From: Larry Sayre 
To: ATM 
Reply-To: Larry Sayre 


I've been using PLOP to try and design a mirror cell with less than 1.50e-6
mm maximum RMS error, and a 27 point cell simply will not reach this level
for my thin 30" mirror.  Since PLOP auto cell design does not handle
beyond 27 points,  and I can't figure out how to set it up for 36 points
manually, I was wondering if someone with more knowledge in this matter
could take my mirror specs and plug them into PLOP, then run it manually
for a 36 point cell, allowing angles to vary, and allowing for refocus and
mirror tilt, then forward the output to me as a file that I can then
re-input into PLOP myself to recover the design and RMS output parameters. 
Here are my basic Newtonian mirror specs:

diameter = 762mm
thickness = 40mm
material = 7740 Pyrex
central obstruction = 127mm
focal length = 3048mm

Lawrence Sayre

--- BBBS/NT v4.00 MP