ATM Off axis parabola

[BRENT WATSON <bjwatson@IOMEGA.COM>]

Hello,

I am new to this list, but from the stated goals of the group, maybe
someone can help me with a request.

I am not new to mirror grinding, and have ground many mirrors from 4
inch to 22 inch diameter.  I am contemplating starting a new one (my
hands are getting itchy).  This one will be a 16 inch, but would like to
make it an off axis parabola to eliminate the secondary obstruction.  Can
anyone share the technique for doing this, or recommend a book or
paper that describes it?

Thanks,
Brent Watson