This is my newest ball machine. its got 4 paths and is only about 2ft high. i tried to include as much elements as i could in such a small space. another cool feature is when the bottom 2 base tracks run into each other at the bottom part of the lift, which i have not seen in any other ball machi...By: knex gun builder
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Source: http://www.instructables.com/id/Knex-ball-machine-project-petite/
building an extension building and remodeling building company building construction
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