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Old 10-21-2009, 06:20 PM   #10 (permalink)
aerohead
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how about

Quote:
Originally Posted by anthonye81 View Post
Cd's point is that the term "rapid prototyping" refers to a specific practice of model making with all the 3D CAD and resin moulding equipment. Using this term for something else can be confusing.
Okay,how about that it is rapid,in the context of do-it-yourselfers as the forum implies.
There was a time when cement plaster supplanted all-wood prototypes,and it was more "rapid."

Then came clay which was faster.
Then body-filler over foam.
Sure,stereo-lithography is an amazing process although you've got to have your design fixed,pre-digitized, and all the vectors established before you even begin to build up laminations.Okay for an engine block,but a car maker would never do a body this way.They'd use their 5-axis router/mill to cut down clay.And again,the "virtual" vehicle must already fully designed.
Again,it's all great but certainly beyond the scope of the backyard shop or garage.
The foam/wood/fiberglass is low tech,can be modified instantaneously,and designed on the fly.
CAD/CAM is today's state -of -the-art,although for a knuckle-dragger like me,born before dirt,this home-brewed tech has been one way to see things come together and on the road before the engine wears out.
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