From: "David Stevens" 
To: "ATM" 
Reply-To: "David Stevens" 



 My question is: What stroke,tool size, position MOT or TOT should I use
 now??

  I have been working for three weeks on and off COC MOT for probably 4
 hrs total. I have been working 5 min and then pressing 5 min and finally I
 am happy to report the edge is making a comeback. It's not quite there yet.
The right side is still quite a lot brighter than the left side but a least
 its coming back. I probably have a couple hours to go but I am encourage.

I first used the classic MOT long W stroke to parabolise but that didn't
 seem to get me to full correction.

  Then I used accented pressure TOT which got me a lot closer (.96 strehl)
 but the edge slowly turned.

 The mirror is 8" F/3.9 I am using medium Gugolz and ambient temp is right
around 70 deg.

  I'm using Cerium oxide and a full size tool.  I also have a 4" tool for
subdiameter figuring.

I am using a slitless foucault and the light source is moving and on the right.

 Any suggestions would be greatly appreciated.

 Thanks
 Dave Stevens

--- BBBS/NT v4.00 MP