The idea started about three years ago when some students started meeting in the wind tunnel lab behind the Clyde building to talk about plastics and prostheses, said Douglas Wright.
Their goal was to help amputees in developing countries walk again, since many can't afford the thousands of dollars it takes to buy a carbon-fiber prosthetic limb.
Wright said you can walk on anything from a pirate stump to a crutch, but it's not comfortable. So after months of testing they decided their material of choice was PVC pipe. It can be melted and molded, plus it's firm but flexible.