Machinable Materials


Polyurethane/urethane modeling foams

They come in a variety of colours and densities that can be worked by hand or machine to model small and large structures.
offers a kit of machinable materials >> http://www.freemansupply.com/MachinableMediaSam.htm
ask for samples >> http://www.generalplastics.com/solutions/product-lines/rigid-foams/fr-4500
McMaster >> http://www.mcmaster.com/#urethane-foam/=e1sccw

Balsa-foam

A non-toxic alternative to urethane!
>> http://www.dickblick.com/products/balsa-foam/
>> http://www.americanfoamtech.com/balsafoam/craftideas.asp

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