Jim Smith of Grass Roots Engineering has been designing and building his own home-based, large-scale 3D printer since 2008, and the latest modification recently spent over 40 days producing 28 colorful ABS plastic sections that were bolted together to create a 16.7 ft-long kayak.
The 3D-printed kayak design was based on the Siskiwit Bay kayak by Bryan Hansel, but modified for 3D-printing and optimized for Smith's height and weight. It's 16.7 ft (5.08 m) long and 1.7 ft (0.52 m) wide, with 28 sections that have been bolted together with machine screws and brass-threaded thermoplastic inserts, and sealed between sections with silicone caulk.
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