To: atm{at}shore.net
From: "Matthew L. Brown" 
Reply-To: "Matthew L. Brown" 


Russ,
  I've done a lot of polishing on a sawed off piece of shelf covered with
newspaper on my lap sitting on my sofa.  I keep a bucket next to my feet
and a towel next to the bucket.  Works pretty well and the wife doesn't
mind since it is quiet and not very messy.

My normal figuring place is a 2 foot wide part of one table.  I move there
because I use rouge and I'm not going to risk the stain.  Even so, when I
add a bar of soap next to the bucket, it is easy to keep rouge in control. 
It only gets on the lap, the mirror, the newspaper, and the bucket.

If you need evidence for the wife, I can send a photo of me doing 12 micron
using the same setup.

=Matt

>Delivered



>-To: mlbrown{at}0
>X-Originating-IP: [67.75.70.191]
>X-Originating-Email: [russjocoy{at}hotmail.com]
>From: "Russell Jocoy" 
>To: atm{at}shore.net
>Bcc:
>Subject: ATM Cookin' up a scope
>Date: Mon, 14 Jul 2003 22:18:01 -0400
>X-OriginalArrivalTime: 15 Jul 2003 02:18:02.0090 (UTC)
>FILETIME=[513B24A0:01C34A77]
>X-Scanner: exiscan for exim4 (http://duncanthrax.net/exiscan/)
>*19cFLE-0007Cp-00*dI.VqYRlWas*
>Sender: owner-atm{at}shore.net
>Reply-To: "Russell Jocoy" 
>X-Report-Errors-to: mikell{at}optonline.net
>
>
>("atm{at}shore.net")
>
>    Hello all,
>
>    I have still not picked up my pitch lap as it melts in the south
> Florida heat of my garage. I do believe
>that this is the reason for my turned down edge. I have figured out that
>the heat in my polishing area
>has caused my lap to flatten on every session, and close the channels way
>too fast. Now I must bring
>the edge back out, ( it's more than 1/4" turned)...
>                          When I found out the problem I quit
> polishing....I was pissed... yeah those stupid rookies,
>won't they ever learn... Well they do by trial and error. Don't get me
>wrong I will not give up, oh no,
>I'm old enough to know that time is golden and make your little dreams
>come true so that they can be
>big ones when they grow up.
>                             To give all an update, I am working on 2
> mirrors.. one is a 9"x5/8" thick (this is the
>polished turned down edge disk)  the 2nd is a 10"x5/8" disk
that is past
>5micron waiting for his sister
>to pass the parob threshold.  Both mirrors are plate glass and thin.  Both
>mirrors have been supported
>completly through all grinding and polishing processes. Both mirrors have
>never left the table , or barrel,
>tool on top all the way. The 9" had  a not so radical ronchi run before
>the edge turned.
>              My ronchi rig is set up so that the mirror is
> tested  looking down from  eye level to the ground.
>  This tends to help the mirror from flexing. I used the foam shelf liner
> for the back mirror support.
>           Well like I said I have quit polishing. I can't move inside the
> house..so I do believe I will have to
>bite the bullet and get a window unit AC for my garage.  The temps. are
>now at 90 degrees and  this
>summer the best I can do is bring it down by 15 degrees. Maybe this will
>work and harded the pitch
>to get a decent figure.
>             Well in the meantime I have been building the mirror box,
> stand, trusses and cage for this
>mirror so I can test. All is going fine, I have made my own spider and
>have a diagonal from the surplus
>shed (for temperary purposes). I have gazed at the lunar surface with the
>9" incomplete mirror which
>brought my spirits up as to how an incorrect surface can actually give you
>a half decent view.
>                  To end I have one question .. the throat of my focuser
> cage is the same diameter as my
>9" mirror... is this diameter sufficient for incomming light. My mirror is
>f/4.7 and the focal length is 42.5"
>                                           I will update my progress as I
> have much more glass to figure besides
>the two I am now working on. I have three 3/4" blanks for future
>projects,.. 12".. 14"...16"  which will be
>done in progession...      Thanks to all.... Russ Jocoy
>("atm{at}shore.net")
>
>_________________________________________________________________
>Help STOP SPAM with the new MSN 8 and get 2 months FREE*
>http://join.msn.com/?page=features/junkmail
>
>

--- BBBS/NT v4.01 Flag-4