JAF, Thanks for the reply. Don't worry about slow replies I know how life has many priorities. I just have ask more questions though. Did you by chance have...
4304
pdebaan
Oct 28, 2004 6:05 am
... the ... I ... and ... mirror ... helpful ... as ... mirror. ... Jaf, From Ken's and your description, I read there are two different ways of setting up the...
4305
atmpob
Oct 28, 2004 6:54 am
Just one more reference point. I had a friend bring over his null flat. We removed my Foucault tester from my photo tripod. The mirror is on another table....
4306
James Mulherin
jamesmulherin
Oct 28, 2004 12:10 pm
Thanks John :-) James James Mulherin Optical Mechanics, Inc. jcmulherin@... www.ProSpecMirrors.com Tel: (319) 351-3960 Fax: (319) 351-3943...
4307
jaf4oct
Oct 28, 2004 4:55 pm
... All, My flat setup description uses a common flashlight to aid in the setup and alignment of the optical surfaces. The light source used in the testing...
4308
jaf4oct
Oct 28, 2004 5:02 pm
... Rob, No, I had nothing to do with the Mars rovers. I changed careers and no longer produce optics commercially, though I still have friends in the...
4309
jaf4oct
Oct 28, 2004 5:09 pm
Richard There is a simpler yet effective solution to your problem. I am assuming your exit surface is flat. You can greatly reduce the chipping by waxing or...
4310
glasspusher2001
Oct 28, 2004 6:04 pm
Who can make 25" ones with 1/2" plate? And how much would it cost?...
4311
Richard Schwartz
theoboehm
Oct 28, 2004 6:54 pm
I hope to be making them in about a year. But if you want pyrex, they will cost plenty! ... From: "glasspusher2001" <glasspusher2001@...> To:...
4312
Bob May
a52chevybob
Oct 28, 2004 10:21 pm
Actually, they can look perfect under the polarization test and still break up like that. The problem is that heat differences will cause differential ...
4313
RON WHITE
ronev910
Oct 28, 2004 11:44 pm
glasspusher2001 <glasspusher2001@...> wrote: Who can make 25" ones with 1/2" plate? And how much would it cost? This one is ½” soda glass, but only...
4314
glasspusher2001
Oct 29, 2004 6:28 am
I'm interested! Can you put a picture of it in the photo section ( I don't get the emails)? Why is the center glued in? I didn't know 1/2" glass is that cheap....
4315
Jean-Guy Moreau
jean_guymore...
Oct 29, 2004 7:49 pm
Hello Ron, very nice ! is it fused bounded or glued up ? you can see a 25" at http://www.cablevision.qc.ca/astro/25-ins-may04-1.jpg i can make them to 1 meter ...
4316
Ron
ronev910
Oct 30, 2004 5:11 pm
I have placed a photo in the Photo section Jean I'm not close to you or Richards class in glass fabrication, I have tried fuse bonding a few times with...
4317
atm_free@yahoogroups....
Oct 30, 2004 7:20 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the atm_free group. File : /John A's...
4318
John
owl18200
Oct 30, 2004 7:50 pm
... missing ... little different to ... there. This ... 2". Set the ... right so ... the ... about 1.5" ... the 6" ... another 3 ... responding. ... of run ......
4319
James Mulherin
jamesmulherin
Oct 30, 2004 10:51 pm
John: I looked in the files section. It looks like you accidentally uploaded a Foucaultgram in stead of the graph. PS. I'm glad to hear that the edge is...
4320
John
owl18200
Oct 30, 2004 11:06 pm
... uploaded a ... you with ... Halloween so ... old or ... Uh oh, ooops,etc... That was one big motherfoucaultgram! I have replaced it with the proper graph....
4321
John
owl18200
Oct 30, 2004 11:14 pm
... to ... I'm ... James, My son is 16 and recently recieved his drivers license. My daughter is 13, and I am 46 just this past September. My stepdaughter had...
4322
James Mulherin
jamesmulherin
Oct 31, 2004 12:23 am
John: Yup. You're really old. My god, people actually live to 46? What's your secret? James James Mulherin Optical Mechanics, Inc. ...
4323
James Mulherin
jamesmulherin
Oct 31, 2004 12:23 am
John: That's better. Thanks... James Mulherin Optical Mechanics, Inc. jcmulherin@... www.ProSpecMirrors.com Tel: (319) 351-3960 Fax: (319)...
4324
Jean-Guy Moreau
jean_guymore...
Oct 31, 2004 12:39 am
Hello Ron, sorry for your problems with fuse bounding. I have to admit its a very tough thing to do, specially with the larger sizes. You must have very little...
4325
Jean-Guy Moreau
jean_guymore...
Oct 31, 2004 12:40 am
Hello Ron, sorry for your problems with fuse bounding. I have to admit its a very tough thing to do, specially with the larger sizes. You must have very little...
4326
Jean-Guy Moreau
jean_guymore...
Oct 31, 2004 12:40 am
Hello Ron, sorry for your problems with fuse bounding. I have to admit its a very tough thing to do, specially with the larger sizes. You must have very little...
4327
Ric Rokosz
radicell2
Oct 31, 2004 2:14 pm
... tolerant to printrough, ... correct with your ... . Jean, Yes I will disagree with you in your inference that none post and beam layouts are more prone to...
4328
James Mulherin
jamesmulherin
Oct 31, 2004 2:37 pm
John: James Mulherin Optical Mechanics, Inc. jcmulherin@... www.ProSpecMirrors.com Tel: (319) 351-3960 Fax: (319) 351-3943 ... Your...
4329
Jean-Guy Moreau
jean_guymore...
Oct 31, 2004 3:41 pm
Ric, Having made and worked with both design, the radial ribs and the posts/plates design, i can tell you without hesitation that the latter is much easier to...
4330
Joe
nssdz
Oct 31, 2004 8:20 pm
... {snip} I just wonder the sideways stability of these post styles? Ya know the plates trying to move parrell to eachother? How about if the posts were ...
4331
Jean-Guy Moreau
jean_guymore...
Oct 31, 2004 8:50 pm
Hi, i get your point Joe, well, a square post is a lot easier to make than a pyramid for one, and in order to make the whole blank more rigid, the base would...
4332
RON WHITE
ronev910
Nov 1, 2004 2:14 am
Jean and all First off let’s keep one thing very clear I am not recommending the methods I used to fabricate these blanks, This is an experiment and I will...
