Knex Yoyo By 302422 in LivingLEGO & K'NEX2,27667Save PDFFavoriteIntroduction: Knex YoyoBy 302422Follow More by the author: About: I Love building out of knex. I like watching investigation shows More About 302422 »Step 1: Step 2: Step 3: Step 4: Step 5: Tie string to spacerStep 6: Step 7: Step 8: Step 9: All done