Things You'll Need:
- Wire clothes hanger
- Spring
- 1/2-inch copper pipe
- 1/2-inch wooden dowel
- Hacksaw
- Wire cutters
- Pliers
- Drill
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Step 1
Cut the copper pipe to about 5 inches in length using the hacksaw. Make sure to wear gloves when doing this to prevent cutting your fingers with the saw or the pipe.
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Step 2
Measure 1 1/2 inches down the pipe. Make a slice halfway through the pipe. Make a horizontal cut from the end of the pipe to the section you cut. The pipe should now be missing a 1 1/2-inch section.
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Step 3
Take the wooden dowel and cut off a 1/4-inch piece. Use the drill and make a 1/16-inch hole in the middle of the wooden dowel.
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Step 4
Remove the bottom straight section of the wire hangar using the wire cutters. Bend a quarter of the end to form a right angle. Insert the wire through the wooden dowel and the spring.
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Step 5
Crush the pipe slightly with the pliers at the section that is half cut. Insert the spring assembly into the copper pipe.
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Step 6
Tug the spring through the copper pipe until it begins compressing it. Bend the wire and trim off the extra.
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Step 7
Rotate and pull the wire so that it snags on the edge of the half pipe. Load the spring cannon and turn the wire to fire.
