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kiteguy
Kite Builder II
Joined: 15 Sep 2003
Posts: 1453
Location: USA - Kansas, Overland Park - Near Kansas City
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 Posted: Tue Jan 04, 2005 5:17 pm Post subject: |
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Well, a 50 pound spikey ball making a ground sweep will not even pause in contact with a 50 pound child. So be sure you have your display roped off and supervised by a well qualified person. (Yourself) 
Who wants to be on the bad end of a law suit? 
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Dave Ellis
Kites + Kids = Education |
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Progcraft
Kitebuilder of the Year 2004
Joined: 29 Sep 2003
Posts: 2558
Location: Calgary, AB, Canada
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| Posted: Tue Jan 04, 2005 6:11 pm Post subject: |
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| kiteguy wrote: | Well, a 50 pound spikey ball making a ground sweep will not even pause in contact with a 50 pound child. So be sure you have your display roped off and supervised by a well qualified person. (Yourself)
Who wants to be on the bad end of a law suit? |
Very valid point, thank you Kiteguy.
Well, (depending on just how much fabric 50 pounds really is), I'm likely going to make a combination ball/tube display. Maybe what I'll do is add anchor points down it's length as well. That way it can be staked down all the way along.
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kiteguy
Kite Builder II
Joined: 15 Sep 2003
Posts: 1453
Location: USA - Kansas, Overland Park - Near Kansas City
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| Posted: Tue Jan 04, 2005 8:25 pm Post subject: |
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Oh, and someone said they had found a source of parachutes for $135. Not much of a deal, as you can get parachutes from eBay for around $40. Less if you are lucky.
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Dave Ellis
Kites + Kids = Education |
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Doug LaRock
Master Kite Builder
Joined: 11 Jan 2004
Posts: 179
Location: Yakima, Washington
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| Posted: Wed Jan 05, 2005 12:44 am Post subject: |
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Prog, Bob Serack build a 30ft soccer ball a few years ago and its very impressive. I believe he had some problems initially blowing out seams because of internal pressure. I know he had to do a little re-engineering
but now it works good.He ropes off a space around it to keep people out of it, because it makes a lot of pull.
He is now working on a world globe 50ft dia. I'll have to look up his web site, he had pictures of the work in progress
Doug |
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Progcraft
Kitebuilder of the Year 2004
Joined: 29 Sep 2003
Posts: 2558
Location: Calgary, AB, Canada
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| Posted: Mon Jan 17, 2005 6:51 pm Post subject: |
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Oh my but this is a freaking huge amount of fabric 
I'll be building something garguntuan with this stuff
Bwa-ha-ha-ha-ha-ha
P
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Progcraft
Kitebuilder of the Year 2004
Joined: 29 Sep 2003
Posts: 2558
Location: Calgary, AB, Canada
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| Posted: Mon Jan 17, 2005 7:01 pm Post subject: |
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Oh, and this fabric is actually thinner and lighter then what I used on Crazy Spike. And much brighter colors too
he he he he
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Doug LaRock
Master Kite Builder
Joined: 11 Jan 2004
Posts: 179
Location: Yakima, Washington
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| Posted: Tue Jan 18, 2005 2:12 am Post subject: |
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P. from the info you supplied I'm guessing about 420 sq. yds. or 3780sq. ft. of fabric. A 20ft sphere has a surface area of 1257 sq. ft. A 30ft sphere has a surface area of 2828 sq. ft. Have fun.
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Progcraft
Kitebuilder of the Year 2004
Joined: 29 Sep 2003
Posts: 2558
Location: Calgary, AB, Canada
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| Posted: Tue Jan 18, 2005 8:12 am Post subject: |
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That's the same estimate I came up with. approx 420 sq yards
Nice to get another one. Makes me think it's correct
Cheers,
P.
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