Happy Halloween

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
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Re: Cutting Glass

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Robert May on May 24, 1999 05:37:26 UTC

One way is to make a glass cutter. Make a wood circle the diameter that you want and put a sheetmetal copper or steel edge around it that extends down about 2" or slightly more and put some slits in it about 1/4" x 3/4" or so around it. Mount the wheel on an axle and support over the glass. Power the wheel with a decent motor and lower onto the glass. Feed some 50 or 80 grit Silicon Carbide and water and grind the circular hole in the glass. The process can be further clarified in the ATM books of Ingalls (available at Willmann-Bell - WILLBELL.COM). Before you start, make sure that the glass you have isn't tempered as is will merely shatter after you get a certain distance in. The process isn't fast so expect to take a while.

Follow Ups:

    Login to Post
    Additional Information
    Google
     
    Web www.astronomy.net
    DayNightLine
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2021 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