angle math help for artist who is math challenged

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Title:	angle math help for artist who is math challenged
Posted on:	05/01/2009 00:40:02
Category:	Dome theory
Author:	jacques


I am building a 28 inch diameter sculpture of a 3v geodesic sphere, I am a sculpture graduate student. i have been doing quite a lot of research and found all of it fascinating and interesting however I am having trouble with some application. I have found all of the lengths for my a,b, and c struts on my sphere, but I am building it out of flat pieces of 3/8" thick birch, and I don''t know specific numbers on how to bevel each side of the triangles to fit, Ive done some playing around, but I''d like to work out a system so i could replicate relatively accurate results by making a jig to cut everything. Basically I have figured out that the bevel angle between the sides of pentagons should be 7 degrees, this seems to fit, but I cant figure out the hexes or for the base sides where the hexes meet the pents and other hexes, any help would be very appreciated from a lowly artist, thanks.

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