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Grappling Hook Launcher [DIY]
posted October 14 2013 14:28.20 by spic0m

crreed is a Mechanical Engineering Student at the Massachusetts Institute of Technology (MIT) and has been building a grappling hook launcher, it is basically a souped up version of any pneumatic gun. He took the best aspects of many different spud guns to make one of the best possible systems doing his best to avert creating any weak spots and not using any dangerous PVC (which shatters when over pressured and does not work well in the cold). This system is designed to be robust and efficient in every aspect of its construction. It is not hard to build and the most trouble anyone would have is gathering all the materials needed.

[Link: instructables]

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