Complete Collimation of the Meade Schmidt Newtonia
Posted 09 May 2008 - 04:03 PM
Posted 09 May 2008 - 09:24 PM
You can make the pictures larger easily by right clicking, saving the pix on your desktop, then opening them and expanding.
Posted 13 May 2008 - 05:35 PM
>The only major problem I had with my Meade Schmidt-Newt that wasn't addressed was the outrageous amount of focuser slop and its slightly oversized bore. No laser collimator I ever put in it pointed at the same spot twice. And racking the focuser in and out even slightly would move the laser spot on the primary by half an inch or more. Maybe I am glad I sold it after all.<
Posted 15 May 2008 - 08:17 AM
Regarding secondary rotation, I suppose that method of checking with the T-paper shape would also work with any newt/mak-newt as well, no?
Posted 19 May 2008 - 09:15 PM
Posted 20 May 2008 - 12:13 AM
Once that is done, if you are still not showing a centered laser, check that the center spot on the primary is center, and also that you are 100% sure the primary is centered within the primary holder,
Posted 20 May 2008 - 08:54 AM
That's a great idea. I wish I'd have thought of it. Thanks.
Posted 23 May 2008 - 12:17 AM
You can find additional details of this "string" technique, here..
I'm glad everyone is enjoying this helpful tutorial that Danny Lunsford (DeSitter) and I wrote. It contains a lot if techniques compiled from many sources, so no one person should get full credit. The idea for the "Blue Ghost" was Danny's own, so all comments about that should be direted to him. The "Paper T" technique was best described by Danny, and I have little experience using it so please send comments aboit that procedure to him as well. The "Rod Rotation" technique was mine, and I would like to hear if anyone else has found that it works. Some have found that it does not work with their specific Meade SN. I would appreciate hearing from more users, so see if this technqiue is truley worthwhile.
Posted 23 May 2008 - 12:29 PM
When I try to print out a hardcopy of this article the first 7 pages seem OK, but for the rest of the pages the edges of the photos get clipped off. I've tried saving it in different formats, including Word, to try to fix this problem, but with no luck.
How about re-posting the article as a pdf?