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polishing improved ...20 mirror-scope..... 4
(24)
                     Hello to everybody,                  The next evening I went out again with the mirror. First I
zoran stojcevski
24
posts
9:44 PM
return to fine grinding
(5)
... Jerry's absolutely correct. If you re-grind then that's exactly all that will happen. You'll go into polishing only to turn the edge again. No gain. Lots
rpasken
5
posts
2:38 PM
Re: [ATM] "Telescope Mirror Blanks"
(2)
Good morning Guy Their web page is alive at Telescope Mirror Blanks / TelescopeMirrorBlanks.Com - Grind Your Own Telescope Mirror Telescope Mirror Blanks /
Guy Brandenburg
2
posts
9:19 AM
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"Telescope Mirror Blanks"
(1)
Hello, telescope makers, Wondering if anyone else is having a hard time getting a response from "telescope mirrors.com" Anybody have a phone number? Guy
Guy Brandenburg
1
post
Apr 18
Paul Valelli
(9)
Ali, Paul is recovering but slowly. He had an issue last week that put him back in the hospital. I am not asking the family, I am just taking information and
Francis J. O'Reilly
9
posts
Apr 10
Re: [ATM] [atm_free] Paul Valelli
(7)
I wish the best for speedy recovery. What is meant by most optical surfaces outside the orbit of Jupiter? Ali On Tuesday, 8 April 2014, 8:23, Aldo Moraga
foreilly1
7
posts
Apr 9
Re: Digest Number 3773
(1)
Turned up edge Turned down edge Guy Brandenburg Sent from my iPhone so full of hilarious errors... ;-€}} ... Turned up edge Turned down edge Guy Brandenburg
Guy Brandenburg
1
post
Apr 6
Convex parabola
(3)
Addition I finaly find my reference http://media.skyandtelescope.com/documents/Adler-MirrorFlex.pdf jack Do you speak about FLEX mirror What a TDE? TUE Jack
Guy Brandenburg
3
posts
Apr 5
search for old timer variable 60hz generator
(8)
Some body give me the ups Nothing to do whit But I made lot of spectroscopy in the field far from any electricity facility If I can start the ups alone in the
savardjacques@ymail.com
8
posts
Apr 2
3D printing
(11)
As an alternative to buying your own 3D printer, give some thought to using a 3D printing service. For example, in Toronto: 3DPhactory.com. Google "3d printing
Michael Coslo
11
posts
Mar 31
Foucault software suggestions
(11)
To enter each new set of readings just click on the [New Mirror Log Entry] text in the far left frame. To see the syntax of the effective radius and hole size,
Gil McFarlane
11
posts
Mar 31
part 2 of Changa Manga astronomy trip
(1)
(3)Journey                 I tried two atm machines but the server was down. I thought there will be more along the way. I rode at my usual safe
Ali Khan
1
post
Mar 30
Part 1 of astronomy trip to Changa Manga Forest Resort on my Honda 7
(1)
Part 1 of trip to Changa Manga Forest Resort on my Honda 70 motorcycle (1)Much before                 Because winter ended earlier in Karachi,
Ali Khan
1
post
Mar 27
TraceXp with decimal comma
(5)
Yes, it seems that I will have to check it frequency. ________________________________ Kimden: Aldo Moraga Kime:
l tf akmak
5
posts
Mar 27
Figuring a convex
(2)
I plan also to used a magnifyer of about 4 inch At about 6 inch focal to reconfigured at long focal for sun observation purpose But I am pretty
Guy Brandenburg
2
posts
Mar 26
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I need capture software...
(16)
Hi Jeremy Thanks for you. I check your link & read it. me & my frind have 1 problame. its to big! my contry mony is the very smal whit the dolars. price the
abbas ahmadian
16
posts
Mar 26
MC3 Goto Controller???
(2)
If you need support Go to this hroup https://fr.groups.yahoo.com/neo/groups/MCMTII/info Jack 47'n 71'W Hi All my frinds I am find a GOTO controller Project in
abbas ahmadian
2
posts
Mar 24
Fw: [M-O-M] Mirror-O-Matic for sale
(2)
Some more details: Great thank you, I am in the process of taking pictures to send to those intrested.. the wood is cabinet grade 3/4" I believe birch .. all
Guy Brandenburg
2
posts
Mar 20
Re: [ATM] [interferometry] a 20" dall-kirkham
(1)
My bad, prolate and not oblate. Guy Brandenburg Sent from my iPhone so full of hilarious errors... ;-€}}
Guy Brandenburg
1
post
Mar 19
Possible reasons for bad performance of my telescope
(15)
Hi Vladimir, I replied to your mail at your personal email id 2 days back. But today I got a mail delivery failure message. is elizabeta.galogaza1 at h-1.hr
madhukar_bhatia
15
posts
Mar 18
a 20" dall-kirkham
(2)
Thank you Guy, I need all information about making CDK and test methods. I will read you article in Bob May's site as soon as possible. I had read some part of
Guy Brandenburg
2
posts
Mar 18
Yan: [interferometry] Making 0,7 meter Cdk
(6)
Thanks Paul, I think my brother has a GWBasic compiler on one of his computers. I will see if he can compile this file. Or if it is not too much trouble, you
l tf akmak
6
posts
Mar 18
Re: [ATM] Yan: [interferometry] Making 0,7 meter Cdk
(1)
Hello Paul Well... I was just about to ask about the formula to determine the location of the foci, and tolerances. If you still have your GW Basic program,
atc322asd
1
post
Mar 17
Making 0,7 meter Cdk
(4)
Thank you for kindly helping Dave, I have known that you have great worked for improvement CDK optical desing. Dou you mean we will have to make a large flat
l tf akmak
4
posts
Mar 16
Mirror blank specifications
(6)
Thanks Paul, You mention the sort of trouble I want to avoid. the 1/4 -inch mistake. Jerry From: atm_free@yahoogroups.com [mailto:atm_free@yahoogroups.com] On
Jerry
6
posts
Mar 14
Introduction
(3)
The f/ratio is in the low f/5 region. Have not done a serious test of it as of yet. It is a scope that I will most likely leave under dark skies in order to
Bill Gardner
3
posts
Mar 12
Re: [Spam] Re: [atm_free] Reducing the weight of a SonoTube OTA???
(5)
Another advantage of focusing by moving the primary is that the secondary spacing can be optimized. My rotator is going to have 3.75" clear aperture and about
brock.family
5
posts
Mar 11
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How do I test that my diagonal position and offset is correct
(3)
On 3/11/2014 8:18 AM, madhukar@... wrote: Madhukar, your 11"f4.9 makes your fl 53.9, 1/2 your OTA is likely 6.5" add 3" for focuser = a
madhukar_bhatia
3
posts
Mar 11
Reducing the weight of a SonoTube OTA???
(14)
There is one certain way to lightweight... and that is a truss. Don Clement
majorobs14
14
posts
Mar 7
Cloudy Nights Classified
(3)
Here is the statement on CN web site:  "The review page has always been a separate entity from the forum software, but it is time for a facelift so we will
Peter
3
posts
Mar 6
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