Picture of knex butterfly knife
Things you NEED!

to make it bigger, whenever i say yellow rod, use a red rod. and smaller, use blue rod.
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Step 1: Pt.2

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put in grey connectors, pegs, and rods as shown

Step 2: Handles

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make 2 of these

Step 3: Attachment 1

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loosely add "new" connecters

Step 4: Attachment 2

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add handles asshown

Step 5: Blade

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add yellow rod here.

Step 6: DONE


i  made a video on how to use this