RE: [ATM] RE:anealing

["Scott Milligan" <starzkey@charter.net>]

Clever idea.  That would be one heck of a sturdy rail & carriage.  In fact,
I wonder if it might not be easier to just break down and make the large
flat?  I'm guessing an answer to that one probably depends on how you define
large, and what you have available to work with.

Scott Milligan

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Andy Saulietis
Sent: Wednesday, May 25, 2005 4:22 PM
To: 'ATM LIST'
Subject: RE: [ATM] RE:anealing

Re,


>It IS NOT NECESSARY  to use a full aperture flat to test a primary mirror.


One could put the subaperture flat on a sliding kinematic
carriage, with the usual tilt adjustments on the flat.
The flat is aligned to the primary positioned to be concentric
with the primary, then slid laterally to view the surface
between the edge and center of the primary. Note that the slide
does not neer to be aligned to the optical axis, just that it
traverses without changing the normal to flat.






Andy Saulietis
ISS Enterprises
10 Milky Way
Mayhill NM 88339


World's first astronomy land development:

http://www.pvtnetworks.net/~iss/starend1.htm

15 of 17 lots sold to astronomers as of 2/08/05

505-687-3067 voice/fax, call voice or e-mail to set up
e-mail: iss@pvtnetworks.net

Also available: Custom large telescopes/mounts,
25 & 50 mm manual filter wheels, HDPE worm gears & clutches,
HDPE friction drives, CCD sliders & turrets, custom
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