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#1
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Truss tube design?
I have the parts for making an open truss telescope tube for a 10-inch
f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Thanks -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#2
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Truss tube design?
If Starlord replies then we'll have an open cluster right here on SAA!!!!!!
-- Martin Remove "ilikestars" from email address to reply |
#3
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Truss tube design?
If Starlord replies then we'll have an open cluster right here on SAA!!!!!!
-- Martin Remove "ilikestars" from email address to reply |
#4
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Truss tube design?
There's an interesting technique on this page:
http://home.att.net/~JEKasunich/truss.htm Cheap, repeatable and effective. Looks cool, too. And no loose parts to lose! Good luck - Chris "starman" wrote in message ... I have the parts for making an open truss telescope tube for a 10-inch f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Thanks -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#5
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Truss tube design?
There's an interesting technique on this page:
http://home.att.net/~JEKasunich/truss.htm Cheap, repeatable and effective. Looks cool, too. And no loose parts to lose! Good luck - Chris "starman" wrote in message ... I have the parts for making an open truss telescope tube for a 10-inch f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Thanks -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#7
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Truss tube design?
In article , says...
I have the parts for making an open truss telescope tube for a 10-inch f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Without going into endless detail here, I'd /strongly/ recommend purchasing and reading _The Dobsonian Telescope_, by David Kriege and Richard Berry (before you build). LOTS of good info in there, including exactly what you're asking. With the exception of a section on an 8" Dob, it's biased toward large aperture truss scopes, but it's full of real good stuff nonetheless. You can get the book from Willmann-Bell at http://www.willbell.com/tm/dobtel.htm There's also a listing of the Table of Contents there that will give you a good idea of the book's coverage of the subject. |
#8
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Truss tube design?
Len Philpot wrote:
In article , says... I have the parts for making an open truss telescope tube for a 10-inch f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Without going into endless detail here, I'd /strongly/ recommend purchasing and reading _The Dobsonian Telescope_, by David Kriege and Richard Berry (before you build). LOTS of good info in there, including exactly what you're asking. With the exception of a section on an 8" Dob, it's biased toward large aperture truss scopes, but it's full of real good stuff nonetheless. You can get the book from Willmann-Bell at http://www.willbell.com/tm/dobtel.htm There's also a listing of the Table of Contents there that will give you a good idea of the book's coverage of the subject. Thanks. Do you know what year is the latest edition? -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#9
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Truss tube design?
Len Philpot wrote:
In article , says... I have the parts for making an open truss telescope tube for a 10-inch f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Without going into endless detail here, I'd /strongly/ recommend purchasing and reading _The Dobsonian Telescope_, by David Kriege and Richard Berry (before you build). LOTS of good info in there, including exactly what you're asking. With the exception of a section on an 8" Dob, it's biased toward large aperture truss scopes, but it's full of real good stuff nonetheless. You can get the book from Willmann-Bell at http://www.willbell.com/tm/dobtel.htm There's also a listing of the Table of Contents there that will give you a good idea of the book's coverage of the subject. Thanks. Do you know what year is the latest edition? -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#10
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Truss tube design?
Len Philpot wrote:
In article , says... I have the parts for making an open truss telescope tube for a 10-inch f-5.6 mirror. I plan to use eight 3/4-inch dia. aluminum tubes in pairs to make the angled supporting trusses between the upper and lower body tubes, which are 12-inch dia. thin wall plastic PVC. My question is how best to attach the aluminum truss tubing to the body tubes. I'd prefer to make some kind of adapter for the ends of each truss tube rather than just flattening the ends. I would appreciate your suggestions on this subject along with ideas on how to reinforce the plastic body tubes so they will remain round under load. Without going into endless detail here, I'd /strongly/ recommend purchasing and reading _The Dobsonian Telescope_, by David Kriege and Richard Berry (before you build). LOTS of good info in there, including exactly what you're asking. With the exception of a section on an 8" Dob, it's biased toward large aperture truss scopes, but it's full of real good stuff nonetheless. You can get the book from Willmann-Bell at http://www.willbell.com/tm/dobtel.htm There's also a listing of the Table of Contents there that will give you a good idea of the book's coverage of the subject. Thanks. Do you know what year is the latest edition? -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
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