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Old 04-24-2004, 06:20 PM
JOFRACON JOFRACON is offline
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Join Date: Apr 2004
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Location: Florida, USA
Lofting with CAD2000

I am new to CAD and experienced with the lofting process. I would like some help with the first station for lofting up the hull using CAD......from there it should be smooth sailing.
Any one out there??
John C
email john4c@pacbell.net
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Old 04-25-2004, 03:03 PM
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SailDesign SailDesign is offline
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Join Date: Jan 2003
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Put simply, not to mention bluntly, CAD is a bad tool for lofting.
CAD is handy for developing shapoes that are mathematically fair (although can still be "unfair" in boatbuilders' terms). If you really want to loft a fair shape, I'm afraid the floor is your friend.
A great deal of effort is still needed with CAD to fair a hull. True, you can "fair" one station quite easily, even a whole boatload of stations individually, but when you connect them, there will be unfairness. Trying to sort out that mess is something I never want to do again
When developing a new hullform, I always work on the "less is best" philosophy. The mesh should be composed of the fewest points required to define a shape. LArge numbers of points are impossible to fair, and that is what you will get by feeding in a table of offsets to a CAD program.
Steve
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