There are some people wastes 50 years to create their art designs cheapest , no need to cnc lathes and enviromentally friendly.
I gave my 25 years to studying this kind of stuff. If you look to Luigi Colani , he creates whatever he wants with hot wire cut foam. I think this is the cheapest , fastest , less complex , and using least electric technology. And no noise for home studios in the apartments Only you have to do is to create a moving hot wire inside foam. Than you fill the cut foam with polyester slowly , and seal the foam. There would be no nasty fume. You can fill the very thin foam cut with a syringe very slowly. I asked to produce a guitar with rapid production , rapid prototyping methods and it costs 3000 dollars without a neck . This is not intelligent. Hot wire FOAM CUT is the best How you will produce the back , one by one and assembling the foams together precisely and fill with epoxy. I am seriously thinking to produce Lutes with this technology. You can produce carbon composites with adding graphite carbon powder in to the polymer ! It is like using saw and a wood. Best , Mustafa Umut Sarac Istanbul -- To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
