamps to hold it while the glue dries.

1/7/2010 12:54:55 PM Report Abuse
cowanbryan wrote:

I dont have a problem with the angles its the glue up that baffles me

1/7/2010 10:25:01 AM Report Abuse
maurice bedard wrote:

For more information on stave bowl construction you can refer to Wood magazine issue 23. It's loaded with helpful hints and ideas.

1/7/2010 09:58:44 AM Report Abuse

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