Uploaded June 2015 | Updated September 2026, 3 days ago

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The whole version of instructions for building a (sort of) working model of a human hand. More information at sciencetoymaker.org/robot-hand
The pattern is here sciencetoymaker.org/wp-content/uploads/2018/09/Robot-Hand-Pattern-2.pdf.
But before you build this version--quite challenging and messy--consider building the following, simpler designed by my friends at the Greenfield Community Science workshop
youtu.be/tcW-7kSWJi4