I was looking for a spiral generator and I found this.
BYW the spiral is under "printable templates"
Tons of stuff, thought I'd share
http://www.blocklayer.com/
Information source
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Re: Information source
Vectric also has a spiral generator gadget that might be helpful.
http://gadgets.vectric.com/spiral.html
http://gadgets.vectric.com/spiral.html