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
Login

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

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Paul Maddocks on August 14, 1999 02:34:47 UTC

: The next time, do your rough grinding with a iron pipe end cap to about 90% of the depth and then cast the tile tool with the tiles in the plaster rather than glued on afterwords. The tiles will stay attached and due to the preliminary grinding of the curvature into the glass with the iron pipe end you'll have plenty of tile left when you get done with the mirror. : Whenever you attach a tile, you need to grind it back to where the rest of them are. Towards the end, just leave the tile or two that fall out out as no real harm will result. Adding more epoxy between the tiles will tend to migitate the problem. Good luck. Ok ... 1 more question .. I have several pounds of "Tuff Stone" Dental plaster to play with (www.prevest.com).. and my blank down to .060 ,with target of .080'ish. How would one cast a tool with the tiles embedded ??? .I have searched the web and cant find any page that clearly describes how to do this. A link to a descriptive page would suffice as I know your a very busy guy !! (I can relate)

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