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you need to insert the card label side up, and firmly push it into the slot until the edge is flush, with nothing sticking out. If it still isn't functioning, you need to contact the seller for a replacement or refund.

K'nex Extreme... | Answered on Jan 24, 2018


try using my ole favorite alt="image3.png"> its a little variation of Pythagorean theorem but its allways worked for me

K'nex Education... | Answered on Sep 19, 2015


WERE WOULD I BE ABLE TO GET A COPY OF TE INSTRUCTIONS TO BUILD THE COMET CHASER

K'nex Toys | Answered on Apr 23, 2014

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