TIP: Click on subject to list as thread! ANSI
echo: atm
to: ATM
from: kim.eilertsen{at}dk.abb.com
date: 2003-04-29 11:44:54
subject: Re: ATM Pitch Lap Stuck to Mirror -Ouch!

To: atm{at}shore.net
From: kim.eilertsen{at}dk.abb.com
Reply-To: kim.eilertsen{at}dk.abb.com


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I think that before you try any drastic things like heating it all on a
heatingplate etc. you should simply try to put your mirror and lap in the
freezer. I believe that chances are very big that your mirror will come
loose. This works because glass and pitch have diffrent heat expansion
coefficients.

Good luck

May the CPU be with you!

Kim Eilertsen






Robert Fifarek {at}shore.net 29-04-2003 07:17
Please respond to Robert Fifarek  Sent by:       
owner-atm{at}shore.net
To:        atm{at}shore.net
cc:         (bcc: Kim Eilertsen/DKABB/ABB)
Subject:        ATM Pitch Lap Stuck to Mirror -Ouch!
Security Level:?        Internal


This message is to all grinders and experienced types to reveal the secret
to separating a plate glass mirror partially stuck to a Gugolz No. 73 Pitch
lap on a concrete base! By partially I mean I did what probably many first
timers did. Did not press mirror on tool soon enough to achieve complete
contact with soft pitch after pouring onto concrete base. AH HA! I know
what to do! Great idea! Proceed to put cerium oxide slurry and soap on
mirror (mirror not stuck yet) and put on misshapen pitch lap in car on hot
day! That way hear of sun and inside car will soften pitch and weight of
mirror on pitch will allow pitch to gradually conform to curve of mirror!
(Now mirror stuck) Only problem is it took over and hour and still did not
get to shape of curve. Oops. So now after grinding for two years, I have a
very nice plate grass f4.1, 16" dimater mirror attached to a concrete
base pitch lap (about 40% contact) and pondering my chances of  ever
realizing its completion. Any ideas?

Rob in Ramona





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I think that
before you try any drastic
things like heating it all on a heatingplate etc. you should simply try to
put your mirror and lap in the freezer. I believe that chances are very big
that your mirror will come loose. This works because glass and pitch have
diffrent heat expansion coefficients.

Good luck

May the CPU be
with you!

Kim Eilertsen








Robert Fifarek
<robojun{at}juno.com>{at}shore.net
29-04-2003
07:17
Please respond to Robert
Fifarek <robojun{at}juno.com>
Sent
by:    
   owner-atm{at}shore.net
To:    
   atm{at}shore.net
cc:    
    (bcc: Kim Eilertsen/DKABB/ABB)
Subject:    
   ATM Pitch Lap Stuck to Mirror
-Ouch!
Security
Level:?    
   Internal


This message is to all grinders and experienced types to reveal
the secret to separating a plate glass mirror partially stuck to
a Gugolz No. 73 Pitch lap on a concrete base! By partially I mean
I did what probably many first timers did. Did not press mirror
on tool soon enough to achieve complete contact with soft pitch
after pouring onto concrete base. AH HA! I know what to do! Great
idea! Proceed to put cerium oxide slurry and soap on mirror
(mirror not stuck yet) and put on misshapen pitch lap in car on
hot day! That way hear of sun and inside car will soften pitch
and weight of mirror on pitch will allow pitch to gradually
conform to curve of mirror! (Now mirror stuck) Only problem is it
took over and hour and still did not get to shape of curve. Oops.
So now after grinding for two years, I have a very nice plate
grass f4.1, 16" dimater
mirror attached to a concrete base pitch lap (about 40% contact)
and pondering my chances of  ever realizing its
completion. Any ideas?

Rob in Ramona





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