A little more about creating an elliptical plan

Following up on the ellipse.

A Woodworker's Musings

Several folks wrote and said that they were having some difficulty getting their heads around this method.  Well don’t despair.  When I first read about this method, it took me a couple of days for it to sink in.  And, if you don’t have much experience with projective drawing, it’ll take a bit of cogitation.  Of course, at my age, everything takes a long time to sink in.  But it doesn’t necessarily stay “sunk in” for long.

But here’s a little more graphic information that might help.  First off, I elongated the major axis to make the model a little more easily understood.  So remember, A-B is the Minor axis, A-C is the Major axis.  I’ve divided the A-B line into equal segments (with a couple of little “cheater” segments at the ends.

001

Again, I extend the segments at right angles to the diagonal line and transfer the line measurements…

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About George Crawford

archaeologist, archer, primitive technologist, and wannabee musician ... mostly
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