How to make a wrapped graphite spar

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Mike
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How to make a wrapped graphite spar

Postby Mike » Tue, Feb 27 2007, 08:30 AM

Here's how Revolution makes their spars.
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IMG_2210a.jpg
They start with a roll of graphite in sheet form. I'm guessing it also has an epoxy impregnated in it, but I forgot to ask.
The roll is mounted on a machine to cut it into strips.
IMG_2210a.jpg (92.98 KiB) Viewed 3908 times
IMG_2211e.jpg
Another view of the cutter.
IMG_2211e.jpg (85.6 KiB) Viewed 3908 times
IMG_2213e.jpg
The setup for a 2-wrap spar. Two sheets of graphite, cut with the grain in opposite directions.
IMG_2213e.jpg (97.32 KiB) Viewed 3908 times

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Mike
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Re: How to make a wrapped graphite spar

Postby Mike » Tue, Feb 27 2007, 08:37 AM

making a spar, continued
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IMG_2215e.jpg
A close view of the setup for a 2-wrap
IMG_2215e.jpg (181.33 KiB) Viewed 3906 times

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Mike
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Re: How to make a wrapped graphite spar

Postby Mike » Tue, Feb 27 2007, 08:42 AM

continued
Attachments
IMG_2212e.jpg
The graphite will be wrapped around these forms.
IMG_2212e.jpg (105.65 KiB) Viewed 3905 times

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Mike
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Re: How to make a wrapped graphite spar

Postby Mike » Tue, Feb 27 2007, 08:44 AM

Here's the Hadzicki's patented machine for wrapping the graphite.

[googlevideo]6765042145327800430[/googlevideo]

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Mike
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Re: How to make a wrapped graphite spar

Postby Mike » Tue, Feb 27 2007, 08:47 AM

Then the rod is wrapped in a protective clear wrap.

[googlevideo]7393194665885332411[/googlevideo]

After that it is baked in an oven until done.

For a 3-wrap spar, Ben said they take the finished 2 wrap, strip off the clear stuff, put another layer of graphite on, wrap it in the clear stuff and bake it again.

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Draftnik
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Re: How To Make A Wrapped Graphite Spar

Postby Draftnik » Tue, Feb 27 2007, 09:22 AM

Oh, that's cool! Better then a Mr. Rodgers Picture-Picture segment! :-)

How'd you come to get all the pics and video?
TTFN,
Draftnik

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Chris
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Re: How to make a wrapped graphite spar

Postby Chris » Tue, Feb 27 2007, 03:55 PM

That's amazing! That's quite an operation they have there!
It's a great satisfaction knowing that for a brief point in time you made a difference.

-unknown

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Mike
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Re: How to make a wrapped graphite spar

Postby Mike » Tue, Feb 27 2007, 10:28 PM

Revolution invited me for lunch and a visit when they heard I would be nearby.
I asked if I could take photos and they said it was ok as long as I didn't take pictures of one particular kite.

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Frodos Majik
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Re: How to make a wrapped graphite spar

Postby Frodos Majik » Tue, Feb 27 2007, 10:29 PM

Draftnik, Would you like to be my Neighbor? :-)

God we are both old!! :shock: :oops: :rotfl
Mister Rodgers, isnt he like dead or something?

Nice pictures Mike, thanks for the tour via cyber space. :mrblue:
May Ol Ma Nature never hold her
breath on you.
-------
Ken

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Chris
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Re: How to make a wrapped graphite spar

Postby Chris » Wed, Feb 28 2007, 05:19 AM

I asked if I could take photos and they said it was ok as long as I didn't take pictures of one particular kite.



....oooohhhhhh...and what kite would that be? :twisted:
It's a great satisfaction knowing that for a brief point in time you made a difference.



-unknown

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Babbman
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Re: How to make a wrapped graphite spar

Postby Babbman » Wed, Feb 28 2007, 05:43 AM

For anyone who is fascinated by how things are made, you should watch "How It's Made" on the science channel and history channel... Wednesdays and Fridays... way cool show... Last night they were showing how wind surf boards are made and how climbing rope is made... Absolutely cool and fascinating.

A few weeks ago they had Hot Air Balloons and anything where they show sewing is amazing...

So Mike... I suppose they made you swear to secrecy, eh?

Chris (aka Babbman)

They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety...
Benjamin Franklin, Historical Review of Pennsylvania, 1759

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Mike
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Re: How to make a wrapped graphite spar

Postby Mike » Wed, Feb 28 2007, 07:34 AM

The new kite will be available later this year. We've already talked about the B-series.

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Babbman
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Re: How to make a wrapped graphite spar

Postby Babbman » Fri, Mar 02 2007, 07:30 AM

this week was pretty good in terms of information on the History Channel...

As mentioned above, they showed how rope was made on 'How It's Made'

On Wednesday night, Modern Marvels showed 'Worlds Strongest' which included a segment on how they make spectra and it's uses in rope making. They showed a company in Portland OR who made rope out of spectra and also who had a process that makes something called 'plasma rope' where they take standard spectra and run it through a proprietary process to make it even stronger. They showed a stress test on a 6" diameter piece of plasma rope that showed it to have a tensile strength of 1.5 million lbs... unreal..

Sometimes, they re-run the previous weeks shows on Saturday/Sundays... see if you can catch them... the rope brading process was incredible and very interesting

Also, there was an article on kite making in Afghanistan in the March 5th issue of Time....


Chris (aka Babbman)



They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety...
Benjamin Franklin, Historical Review of Pennsylvania, 1759


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Drachenschwanz
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Re: How To Make A Wrapped Graphite Spar

Postby Drachenschwanz » Wed, Mar 28 2007, 01:00 PM

Babbman wrote:
Also, there was an article on kite making in Afghanistan in the March 5th issue of Time....


Did TIME mention the Ames' shipment of kites to Afghanistan? The second part of their story is on page 21 of the spring isue of KITING.
How cool is that?
My new motto:

Up the Wazo!


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