Quote:
Originally Posted by crystallographic
Making a large buck from a scale model is a class I taught in NH 10 years ago. It was a bit more complicated than simple but it involved making some simple gages that magnified the point-to-point distances, after laying out the flat profiles of all the "slices" of the model, in each view. We went from a 12in model to a 4 foot sculpture, and then covered that in shaped .050 aluminum.
iirc, Mark Goodenough was a principal shaper of some or all of the fancy reverse parts.
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Yes Kent, thanks for the mention. That seminar was a bunch of fun. The four foot object was the Cat in the Hat's hat. I think we all learned a lot about the subject of enlargements and lofting, and that there are many ways to approach the task. The class was held in the sculpture studio of Jonathan Clowes, then of Walpole, NH. He had some ingenious methods of capturing information off scaled models for the sake of enlargement which didn't involve cutting or destroying the model to get the information. One such method used a drill press with a variety of pointers and sleds with layout scales printed on them- as a digitizing tool. He would scale up incrementally from a 14" tall model to a 14' model then actual size over 40' as in this sculpture:
http://www.clowessculpture.com/portf.../canticle.html
As a side note, his studio also developed and produced the flexible shape patterns shown to Wray Schelin in preparation to build this same sculpture in veneered and painted aluminum.
For the sake of this thread the search words "measuring bridge" will turn up some useful info.