[ATM] Mirror stuck on pitch lap

[Jerry]

I should have asked if you had channeled the lap yet. I assumed it was not
channeled so my previous reply was mostly concerning if the lap had not yet
been channeled. 

It still works if a channeled lap has stuck to the mirror, and of course it
is much easier to separate. Takes maybe 1 or 2 minutes and not so much
force.


Take note of this reply from Ulhas. Sometimes things are just to easy.

Jerry

-----Original Message-----
From: Ulhas Deshpande
Sent: Monday, February 05, 2007 1:30 AM
To: atm at atmlist.net
Subject: Re: [ATM] ATM Digest, Vol 38, Issue 6

Patience!!.
  Just put the sandwich on edge in a bucket of water . Leave it overnight
and you will find the mirror and tool have slipped apart.
  I know. I did it twice (Groan)
  Ulhas






-----Original Message-----
From: Francis J. O'Reilly
Sent: Sunday, February 04, 2007 8:16 PM
To: atm at atmlist.net
Cc: mirrorworkshop at mtbparker.com
Subject: [ATM] Mirror stuck on pitch lap


Guys and ladies,

I poured a pitch lap today (Gugolz 64) and while hot pressing with cerium
on the mirror, it became stuck to the pitch lap. I have tried putting the
entire project in the freezer for a couple of hours to unstick them, to no
avail. I tried the bigger hammer method by knocking on the dental stone
tool with a hammer shielded by a piece of wood, no luck.

Any suggestions?

Francis J. O'Reilly