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
Don't Overdo It

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Walter Hamler on January 28, 2002 20:44:54 UTC

Having recently completed a 12.5 truss dob, I would say not to go overboard on strength to the point it becomes massivly heavy. I used 3/4" birch plywood and it was overkill. 1/2" would have been more than adequate with just a few corner gussets for added strength. My mirror was full thikness, so I would say your thinner 16" would not be that much heavier if at all.
I also used a tailgate and cut ventilation holes in the back. Worked fine, but that thick mirror takes forever to cool if there is a big difference in temps.
Good luck with the project. I'm just getting started on a 16 myself, but the mirror will be one inch plate!

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 1994-2019 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