ATM 14.5 I.S. figuring progress...learning process

["Stan Kohut" <natsp@alltel.net>]

> Hello everyone:
> After about 300 hrs of grinding and figuring unsucessfully with my
turntable
> I think I am getting the hang of it.
> After all the torture the 3/4"(.750") blank I started with is now .643" at
> the edge.
> I am using some so so ronchi lines I printed a year ago to figure with and
> usung the foucault to double check the surface.
> The ronchi lines are real close to a smoth figure with no turned down edge
> that I can detect.
> It is really neat watching the surface change in just 3 revouloutions of
the
> turntable.
> I have done the most work this time with a 6" lap then smoothing with a
10"
> with excelent results and its getting close,  best of all I am able to see
> what I am dooing and controll it to some degree.
> BUT... it was 4 weeks ago I told my wife that I only had about 1/2 hour
left
> of figuring...He He
> I wont quit this mirror till I wear a hole through it or learn to figure.
> The scope is in the kitchen awaiting a startest...(taking up alot of
space)
> :-)
> Have a nice week!
> Stan
>
>