atm_free : Messages : 11698-11728 of 12111

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Messages 11698 - 11728 of 12111 Oldest | < Older | Newer > | Newest

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11698	... be ok. I ... Tony, When I cut a blank into two parts I use a horizontally orientated diamond saw blade to make the initial cut as deeply as the diamond saw...	Ken Hunter atm_ken_hunter	Feb 1, 2008 2:39 pm
11699	Hi Ken, with the premium that large annealed blanks are more valuable that thin blanks, isn't cutting a blank in half much like turning a large diamond into...	ssb73q	Feb 1, 2008 3:19 pm
11700	On design and understanding what you are doing I posted this a while ago. It's not as complicated as it sounds. Even a play arround will give you some idea...	a.johnw	Feb 1, 2008 4:08 pm
11701	... Tony, I thought of doing something similar to Ken's idea. Start with a blade and put a small grove all the way around the blank, then use steel braided...	zway2bisfancyfree zway2bisfanc...	Feb 1, 2008 7:48 pm
11702	It's a lot like the way they cut large blocks in stone quarries these days except they use a diamond cutter cable rather then abrasive. Tony ... From:...	Tony Gondola acgna	Feb 1, 2008 8:16 pm
11703	Does anyone have anymore info on this tandy scope mount? http://tech.ph.groups.yahoo.com/group/atm_free/photos/view/f3e0?b=1 I would like to have more info on...	astroguy_2007	Feb 1, 2008 9:05 pm
11704	Hi Richard, No, my tube did not have rolled ends. But it has been about 14 years since I bought it. Maybe it was Nebraska. Bobby From:...	Bobby Heid bh812000	Feb 3, 2008 3:04 am
11705	Here's a 3 frame mosaic of the south polar area from 1-19. To locate yourself, the crater Moretus is at the bottom of the frame, center: ...	Tony Gondola acgna	Feb 3, 2008 5:23 pm
11706	... Yes... You can sell the BIG diamond once to a limited number of possible customers but smaller diamonds have a greater potential customer base, with likely...	Ken Hunter atm_ken_hunter	Feb 3, 2008 7:28 pm
11707	tony thats like being there--great shot! tony ... From: Tony Gondola To: videoastro@yahoogroups.com ; NEWTONIAN_ATM_and_IMAGING@yahoogroups.com ;...	HARLEY DAVIDSON astrocnc	Feb 4, 2008 12:12 am
11709	Well, that was special. I'm glad my email client trashed the graphics. Is this site moderated? - Dave G....	Dave iridium5410	Feb 4, 2008 3:04 pm
11710	Thanks! Tony ... From: HARLEY DAVIDSON To: atm_free@yahoogroups.com Sent: Sunday, February 03, 2008 5:12 PM Subject: Re: [atm_free] Lunar South Pole tony thats...	Tony Gondola acgna	Feb 4, 2008 3:18 pm
11711	... graphics. ... YES! The ATM_FREE Group is moderated. I approve all new members after they have been signed up for one week or more automatically or as soon ...	Ken Hunter atm_ken_hunter	Feb 5, 2008 8:20 pm
11712	We need you - Thanks ... after ... soon ... Sept ... through ... been...	amalaga2020	Feb 6, 2008 1:33 am
11713	Hi Guys and Gals... I have added Richard F.L.R. Snashall and Thomas Janstrom as moderators for the ATM_FREE Group and will be "training" them in my mostly...	Ken Hunter atm_ken_hunter	Feb 6, 2008 7:34 am
11714	I have a couple of questions for those who have sucessfully made flats using the 3 blank method. I think I'm ready to try a refractor doublet so a flat will...	zway2bisfancyfree zway2bisfanc...	Feb 8, 2008 3:43 am
11715	Yes and yes.......... Tony ... From: "zway2bisfancyfree" <dmhakenewerth@...> To: <atm_free@yahoogroups.com> Sent: Thursday, February 07, 2008 8:43 PM ...	Tony Gondola acgna	Feb 8, 2008 4:26 am
11716	Is anyone here currently using the CCD Slit Test or Jim Burrows' 2D Hartmann test? Tony...	Tony Gondola acgna	Feb 8, 2008 1:56 pm
11717	here jack 47'N 71'W I have the same project but whit 1\4 ordinary plated glass A- is it possible to do a good job whit this kind of glass b- is it possible to...	jacques savard suppjos	Feb 8, 2008 3:30 pm
11718	tony you said yes yes my interrogation is what the maximum size of flat do enybody have made is a 24 inch is too large project jack 47'N71'W...	jacques savard suppjos	Feb 8, 2008 4:32 pm
11719	Jacques, ... I have no experience making a flat, but I'm sure flats are usually made full-thickness to support them properly when standing on edge. That would...	Stephen Koehler steve_koehler	Feb 8, 2008 4:41 pm
11720	Jacques, ... Sorry, I missed your last line about using the flat for a flex mirror. Aren't flex mirrors usually made from a sphere? Let's say you wanted a 24"...	Stephen Koehler steve_koehler	Feb 8, 2008 4:47 pm
11721	I've made two, a 10" and a 14". I don't have a large enough machine to even consider a 24". Tony ... From: "jacques savard" <jacquessavard@...> To:...	Tony Gondola acgna	Feb 8, 2008 5:08 pm
11722	ok the completed project is to built a kind of bino scope WHY because i have some 11x50 before and now have low cost 25x100 and very happy whit it WHY i have...	jacques savard suppjos	Feb 8, 2008 6:10 pm
11723	coorection catenary curve ... and ... see ... real> parabola but at F=15 or 20 ; not F=5 like you said ; ... 'chainette ' ... and...	jacques savard suppjos	Feb 8, 2008 6:15 pm
11724	sorry for the multiple answering for the interogation about long focal 2 solutions A- the folded technic http://www.johanneswilm.org/mike/telescope/ B- the...	jacques savard suppjos	Feb 8, 2008 6:22 pm
11725	Jacques, ... If it's an f/15 or f/20, how do you plan to deal with a 30 foot to 40 foot long telescope? -- Steve Koehler...	Stephen Koehler steve_koehler	Feb 8, 2008 6:24 pm
11726	Also, a 24" F/20 is so close to being diffraction limited that there's little point in flexing.......... Tony ... From: "Stephen Koehler"...	Tony Gondola acgna	Feb 8, 2008 6:30 pm
11727	I put some file in file section in jack 47'N 71'W the most interessting file is the article of jose sanisian about how to make a curve secondary jack 47'n 71'W...	Jacques Savard suppjos	Feb 8, 2008 7:57 pm
11728	... Jack, You Canadians are my kinda "crazy" ATM. If you could make a 24 inch F15 it would need no correction and it would be 30 feet long. You could fold...	zway2bisfancyfree zway2bisfanc...	Feb 8, 2008 10:13 pm

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