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[ATM] failures
i am sorry not to explain in detail about my failures.
the 2 concave mirrors(6" and 10") are complete
mirrors. both were commercially made and have the same
problem of astigmatism and reflective coating being
bad and the concave lenses are of low quality hence
galileo telescope gives bad results. the rest are
different eyepieces of different focal lengths from
different vendors which in the end left me with no
choice but to pray for a miracle :(
i have not given up yet. i have talked to another
vendor to whom i will give exact details/figures of
the mirror and he will try to make it for me.
Saqib
--- Richard Schwartz <richas@earthlink.net> wrote:
> I don't understand... why are these failures? You
> have not completed them.
> All you need is fine abrasives to do the fine
> grinding, and a polishing
> tool. I remember a guy in India who could not get
> the fine abrasives, so he
> got a grinding wheel and smashed it with a hammer
> until there was nothing
> but dust. Then he mixed the dust with water and let
> it settle to separate
> the large grits from the fine grits.
>
> I have never tried this. But high on my list of
> things to try is making my
> own pitch. A long time ago I did not have pitch,
> so I went into the forest
> and got it from trees. This pitch really did
> polish the glass, but it had
> a lot of grit in it. The problem is how to purify
> pitch to get rid of the
> grit. Some day I will teach the ATM world how to do
> it.
>
> . . . Richard
>
> -----Original Message-----
> From: atm-bounces@atmlist.net
> [mailto:atm-bounces@atmlist.net] On Behalf Of
> Saqib Sajjad
> Sent: Friday, September 16, 2005 12:18 AM
> To: Ken Hunter
> Cc: atm@atmlist.net
> Subject: Re: [ATM] Care package for Mahmood
> (9/13/2005)
>
> i have no objection in recieving a blank as sooner
> or
> later i will have to make my own mirrors.if i get
> exact grit sizes needed even then i wont be able to
> get fine reflective coating on it even commercially
> set aside the other difficulties i will face in
> completing the mirror.
> have a look at the failures i had till now....
>
>
http://www.craftspakistan.com/astronomy/6%20inch%20and%2010%20inch%20useless
> %20mirrors.JPG
>
http://www.craftspakistan.com/astronomy/concave%20lenses.JPG
>
http://www.craftspakistan.com/astronomy/eyepieces.JPG
>
http://www.craftspakistan.com/astronomy/galileo%20telescope%2033x%20with%20m
> y%20own%20focusing%20mechanism.JPG
>
> Saqib
>
> --- Ken Hunter <atm_ken_hunter@yahoo.com> wrote:
>
> > Hi Mike,
> >
> > Firstly, I'm relieved to hear that your family is
> OK
> > and no slight was taken, I was just trying to be
> > complete in my reporting to the list.
> >
> > We've had another request for glass but I'm not
> sure
> > if the person is asking for a mirror (completed)
> or
> > a blank. I'd rather ask for a blank and supplies
> > donation than send a completed optic as this is an
> > Amateur Telescope MAKING list with an emphasis on
> > grinding and polishing your own optics HOWEVER...
> If
> > anyone has a finished optic that they wish to
> > donate, I'll forward it on.
> >
> > I plan to mail Mahmoods package Monday or Tuesday
> > and will then know better the costs involved in
> > shipping packages to Pakistan. I cannot help but
> > feel that we have enough funds to cover both
> > shipments but I have been wrong a couple times in
> my
> > life and could be wrong here also...
> >
> > I'll keep the list posted.
> >
> > Ken Hunter
> >
> > Michael Lindner <mikell@optonline.net> wrote:
> > On Tue September 13 2005 10:12 pm, Ken Hunter
> wrote:
> > > I sent an eMail to Michael Lindner asking about
> > how to send any remaining
> > > funds to the atmlist owner or management team
> and
> > received no reply. Sent
> > > another eMail to Ken Lowther and he replied that
> > the list has NO expenses
> > > to contribute to so... He suggested that I save
> > the remainder for the next
> > > Care Package to go out... I'd rather not be in
> > that position as it would
> > > (or might) be seen as a conflict of interest???
> >
> > My apologies for not responding to you Ken. Around
> > the time you sent it my
> > wife and children were in an auto accident (they
> are
> > all right) and I let a
> > few other things in my life lapse. There was no
> > slight intended.
> >
> > There *are* expenses associated with the ATM list,
> > although Ken would not
> > admit it. Both Ken and Simeon Ivanov provide
> servers
> > and bandwidth for the
> > list. Although they do not charge me anything,
> they
> > have expenses
> > (electricity, maintenance, hardware, their time,
> > etc.) of unknown amount. My
> > own outlay is a more modest 30 euros/year, for
> > rights to the names
> > atmlist.net, atmlist.org, and atmlist.com plus my
> > time, which I gladly and
> > freely give.
> >
> > Any of the suggestions you have put forward are
> fine
> > by me. I have no stake in
> > it, nor do I feel it would be a conflict of
> interest
> > on your part. If you do
> > want to contribute to list expenses, I would not
> > turn it down, although I am
> > not asking you to. Likewise, if you want me to
> just
> > hold the money until the
> > next time list members need it, I'd be happy to do
> > that. I have a paypal
> > account under mikel@att.net
> >
> > Clear skies.
> > --
> > Michael Lindner
> > http://www.starastronomy.org ***
> > http://home.att.net/~mikel
> > http://www.atmsite.org *** http://www.atmlist.net
> >
> >
> > ---------------------------------
> > Yahoo! for Good
> > Click here to donate to the Hurricane Katrina
> > relief effort.
> > _______________________________________________
> > ATM mailing list http://www.atmlist.net/
> >
>
>
>
>
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