[ATM] Aluminum disk uses, subject lines

[Mike Lockwood <melockwo@uiuc.edu>]

Hi,

Vladimir Galogaza wrote:
> Well done. I wish this will be general practice for all of us.
> Unfortunately more often than not, real subjects are changed and
> hidden under the same thread names in developing discussions.

Yes, I need to do it more myself, but everyone forgets the subject 
line at some time.

I changed the subject line again.  :)

> PS What are you and your friends using those disks for?

I am building a new tester using two of them.

I use one bolted to the top of a sturdy tripod as a platform to place 
my Foucault testers on.

I used one as the turntable on my small grinding machine.  I also tend 
to put them on top of my grinding stand as a very flat surface on 
which to work mirrors when figuring by hand.

We have used two, riding on rollers, as side bearings on our club's 
16.25" Cassegrain (see my web page).

Also, they make great pitch lap substrates - just drill a hole in them 
for the quill to fit in.

They also should make a solid optical table for interferometer parts, etc.

	Mike Lockwood

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