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
RE: ??How Thick Should I Go??

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Robert May on May 6, 2000 22:46:12 UTC

As a first mirror a 3/4" thick 10" mirror is a bit thin. For mirrors after you get it all together as to what is happening, a mirror of that thickness is no real problem. Why not find a 6" piece (you could get it from the same guy probably) and grind and polish that one out for the same Fratio and then you will have a much better idea of what things look like as you go along. It`s when you use the 3/4" for a 20" mirror that things get a bit risky and you need to start with a slumped blank.
BTW, I have a brother named Bill.

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 1994-2024 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