On 4/17/2013 7:18 AM, Doug Miller wrote:
(Larry W) wrote in news:kkl297$pbb$1
@speranza.aioe.org:

I've seen the technique described elsewhere, but this was the first
google result on searching for "how to draw an arc of large radius"

Look at step 1 on this site:

http://www.instructables.com/id/How-...-Large-Curves/

I don't immediately see how to prove or disprove it... but my first impression is that that method
draws an elliptical arc, not a circular arc.



I agree, the material used would have to be uniform in stiffness from
one end to the other and you would have to have pivot points beyond the
start and stop points at the same intervals AND pivot points would have
to be precisely placed to obtain a circular arc.