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Put your finger on this bit and fire is actually a trigger
Drive pole is actually a ram rod.
I have a feeling this will shatter my K'nex rods-
Fast-moving, plastic K'nex rod + dense, solid glass (?) marble = shattered rod?
Cool idea though. Could you post a video?
1 metre = 3 feet
And it's spelled metre, not meter ( in Canada)
1 meter is three inches longer than a yard