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Tired of your knex motor draining your batteries? Try this instructable learn how to make your knex motor faster and more powerful using a 3 volt adapter
A Knex motor, An adaptor with multiple voltage selector, 1 meter of wire, scissors, tape, screwdriver
Mod: Tiny Tortureby livetobelieve
K'NEX GUNby mcapers1
K'nex Go Kartby knexguy237
K'nex or knex trike chassisby Redneck2
K'Nex Folding Compound Bowby Skye-R
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