On the c14 group, http://groups.yahoo.com/group/c14 We're collecting in the photo folder "copernicus project" pictures of the copernicus ray system at full...
I haven't seen the "virtual counterweight" used much, but it does work nicely. I've uploaded an image into my album DennisK6KRV. Anyone else using something...
Hi; I am a new member that just join. And I have work out a big mirror blank design. The mirror blank will be of a fuse glass design. 2 1/2 inches thick and 36...
I've notice that on refractor groups they spend a lot of time talkng about a the Airy disk in reltaion to doubles and there's a lot of knowledgeable discussion...
I'd like to know if any of y'all big dob guys have seen them thar teenny G and H varmints *VISUALLY* in that thar M42 Trap and if you could give particulars of...
I added the story of adapting an Intelliscope computer to a Meade LightBridge 12 deluxe to my website. The page is kinda crude, but it documents a fun project....
Recently, I traded in my original Meade EP's for several Televue Naglers- the 9mm type 6, 16mm type 5 and the 31mm type 5. On my 14", f/4.8 DOB, they give...
This is a compilation of three posts on another group, so if I repeat myself… Oops! I was trying to decide what DSC to install on my Meade LightBridge. I...
Hello, I life in Trois-Rivières city in the Quebec province in the eastern of Canada . Last year I moved from Quebec city to Trois-Rivières city for...
Has anyone tried or have any opinion on these $99 Burgess Optical EPs for planetary viewing. I was thinking about a Televue Radian($250). I wanted to get an...
Hi Group, To avoid reflections and cold hands, I'm planning to blacken the aluminium truss poles of my 14" truss dobson with some sort of isolation material. I...
My Dob's mirror is pretty dirty, and I'd like to clean it. I know how to clean it, however it stays in an unheated porch (no cool-downs!) and I'm concerned...
Hi Mike, John Mahony replied earlier that the material I saw on eBay is what Rick Stingmaster is using on his starmasters. This is the stuff I saw on eBay: ...
Hi, This has probably been debated before but I'll ask anyway. Since completing it several months ago, I have been enjoying using my 16'' version of Mel's...
I let it set on the sling for a week and then pushed up on the bottom a few times and let it settle back. Mel had posted once about putting on the sling a...
I have a more detailed analysis of my earlier latteral testing. I discovered that what I had measured was not the difference between two and one peg support....
http://doeason.home.comcast.net/lateral_test/sling_study.pdf Some have asked that I do a study of the sling for supporting thin mirrors. Here it is. I had a...
Here is my analysis of trefoil caused by 2 peg lateral support. http://doeason.home.comcast.net/lateral_test/trefoil.pdf This should be studied further to see...
Okay gentlemen, I'm no longer just lurking. Tomorrow I'll be sending my 1/2 deposit check to Jim Nadeau for my new NSS. (www.nightskyscopes.com) I'm counting...
Dear Group: I'm interested in exploring the possibilities of building a medium-sized "Dob", likely in the 14 - 16" size range. Is anyone aware of a suitable...
Hi, Concerning the suspected cool down problems with Conical mirrors, I contacted Mr. RF Royce and asked for his comments. I tried to send his comments as an...
Hey all: I'm making a few pre-generated Pyrex blanks available on our eBay store. There have been some posts about blanks being hard to come by for ATMs so I ...
http://tinyurl.com/ymk8un Takes you to the folder of an SCT collimation device of possible utility for Newtonian owners who like to collimate on stars. As you...
Hi Bigdobbers While your on the subject of bearing surfaces, I have two questions about my orion xt10-i. The az sticks a little. What could i use to clean the...
I have been unable to source any Ebony Star 4550-50 (only the -90 which, I'm told is too smooth). Can you tell me what alternatives you've found to use on the...
Hello Gang, You know, life at the ranch just hasn't been the same since the sale of my 15" Discovery Dob earlier this year. I sold it to finance a larger scope...
Anybody out there using the current version of these in a binoviewer on a fast (f/4.5 or faster) DOB? If so, how's the view? Got a new 18" f/4.5 and 3 people...
