ATM Forum Message | |
| Forums: |
Atm ·
Astrophotography ·
Blackholes ·
Blackholes2 ·
CCD ·
Celestron ·
Domes ·
Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem |
|
|
|
|
||||
|
|
||||||
Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place... The Space and Astronomy Agora |
| Re: Sub Diameter Tools
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Stephen Campbell on February 1, 2001 07:07:58 UTC |
You can use a 6" tool!,and the convex curvature(prior to pouring the pitch lap) does'nt even have to match the curvature of the mirror,as long as the lap is making good contact,the pitch will conform to the mirror, as long as there isnt a great difference in r.c. mirror and tool f/5 and f/6.8 is close enough,now if the 10" tool was f/1 or f/10 there might be a problem,remember to press often ,you must maintain good contact,and this is very important:dont use too much overhang! if you turn down the edge its difficult to correct.
|
|
| Additional Information |
|---|
 |
| About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy |
|
Unless otherwise specified, web site content Copyright 1994-2025 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 |