This is a link to my ellipse class planes in numerical order.

Ellipse V-1.0
Ellipse V-1.1
Ellipse V-2.0
Ellipse V-3.0
Ellipse V-4.0
Ellipse V-4.1
Ellipse V-4.2
Ellipse V-4.3
Ellipse V-5.0
Ellipse V-5.1
Ellipse V-6.0
Ellipse V-7.0