Paul, have you ever tried to project the elliptical circles on the wall with your tiller tree? I was thinking about that the other day and was wondering how. I saw a program years ago about how to figure and draw elliptical, with 2 nails and a string? Can't remember.
The paint program really helps to see tiller. We need to figure out how to draw it on the wall.
I found a link for a how to draw ellipticals, but not sure if I can post it here?