"I also used a 3/4" full-width doubler splice on the inside of the butt joint,fastened with wood screws." Harold, what the "doubler splice" you mention? Chris...
Hi, Chris...Happy New Year! A "doubler" splice is an overlapping piece that connects a butt joint, with half the area of the doubler fastened to each of the...
... that is a great idea Dan...I have the floor built to my scopes home but that is all, room inside my shed to keep the kid's 1/32 scale slot car set and my...
... joint, with ... joined. ... been ... plywood, 18'' ... Got it. Thanks. I can visualize how that would add rigidity to the whole front. Just got finished...
The ST80 that I have mounted to my 17.5 pdhq is a real dog to try to align with the main scope before viewing. I'm currently using a simple dual ring single...
Posted this question on Talking Telescopes and got a couple of responses for Mercury Support Systems adapters. I wondered if there were any upgraded adapters...
CHRIS: You can go to the "Ken's Rings" website and see what he's got. To be honest, I never cared for the finder mount that uses the "spring-loaded" method...
... there ... PHIL: Why not wrap a layer of adhesive-backed aluminum tape around the eyepiece barrels, of sufficient thickness to provide a snug fit in your...
I replaced that adapter with a TeleVue with compression ring. The adapter fits more snugly in the focuser, and the eyepieces fit more snugly in the adapter. ...
... adapter fits ... the adapter. ... JMI can make ... fitted adapter. ... focuser would ... adapter that ... inside the 2" skirt on ... aluminum ... ...
... adapter fits ... the adapter. ... why JMI can make ... fitted adapter. ... focuser would ... adapter that ... inside the 2" skirt on ... aluminum ... Don, ...
Hello, Don & Phil: (Everly Bros.?) I picked up my 12.5" PDHQ "ANTARES" on Nov. 20, but didn't bother to look at the eyepiece adapter, since I don't use 'em,...
... to ... Harold, Seems there were enough complaints that JMI just did the right thing. I just ordered the new JMI adapter and we'll see how it works. I have...
Phil, When I got my 12.5 I got the DX-2 and wanted a better adapter. I have been there-done that with JMI. The Astrosystems adapter is a great upgrade. Here's...
I'm not very experienced with scopes, I never been to a star party or looked through a scope larger that my son's 8" Orion dob. I have a 6" Konus refractor...
Hello there, IMHO,,,the chances of you getting a poor mirror are very slim. I will run down a few things to check.... I hope you have allowed for time to let...
I'll second the notion that leaving enough time for cool down is a must. I have a 10" mirror and it takes at least an hour without any fans and I'm guessing...
... the Cheshire,,, not the laser! ... accurate and true,,, then it is a possible flaw in your collimation and ultimately your scopes performance. I use a...
... down. ... the Cheshire,,, not the laser! ... I agree with Michael's advice. -Cooling can be a huge issue especially with a 15 inch 2 inch thick mirror....
Hi again, didn't get your name,,,, sorry for the generic checklist,,, nice to see others double checking their lasers. They are sold as is,, and must be...
Hey If forgot to mention,,,, those washers I speak of are the flat washers between the sonotube and the mirror cell frame. A good give away of a badly centered...
Thanks again, I really did need something else to try and now at least for awhile I have some hope. I did think of centering the primary and put washers...
I have a 17.5TD and I'm sure all the truss types have the same problem... When you tilt the scope down, the secondary cage tilts downward. You can see this by...
No problem, But, I hope you strongly consider a cooling system for your mirror. This will be the best mod you make to your scope. There are plenty of...
Note that many Discovery scopes have the focusers too near the end of the tube and would benefit from a tube-extending light shield on the side opposite the ...
... "I can use this scope with my 30mm Celestron Ultima and its fairly sharp but any more power than this and it is very poor on focus. " DBJ149 ; Since you...
If you can't use anything lower than a 30mm you have more than a collimation problem.What ep's are you using.Even bad collimation you should be able to use up...
... any ... get a good look at the secondary) , and make sure the collimating circle is properly centered. this has been reported as a problem here a number of...
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