blg granger KNEX machine

21-year-old Austin Granger sits among his massive K”NEX structure in his room in St. Paul, Minn., on Wednesday, September 13, 2012. Built with more than 40,000 parts in over 8-months, the machine has 21 paths for ball to travel and four lift systems to take them back to the top, including a computerized overhead crane system. To see videos of his this contraption and past ones, visit
(Pioneer Press: Ben Garvin)

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