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Old 07-27-2012, 01:28 PM   #1
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Angle of cut


I need the angle I should be mitering for a decagon shape, 10 sided shape.

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Old 07-27-2012, 01:38 PM   #2
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Angle of cut


What should the mitre saw angle be for a decagon (10 sided) frame be?

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Old 07-27-2012, 02:06 PM   #3
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Angle of cut


Depends. Are all sides equal? And are you just trying to miter, or compound miter? Are you trying to make some kind of flat picture frame or?
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Old 07-27-2012, 02:15 PM   #4
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Angle of cut


Actual angle--36 * miter angle 18*
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Old 07-27-2012, 02:17 PM   #5
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Angle of cut


All sides are the same. I'm making a decagon (10 sided) waterbed frame, and the side boards are 1"x 9"x 29". The boards will be on edge, so I need the angle to set my mitre saw at. Thanks.
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Old 07-27-2012, 02:30 PM   #6
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Angle of cut


360 degrees in a circle--divide by the number of corners--then half of that for the miter angle--
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Old 07-27-2012, 02:45 PM   #7
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Angle of cut


For shapes in a simple plane ...

180 degrees divided by the number of sides

examples

180 / 4 sides = 45 degrees
180 / 6 sides = 30 degrees
180 / 10 sides = 18 degrees
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Old 07-27-2012, 02:53 PM   #8
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Angle of cut


Google is your friend....

http://en.wikipedia.org/wiki/Decagon

The angle depends on which reference you want. Internal angle is 144 deg.....or 36 deg from each point....(360 deg/10)

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