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Firing Mechanism help Answered

I need help making a firing mechanism. I made one of the bamboo stick shooter with a pen and a rubber, but then I taped the whole thing on a tube of paper for stability and aim. Any ideas? Please, if you can, try to make one with mainly paper and no Knex pieces? Thanks in advance if you can.


There are some parts of the trigger area which I cant find a way to replace, like the washers, rivets, bolts, and the light spring.

Thanks for the site, but I limited supplies and cannot make this. Thanks for the effort, though.

don't try the whole thing, just the trigger area. the mechanics are the important part, not what it's made of. how about a piece of wire bent into the same shape, or a pencil carved to shape.