quarterpipe

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http://home.att.net/~waterfront-woods/Articles/Ellipse/stringellipse.htm

Drawing elipses with string and pencil websnapr

Excellent illustrated plans for a small quarterpipe
>30 days ago by Bren, 1 User, more info save
http://www.slapmagazine.com/new_site/woodshop/quarter/index.shtml

SLAP - QUARTERPIPE websnapr

Nice roundup of all the self help books in the world. :-)
>30 days ago by Bren, 1 User, more info save