Subject: RE: 2.5m obslog 20031219 (MJD 52993)
Date: Mon, 22 Dec 2003 22:56:13 -0700 (MST)
From: sjnk@apo.nmsu.edu (Scot Kleinman)
>I would bet that remounting actually sometimes fixes the plate position;
>I have never been convinced that the latches are capable of always
>properly seating the cartridge in the kinematic mounts. There is
>a lot of friction, and if the lubrication has been neglected and/or
>it is cold, I think the centering can be bad. The cartridge cart
>has no lateral or rotational compliance to speak of, and the mounting
>forces can be large.
Exactly why we try this. Anecdotal evidence has shown this works sometimes.
Is this really the explanation? Possibly, but who knows? But, if it works,
and doesn't take much time, why not!? :>
Scot