Introduction: Pencil Crossbow
This is my entry in the Instructables Launch It Contest.
It is a simple and powerful pencil shooter/crossbow
Step 1: Safety Gear
You WILL NEED safety equipment when building and using this device.
When building this device you WILL NEED safety goggles when using the saw and the Exacto knife
When firing this device you WILL NEED safety goggles.
Above all: use common sense.
Don't fire things at the cat.
Don't aim things at your self.
Don't give this to someone that you would not trust with a book of matches.
Step 2: Gather Materials
2 Pencils (1 sharpened, 1 unsharpened)
1 Rubber Band
Step 3: Remove Erasers
Remove the erasers and the metal piece from the ends of both pencils using the pliers.
Just pry them off.
You can save them if you like but they are not needed in this project.
Step 4: Notch Ends of Pencils
Use the saw to cut a small notch in both ends of the unsharpened pencil and the unsharpened end of the sharpened pencil
Step 5: Carve the Arrow Rest
Use the Exacto knife to carve a dent/notch in the middle of the unsharpened pencil to act as the arrow rest.
Make sure that when carving the arrow rest the notched in the ends of the pencil are vertical so the elastic will fit properly.
Step 6: String the Bow
You can either String the rubber band once or twice around the unsharpened pencil.
String the rubber band through the notches in the pencil
Step 7: Firing!
To fire your crossbow pull back all of the elastics insert the sharpened pencil.
Make sure that the notch in the back of the pencil has the elastics in it
Pull back the pencil and release it.
The ealstic will not go back very far if it is doubled