Introduction: Knex Combination Lock
This is a knex combination lock I made a while back. My original plan was to make a big safe, but I haven't had the time. So I'll just post the lock. The pictures are pretty self explanatory and I might post a video when I get the chance. Read the yellow boxes, that will explain it better. Feel free to ask any questions.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.