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#1
02-14-2014, 08:42 PM
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New From Chicago, IL
I suspect you may be able to find a set if you look at the auctions r used supply stores around Detroit.
I remember watching the stylists use sweeps back in the 1980's. It was explained to me that they were actually portions of a giant French Curve but I have also heard they were portions of a parabola. I had to convert the clay model data into CAD and the CAD system I used supported sweeps (only CAD system I have ever seen this in) The CAD system was Ford's PDGS body design system. Sweeps date back at least 100 years and were used internationally in automotive and aerospace. All this was explained to me by a few old stylists and body designers when I was a designer. Can anyone confirm or correct the French curve or parabola info? Kevin Adams 
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#2
06-13-2014, 10:20 PM
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I haven't heard that Kevin but there is lots I haven't heard. If you search for sweeps, you'll find several threads that discuss them. Every sweep I've seen has a constant radius where a French curve or parabola has a constantly changing radius.
Most are made by a 1/16" increment in the rise of a chord. 36+ inches seems to be the norm.
__________________
Kerry Pinkerton
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#3
06-14-2014, 04:31 AM
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Hi Kevin welcome to the forum
Peter
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P.Tommasini Metalshaping tools and dvds www.handbuilt.net.au Metalshaping clip on youtube http://www.youtube.com/watch?v=WEAh91hodPg Making Monaro Quarter panel: http://www.youtube.com/watch?v=KIpOhz0uGRM
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#5
06-14-2014, 01:50 PM
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Welcome to the forum Kevin.
David
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Metalshaping DVD. www.metalshapingzone.com Metalshaping with hand tools on youtube http://www.youtube.com/watch?v=IGElSHzm0q8 All things are possible.
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#6
06-15-2014, 01:29 PM
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Hello Kevin and welcome to the site.
Jere
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Jere Kirkpatrick Valley Forge & Welding HEN-ROB Torch Dealer.  Teaching The Fundamentals of Metal Shaping www.jerekirkpatrick.com All tools are a hammer except the chisel.....That's a screwdriver.
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