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Knex ball machine: Project Simplicity
Fenrir119's Knex Ball Machine Elements
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Knex Alternator Lift
How to build Project Blaster Knex ball machine
Guide To Different K'nex Ball Machine Types
The Official Guide for Building Knex Ball Machines
Knex ball machine: Project Spinzy
Knex ball machine - project aquaduct.
Posted:Oct 25, 2010
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