This is my first instructable so please leave positive comments.
In this instructable ill show ya my knex shooter.cheap but powerful.
Step 1: Making the Canon
All you have to do is build the canon like shown in the picture.
Step 2: The Video!!
When its done, all you have to do is load it and fire!
There is a video to show you its true powa!!!!
The hardest your rubber band is,stronger it will shoot.