ATM MakNewt Project

[Bill & Tracy Marriott <btk@pacbell.net>]

Further update in the 6" MakNewt Project

Almost thought I had the corrector nailed, but no matter what I did, 
couldn’t stop the cx side from flattening out, even with cc tool on top, 
even with an accentuated edge working stroke, and only by cutting a star 
into the center of the lap, could I finish polishing out the edge, with 
out it flattening more, but, by then it was to late.

So, ground it significantly too deep, and will use the lap with the star 
in the center cut out, till the edge is polished out, then with a normal 
lap, will let it drift on in to spec. Thickness changed from 

This has actually been fun, as well as educational.

Concave side is polished out, and is drifting into spec, getting deeper 
as we go, cc corrector on top. .00015" more to go in the sag.

Wedge is less then .0001"

Onward..

-- 
Bill Marriott
Woodacre, Ca. USA
btk@pacbell.net

http://www.starlightoptical.com
Optical/ATM projects

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