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atm_free · Amateur Telescope Making

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Group Information

  • Members: 1512
  • Category: Telescopes
  • Founded: Jun 1, 2002
  • Language: English
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Messages 9460 - 9489 of 23387   Oldest  |  < Older  |  Newer >  |  Newest
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9460 timavv@...
tiafolla6505 Send Email
Aug 1, 2006
9:25 am
In a message dated 7/31/2006 4:36:25 P.M. Eastern Standard Time, richas@... writes: Everybody is white and christian.... I assume (hope) you are...
9461 Richard Schwartz
theoboehm Send Email
Aug 1, 2006
4:20 pm
I sincerely apologize for offending your Christian faith and for the tragic reversals your race has suffered in its effort to colonize and conquer the entire...
9462 pinbackakabillfreug
pinbackakabi... Send Email
Aug 1, 2006
5:54 pm
... blue ... Richard, Doesn't your pal Mel Gibson live down there in third-world L.A.? Also Herr Arnold? -Bill...
9463 Vorpal Swordsman
vorpalswordsman Send Email
Aug 1, 2006
7:28 pm
Yes, I know I can buy one for a paltry hundred bux -- not to mention the fact that I have a working straight-through finder, but... I have a notion to make my...
9464 Bob May
a52chevybob Send Email
Aug 1, 2006
8:02 pm
Stay at the coarse grit until you get near the ROC you desire. Long strokes will shorten the ROC when the mirror is on top. Short strokes tend to make the...
9465 Bob May
a52chevybob Send Email
Aug 1, 2006
8:11 pm
RACI???? I assume that you mean a right angle finder by that bit of the compression of a phrase. A refracting telescope is a refracting telescope. Figure out...
9466 Jack & Jan Pinkham
jjpinkham2003 Send Email
Aug 1, 2006
8:13 pm
In a previous letter Richard Schwartz wrote "You need to review the three volume ATM set and put on a coat and tie when you are polishing, like the guy on the...
9467 Joe
nssdz Send Email
Aug 1, 2006
8:30 pm
I tried doin that but the tie kept getting stuck in the pitch. Joe...
9468 Mitchell
moonman1867 Send Email
Aug 1, 2006
9:00 pm
... some say paying attention to keeping the tie dry helps you randomize your stroke more and make a smoother surface ;) Mitch...
9469 Jerry
atc322asd Send Email
Aug 1, 2006
9:34 pm
Thanks for the comments on making my 22" Dob project an f:6. No one commented positively. So maybe I will take advantage of the pre-gen'd f:4.5 curve and...
9470 mtolb25356@...
tolbauctions Send Email
Aug 2, 2006
12:12 am
In a message dated 8/1/2006 12:22:57 P.M. Eastern Daylight Time, richas@... writes: young women with the tatoos, tongue piercings, and nose rings....
9471 Mitchell
moonman1867 Send Email
Aug 2, 2006
12:12 am
... one ... gen'd f:4.5 ... Hey, if you want the F/6, go for it. Most people told me (directly or indirectly through research) not to try black rouge. But...
9472 Mitchell
moonman1867 Send Email
Aug 2, 2006
12:15 am
Hey guys. I was sort of looking foward to my next project. I was thinking of a 10". I might make it out of thin plate since it is cheaper than pyrex and I...
9473 Mark Holm
holmmd17 Send Email
Aug 2, 2006
2:14 am
... Perhaps this will be helpful: http://www.atmsite.org/contrib/Holm/Plop_optimized_cells/design_space.html -- Mark Holm mdholm@......
9474 mtolb25356@...
tolbauctions Send Email
Aug 2, 2006
2:16 am
mitch ive made a 15" out of 3/4 and it was fine ive seen a 30" out of 1" if you can get...
9475 Richard Schwartz
theoboehm Send Email
Aug 2, 2006
6:51 am
The dry cleaner can't figure out how to remove the red rouge stains from my coat sleeve. I suggested oxalic acid, but he refuses to consider it. Same as...
9476 Richard Schwartz
theoboehm Send Email
Aug 2, 2006
7:24 am
Take about 1/4 teaspoon of that black rouge, and sprinkle it in strategic spots in the ladies room, and see what happens. ... From: atm_free@yahoogroups.com...
9477 Richard Schwartz
theoboehm Send Email
Aug 2, 2006
7:25 am
My wife has none of that hardware, and is sexier than your wife (once every six years whether I need it or not). ... From: atm_free@yahoogroups.com...
9478 Richard Schwartz
theoboehm Send Email
Aug 2, 2006
7:29 am
I would be delighted to provide a 3/4" x 11" blank. It would be the same level of difficulty as a 3/8" x 8" that I successfully did. I have lots of 3/4" glass...
9479 Charles Mitchard
charlesmitchard Send Email
Aug 2, 2006
2:01 pm
shouldn't that be a 13.3374" blank? ... http://members.iinet.net.au/~charlesmitchard/index.html -- Internal Virus Database is out-of-date. Checked by AVG...
9480 Mitchell
moonman1867 Send Email
Aug 2, 2006
3:26 pm
I'm thinking the 1.25" is my best bet. Thinner than 1.6" but I'll have to worry less about support when making the mirror and in use compared to 1". I don't...
9481 Richard Schwartz
theoboehm Send Email
Aug 2, 2006
4:49 pm
Every time you double the area, you must double the thickness. So you can imagine the series of numbers, 4, 5.6, 8, 11, 16, 22, just like camera f-stops,...
9482 tony gondola
acgna Send Email
Aug 2, 2006
5:31 pm
Yes but you'll be driven more by what you can get...... Tony ... From: Mitchell To: atm_free@yahoogroups.com Sent: Wednesday, August 02, 2006 8:22 AM Subject:...
9483 Mitchell
moonman1867 Send Email
Aug 2, 2006
5:39 pm
... I can easily get it from Newport (depending on their organization). I asked for quotes on 1.6", 1.25", and 1" thick, not very expensive for plate glass....
9484 Bob May
a52chevybob Send Email
Aug 3, 2006
12:17 am
I'd easily go to a 3/4" blank without any fears as I've already done some 12" mirrors that thick and one guy is working on a 17" that thick right now. A 1/2"...
9485 Richard Schwartz
theoboehm Send Email
Aug 3, 2006
7:52 pm
There must be some good news there. Mead stock seems to have reversed its one-way trip down the toilet, and has gained 8% today....
9486 tony gondola
acgna Send Email
Aug 3, 2006
8:57 pm
They have likely laid off a bunch of the overpaid US workforce with much of the optical work shifted from China to the ongo bongo people of Chad. Moves like...
9487 Richard Schwartz
theoboehm Send Email
Aug 4, 2006
1:38 am
Yeah, but where else can you go if you need a place where slavery is legal? ... From: atm_free@yahoogroups.com [mailto:atm_free@yahoogroups.com] On Behalf Of...
9488 Mitchell
moonman1867 Send Email
Aug 4, 2006
1:06 pm
... much of ... Hey maybe they'll send a bunch of more junk mirrors through like some of their old 16" starfinders, for us to buy cheap, refigure then sell :) ...
9489 tony gondola
acgna Send Email
Aug 4, 2006
1:55 pm
Hell, so much for my secret business plan................ Tony ... From: Mitchell To: atm_free@yahoogroups.com Sent: Friday, August 04, 2006 6:06 AM Subject:...
Messages 9460 - 9489 of 23387   Oldest  |  < Older  |  Newer >  |  Newest
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