Hello everyone, Today I will be picking up the plywood for my mount. Got the plans all laid out,so its time to get this show on the road, so to speak. I am a...
Hi Rick, With your piece of glass I'd think 1/8" thick would be fine. I'd advise against using a ferrous metal if you plan on using RTV adhesive to hold the ...
I may have to sell my 6" scope with my 26mm eyepiece to fund my 13" mirror. I found a few 2" eyepiece (by Russell Optics), but they seem to be the cheapest 2"...
I can make a mirror blank for you, if you don't mind a thin one (3/4" thick). Or possibly you can get a Dan Cassarro 7/8" blank and let me slump it for you so...
I can not get the Cell program for determaining the placement of point on a nine point cell to run, I keep getting a runtime error. I have tried downloading it...
from what i read cell is not the preferred program for telescope design anymore. download plop and use it instead. good luck jtm ... From: "bucko_62"...
ok all, I have a plan, but will it work? I had a book before(which I do not have now)Richard Berry I think was the author. In this book, he made a ring to fit...
I don't know why you think nine points is the right number. It is gross overkill. You would be OK with a four point or a six point flotation. Also, I don't...
You can do OK with six points. A standard thickness 10" does ok with four points, but your mirror is on the thin side, so you best go with five or six. The...
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 : /OSLO How To...
atm_free@yahoogroups....
Aug 2, 2002 10:57 pm
472
Richard, OK, I will have to try to learn this "PLOP" program then. yes I agree nine point is probably overkill, but if it works like I plan, it will be a easy...
OK, I will have to try to learn this "PLOP" program then. yes I agree nine point is probably overkill, but if it works like I plan, it will be a easy chore to...
a nine point cell should do nicely for your 10" also you may want to consider universty optics cells. low cost and very effective for cool down too. ... From:...
the biggest advantage by far is light transmission. 1.25 eyepeices often limit the amount of light, in effect limiting your apature. ... From: mschaffroth...
... Perhaps someone can quantify under what conditions a 2" eyepiece will be an advantage over a 1 1/4" eyepiece. Don Clement Running Springs, California ...
Ok, I am completly at a lose. If someone out there understands plop, maybe you could help. I need the size of the triangles, and the radius of the pivot points...
The only advantage a 2" eyepiece affords optically is that it has sufficient diameter to allow a larger fieldstop which for a given focal length results in a...
John, Purchasing a cell is completly out of the question..:( or i would gladly do so.... but I must make my own, if I can ever figure the dimensions. ... cool...
I assume you're using the GUI version of PLOP. If so do the following: Click on the button near the top right labeled "Automatic Cell Design" Enter the values...
... Too bad you have to be a genius to use it. Jim L...
lifedata@...
Aug 3, 2002 9:07 pm
484
A 2" eyepiece might be of use with a long focus telescope (refractor?) when you want to view a bigger chunk of sky. However, a 2" FOCUSER is an advantage...
I would like to help you. I have tried to help you. But if you continue with the nine point obsolete cell from the days of Adolph Hitler, I cannot help you....
Richard, The Cell program is gone, outta here, deleted....They should date the stuff so one would know they are obsolete. (((I am now using plop, just wish I...
Mark Holm has analyzed a whole bunch of mirror sizes and thicknesses and has exactly your design done. You don't need a 9 point cell: 6 point is plenty good...
well give us some lessons then. im sure we could all benifit from them! my 10" F3.95 only one inch thick does wonderfully on one. and the open design allows...
