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I Think I Have It Now (again?)

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Posted by Thomas Picciani on January 10, 2003 01:43:12 UTC

I went through an ATM archive that I saw on the web and found a message that said that TUE can be corrected with MOT short strokes or TOT long strokes. The MOT short strokes didn't seem to do much so I went to TOT long strokes.

The TUE was pretty severe as viewed both through the ronchi grating and the foucault test. I could actually see the edge in 3d. The ronchi grating showed D shaped patterns at either end while inside COC. That has improved now that I did the 3 trips around the mirror using long TOT strokes. Am cold pressing again for 10 minutes and will do another 3 or 4 trips. I think that will put me close.

Tom P.

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