K'nex Hidden Blade

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About: Freshman Mechanical Engineer at UMBC

I tried to make it so you could build from the pictures. Leave a comment if you do decide to build 

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    8 Discussions

    Very cool! Does it spring out with rubber bands, or is it just a manual hidden blade? I'm not trying to spam, but you should take a look at my very latest hidden blade for ideas.

    3 replies

    ya, i started off trying to build yours but i couldnt, so i made my own. you swing your arm to slide it out and then it locks.