Monday, March 4, 2013

3D Printer Recycles Milk Jugs

3D Printer Recycles Milk Jugs: They cut the labels off milk jugs, washed the plastic, and shredded it. Then they ran it through a homemade device that melts and extrudes it into a long, spaghetti-like string of plastic...

The process isn’t perfect. Milk jugs are made of high-density polyethylene, or HDPE, which is not ideal for 3D printing. “HDPE is a little more challenging to print with,” Pearce says. But the disadvantages are not overwhelming. His group made its own climate-controlled chamber using a dorm-room refrigerator and an off-the-shelf teddy-bear humidifier and had good results...

The group determined that making their own filament in an insulated RecycleBot used about 1/10th the energy needed to acquire commercial 3D filament. They also calculated that they used less energy than it would take to recycle milk jugs conventionally.

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