this a knex bow but it has a difference between most others, it's arms are rods not connectors.
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Step 1: Parts
these are the parts you will need to make this bow.
1 grey rod
2 orange connectors
3 red rods
1 red connector
6 yellow connector
2 grey connectors
1 yellow rod
10 green connectors
12 green rods
10 white rods
1 doubled up rubber band
Step 2: Making the Skeleton
this the skeleton of the bow.
Step 3: Making the Bow Arm Supports
these are the supports. this is a critical part of the bow, they prevent the arm form snapping off.
Step 4: Finishing the Bow Arm Supports
these are the finished bow arm supports.
Step 5: Attiching the Bow Arm Supports
this is how the bow arm supports are attached
Step 6: Adding More Support
this is also needed or the middle of the bow will bend
Step 7: Finishing the Mid-section Supports
this is the mid-section supports finished. do this on both sides.
Step 8: Making the Arrow Track
this is where the arrow will leave the bow, also, it stabilizes the arrow. what side you put this on depends if you are lefty or righty.
Step 9: Put the "bow String" On
have two rubber bands and double them up using a slipknot, then slipknot both ends to the two grey connectors,one on one end one on the other the attach them to the bow arms. congrats your bow is done now to make the arrows.
Step 10: Making the Arrows
to make the the arrow use the grey rod and the remaining red rod and connect them together using the orange connector and then connect the other one to the end of the red rod.
Step 11: How to Fire
to fire put the arrow(red rod against the rubber band)in the track.then pull back and fire.