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Wills4th
Joined: 17 Sep 2003
Posts: 42
Location: USA VA Waynesboro
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 Posted: Tue Apr 13, 2004 12:08 pm Post subject: Right angle fitting |
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I am in the middle of designing a kite and would like to join some 1/8 inch Carbon at 90 degrees, and under load, but I don't want a lot of mass. I have looked at Center Tee fittings, but I want the two rods to join in the same plane. I have thought about "Leading edge to spreader" but most of those flex, and have a side I would need to cut off.
The idea is to join three 1/8 inch rods at 90 degrees and force them to bend forming a triangle with bulging sides.
Any suggestions 
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Good Winds to Ya <>~~~~~
Will
Waynesboro, VA USA |
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Stan
Joined: 18 Nov 2003
Posts: 764
Location: San Diego
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| Posted: Tue Apr 13, 2004 12:28 pm Post subject: |
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Is Vinyl or rubber tubing too cheesy for your kite?
Stan |
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KiteSquid
Master Kite Builder
Joined: 29 Aug 2003
Posts: 3518
Location: USA Virginia King George
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| Posted: Tue Apr 13, 2004 12:29 pm Post subject: |
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Tinker Toys...
Tony can make them almost any size and out of many diffrent materials...
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VR/
KiteSquid
AKA TakoIka
AKA Harold
King George VA
P.S. Yet another post by the Squid.....  Doesent he ever shut up???
P.P.S. The wind is like the air, only pushier. |
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Spence602
Joined: 16 Sep 2003
Posts: 475
Location: USA TX Houston
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| Posted: Tue Apr 13, 2004 1:46 pm Post subject: |
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If weight isn't an issue, get some small copper tubing (at a hobby store or certain hardware stores). There should be some with a .125" ID. You could bend it into a 90-degree angle. You might break the metal at the elbow 'corners', but the 1/8" CF may not generate enough force to matter much...
You could also make an L-shaped mold  and mix up some Epoxy, pour it in, let it set, then drill the holes if you have a drill press.
If you can't figure out anything homemade, I'm sure Steve/Tony can come up with a machined fitting for you.
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Spence
www.kiteshark.org
Air: Refreshing when stirred up and served cool on a hot day. |
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knotronda
Kite Builder II
Joined: 22 Jan 2004
Posts: 804
Location: Lincoln City, OR USA
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| Posted: Wed Apr 14, 2004 2:09 am Post subject: |
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Copper might be too soft. Drilled ABS plastic fitting?? Fiber wrapped epoxied something??? Steve???
KR |
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Wills4th
Joined: 17 Sep 2003
Posts: 42
Location: USA VA Waynesboro
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| Posted: Wed Apr 14, 2004 7:58 am Post subject: |
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Thanks for everyones input.
1. Vinyl or Rubber Tubing - I think that is too flexible but would be great for saving weight, and no it is NOT "too cheezy."
2. Copper tubing - I was actually thinking of trying to bend some brass Ferrels using heat to soften the center.
3. Tinker Toys-I have looked but I don't want the whole circle. Can they be cut down to a quarter circle? Do they have holes at 90 degrees? How thick would it be?
4. Molding Epoxy- I don't have the equipment.
5. ABS Fitting-see Tinkertoy
All ideas so far are helpful, please keep thinking.
_________________
Good Winds to Ya <>~~~~~
Will
Waynesboro, VA USA |
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KiteSquid
Master Kite Builder
Joined: 29 Aug 2003
Posts: 3518
Location: USA Virginia King George
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| Posted: Wed Apr 14, 2004 8:19 am Post subject: |
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Will,
What are you building?????
_________________
VR/
KiteSquid
AKA TakoIka
AKA Harold
King George VA
P.S. Yet another post by the Squid..... Doesent he ever shut up???
P.P.S. The wind is like the air, only pushier. |
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Spence602
Joined: 16 Sep 2003
Posts: 475
Location: USA TX Houston
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| Posted: Wed Apr 14, 2004 8:39 am Post subject: |
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| Wills4th wrote: | | 4. Molding Epoxy- I don't have the equipment. |
Playdoh and Epoxy.
Just shape the Playdoh into a mold, pop it in the oven (low heat) for an hour or 2, let it cool, and then mix up the Epoxy and pour it in!
I'm not sure if the Playdoh will 'release' the Epoxy, so you could either coat the mold with something, or make a 'one time' mold (break-away).
I'll give it a try, just so I know.
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Spence
www.kiteshark.org
Air: Refreshing when stirred up and served cool on a hot day. |
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Stan
Joined: 18 Nov 2003
Posts: 764
Location: San Diego
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| Posted: Wed Apr 14, 2004 10:26 am Post subject: |
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I've used fittings and tubing from Home Depot's drip irrigation section. There are some T fittings there, as well as some of the lightest, toughest black tubing available. A hair drier or heat gun can soften the stuff for shaping.
Stan |
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Wills4th
Joined: 17 Sep 2003
Posts: 42
Location: USA VA Waynesboro
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| Posted: Thu Apr 15, 2004 7:35 am Post subject: |
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| Quote: | | What are you building????? |
The project is based on a stained glass window at my church. The two upper edges curve in to a point at the top. I am going to try to make the frame match this shape, and the bottom edge will have the same curve as the other two sides. The whole kite will become a serpent shape using the colors in the "head" to be sections of the tail.
I will borrow a digital camera and make pictures as I go so everyone can see/help/critique as I build.
_________________
Good Winds to Ya <>~~~~~
Will
Waynesboro, VA USA |
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