Quote:
Originally Posted by Garyh
does anyone have advice that might be helpful?
Would I stick with my full size lap for this? and would I need to modify the figuring stroke? and how long for a first session?
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Hi Gary,
I've recently finished a 10"f4. thew! fast mirrors are sure harder to figure!
I used a 60% tool, working TOT. I started out with a 30 minute session of W strokes concentrating mainly CoC and the closer I got to the paraboloid, the shorter the time. The penultimate last step was only once around of no more than 2 minutes and the very last session was 2 minutes with my thumb dipped in CeOx to deepen the very centre.
figure-test-figure-test-fig..... you get the idea!!!!
It was an experience not to be missed IMHO.