-DannyMy warehouseMy Channel
Quote:What about cost and source for carbon fiber trusses ?
Home-built Dob 10 F6/Zambuto/Osypowski Platform Starmaster 7 Oak Classic- Zambuto Discmount DM-4 w encoders Stellarvue 80ED Stellarvue 70ED Stellarvue 60 Finder Tasco 50 refractor (1966 birthday gift) Orion 80ST Lunt 60 Double Stack Bogen with Dwarfstar mount AT Voyager mount Celestron SLT mount Astro Physics 15x70 Binos Orion Parallelogram mount
Quote:How thick is your mirror?Here is a nice cell: http://www.aurorap.com/prod-AZ-mirror-cell.htm, though it requires silicone. Carl Zambuto says silicone works great on these smaller mirrors. I wouldn't be big on it, but I sure wouldn't argue with Carl. I believe Portaball silicones their mirrors in , and few have anything bad to say about that set-up.JPAstrocraft will also make you a 6 point cell for your 10". He does wonderful work: http://www.jpastrocraft.com/cells.htm ...and you get edge support.Some of the better secondary mirror supports come from Astrosystems and Protostar. Protostar sells a nice non-metallic tube. Hastings is likely the least expensive place for aluminum tubes. There are now several places for carbon fiber 12" tubes if that is what you are after.
Quote: Optical Support - $229but they're temporarily off line 6-12 months.
Quote: The 10" has 4 fixed points for bottom support. How is this a good idea?
Jeff Morgan - Wile E. Coyote School of Telescope Making
Quote: Quote: The 10" has 4 fixed points for bottom support. How is this a good idea? it has 6 supports according to this drawing
Quote: Any source of tube clamps?
Quote:...Would it be practical to make one?
Celestron 8SE Dobstuff 13.1": Swayze refigured Coulter mirror, 6 pt mirror cell (2 pt edge support) and CF focuser board made by me StarBlast 4.5 ST80/PortaMount II Zhumell 20x80/Oberwerk 15x70 on a Seronik-style tripod boom mount Hubble Optics 18 inch F/4 mirror.
Quote:at $45 this one looks interesting 19 MM OD by 48 inches CF Pole
Quote:Any source of tube clamps? I can't see anyone justifying paying $1200 for a CF tube.
Quote:Perhaps we can make a 12" tube from 12 sq ft of CF @3 x12 or $36 then add in cost of epoxy and put this over a cardboard tube and voila.
Is there something wrong with this idea?
Homemade 14.5" f4.3 Truss Dobsonian
"I'd like to remind you at four in the morning my world is very still, The air is fresh under diamond skies, makes me glad to be alive." Randy Bachmann "Blue Collar"
“A mind is like a parachute. It doesn't work if it is not open.” ― Frank Zappa
Quote:Perhaps we can make a 12" tube from 12 sq ft of CF @3 x12 or $36 then add in cost of epoxy and put this over a cardboard tube and voila.Is there something wrong with this idea?