Re: [ATM] 12.5 inches BVC advice for parabolizing

["Virgil.Johnson" <virgilaj@charter.net>]

Done a lot of work one one day!  No doubt things were still warm when you 
took the last pictures.  You may want to take more pictures just before your 
next session, after the temps are stable. You may find they are not exactly 
the same as now.

Your picture series is quite an educational tool. Be sure to keep good 
notes.  Looks like things are flattening out nicely. Your crater, at the 
start had a shoulder to it, so you may just be seeing the broader base of it 
now without the central hole.

Virgil
Raider of the Lost Dark


----- Original Message ----- 
From: "RM L" <atm@axeinformatique.com>
To: <atm@atmlist.net>
Sent: Sunday, July 10, 2005 6:42 PM
Subject: [ATM] 12.5 inches BVC advice for parabolizing


> Hello again,
>
> I'd love some advice as what approach to take when I continue the work, on 
> another day. I do not want to mess up, and you may see allready a bad 
> tendency in my images... that I wouldn't see.
>
> I update my site with the last photos for the day.
>
> http://www.axeinformatique.com/temp/Mirror/BVC_Mirror.html
>
> The zoning is allmost gone now.
>
> I'm using standard parabolizing W stroke, going up to 1,5 in of the 
> border, with the center of mirror.
>
> Should I keep doing the same thing ? It's the edge that scares me a 
> little... Is it parabolizing quicker than the rest ? Am I worstening the 
> TDE ?
>
> I don't want to waste energy curing the TDE, but I would'nt want to make 
> it worst.
>
> Thanks all for your time, patience, and help.
>
>
>
>
>
>
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> 

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