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hope this helps:


first i made a pattern out of cardboard.then i traced it over the sintra.then i boiled the sintra to the consistensy of a wet noodle.i have noticed if you dont heat the sintra well enough, when you bend it you will get ripples.i had a 3 1/2" diameter plexiglass tube left over from my jet pack and layed the knee over the tube to get the  curve.the curve came out uniform and that did the trick great.you could most likely use anything thats tubular to bend the curve.perhaps a mailing tube would suffice.good luck!!!


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