DAGU will now stock polymorph and can offer you 1Kg for $22 USD. Admittedly shipping cost will increase that price but if you are ordering several other parts from us as well then it should work out good value for money. 1Kg will last a long time unless you are making very big robots. Comes in a re-useable plastic box.
Polymorph is a plastic that melts at very low temperatures. Placing poymorph in a cup of hot water is all it takes for this plastic to go from a hard white nylon like material to a soft clear putty that can easily be shaped by hand. Once cooled it will return to a tough white plastic. Perfect for prototyping!
Please email Claudia to place an order.
Polymorph is actually Polycaprolactone which is non-toxic and biodegradeable. Below are some links to tip/walkthroughs on using polymorph.
My tip/walkthrough for making plastic sheets and brackets: http://letsmakerobots.com/node/4070
Gareth's polymorph workshop 1 (Trivots): http://letsmakerobots.com/node/13950
Gareth's polymorph workshop 2 (Finger): http://letsmakerobots.com/node/14041