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MikeS
scholastic sledgehammer
Reged: 04/06/04
Posts: 911
Loc: Quakertown Pennsylvania
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Does any of the tube suppliers, such as Tubes for Telescopes or Hastings Pipe sell small lengths of tube? I am going to need 12 inch OD tubing in a 10 inch length, 14 inch length, and 6 inch length. Will they go that short?
My plan is to make a 10" f5 newtonian similar to this Royce Open Tube Reflector. The upper section will be 10" long, middle section 13" long, and mirror section 6" long.
The weight should be fairly light. So far about 16 lbs. According to the vendor specs...
29" of aluminum tube = 7.2 lbs.
29" of Protostar BlackLite = 4.35 lbs.
The Royce conical = 6.5 lbs.
Mirror Cell = 2.5 lbs.
Secondary = 100 g - 200 g
Struts and additional support = ?
Focuser = ?
Feel free to add your ideas! This is my first big project.
Edited by MikeS (07/27/08 10:30 PM)
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GJJim
sage
Reged: 09/09/06
Posts: 223
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If you can't find it online, check with an irrigation supply company. They have thin-wall aluminum tubing in various sizes.
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Wes James
Carpal Tunnel
Reged: 04/12/06
Posts: 2420
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Also you can sometimes find odd sizes/length's on eBay.
--------------------
Wes
Atlantic Beach, FL
Some bino’s from Miyauchi 5x32 Binon's up through Garrett 20x110 Signature's,
Some telescopes from a Stellarvue 80mm NHNG up through a couple of 8” reflectors…
And a wonderful 4.25" Delmarva Shiefspiegler!
Some good friends, made here on C/N.
Oh- several cats and a wonderful wife!
Anyone want a cat???? :-O
"When your work speaks for itself- Don't Interrupt" -Gamble Rogers
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MikeS
scholastic sledgehammer
Reged: 04/06/04
Posts: 911
Loc: Quakertown Pennsylvania
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I'll check them out. I wonder how strong the Protostar BlackLite tubes are. Any experience with them?
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Mike Snisky
8" F5 Newtonian/Moonlite CR2
Orion Sirius EQ-G Mount
Orion 100mm F6 Achro on SVP w Intelliscope
Orion 100mm ED on LXD55 Mount
Denkmeier Standards
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Gregg Lobdell
sage
Reged: 01/20/06
Posts: 370
Loc: Covington, WA
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You could try onlinemetals.com They don't list anything this big in their catalog (max size 8" OD), but give them a call, they may have something laying around.
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Clear skies,
Gregg
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