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Discussion: wishing well rim
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Posted Anonymously |
wishing well rim
Apr 28 2008, 11:56 PM EDT
I need to make a wishing well with an octagonal rim, using 2x6 material. How do I figure the length of each segment so that the inside dimensition is a pre determined size? I know the angles have to 22 1/2 degrees, but I am stumped as the the length. I am sure there is a formula to figure this out, but I AM STUMPED. john jkeasey@comcast.net thanks
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Posted Anonymously |
1. RE: wishing well rim
Apr 30 2008, 3:22 PM EDT
found the answer in a crown moulding book. Take outside (finished) length and devide by 0.414, this gives the long length of each segment.
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Posted Anonymously |
2. RE: wishing well rim
May 19 2008, 1:38 AM EDT
There is a basic formula for figuring out the length of each side of an octagon all you have to do is google it another way is to make a template and snap some lines
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Posted Anonymously |
3. RE: wishing well rim
Jan 24 2009, 9:36 PM EST
the length is what's called the chord length of a segment of a circle. You can look up chord length calculators on google
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