From: "Tom Krajci" 
To: 
Reply-To: "Tom Krajci" 


>From: "mlbrown{at}everstrive.com" 

>After 2 days of 15lbs pressing on my little 4=2E25" lap, the channels
have
>barely closed: time to redo the lap with softer pitch (not sure if the
>wife'll let me use turpentine in the house)....

A couple questions:

A.  Can you raise the air temp of the place where you are working your
optics and pressing your lap?

B.  If not, have you tried dunking your lap in warm water, and then
pressing?  ('Warm' may only have to be 5 or 10 deg. F warmer than your
shop's air temp.  Some experimenting may be needed here.)

C.  Based on the pitch hardness test, as described in Texereau, appendix
J...what results did you get?


Tom Krajci
Tashkent, Uzbekistan


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