Back to Home

ATM Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Amateur Telescope Making | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Need Advice

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Robert May on August 24, 2001 05:02:19 UTC

You might as well start becoming a ATMer at this point. The first thing you will want to do is make a corrector. The Schmidt Corrector is a decently easy project although it has a lot of strangeness about it as far as grinding and polishing.
The ATM bookset has several articles on making Corrector plates (a Mak corrector would be very expensive for that size of primary) and, while the technical expertise is that of the 1930s, it is still quite understandable and possible to build a corrector from ordinary plate glass which is a lot cheaper than optical glass is.
Try that project first (you'll be building some of the necessary test equipment as you move along) and see if it works for you. will have the necessary grits and you can probably start quite well at the 25 micron grit stage after you build your vacuum pan.
Having a telescope of at least 8" size to provide a flat wavefront for testing is always nice and you can make a basic parabolic surface first if you so desire so that you have that good source of light. The testing parts of the ATM bookset will provide the insights to this procedure.
The ATM bookset is available used at various places and Willmann-Bell had the new upgraded/organized set for a decent price. Get all 3 books as you will find a need for all of them!

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2023 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins