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Signing UpStep 1: Materials
A tube at least three inches long
Duct tape
A screw
Thin rod
Small weight (optional)
Spring a little longer than tube
String or fishing line
Rod the same width as the tube's hole
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but i cant ever find the right kind of spring.
Nihar, would you mind if i post an instructable of a claymore version of this?
do people want me to post it?
lemme know