Line tensioner or wire handle
thingiverse
An effective tool for exerting a strong grip on thin wires, cords, or ropes, preventing finger cuts. It can also help carry heavy plastic bags; however, Langfordw's design may be more suitable in that case. Print this design on a Darwin, Mendel, Makerbot Cupcake, or other RepRap derivative 3D printer, then attach and use the line for pulling purposes. (http://www.thingiverse.com/thing:3230)
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