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this can change height
piece count: rods: blue:3 yellow:8 red:8 gray:1 connectors: red:6 purple:4 yellow:1 blue:4 white:1 extra: tan clips:4
Knex Ball Machine Element: Trampoline Armby Thibault Art
Knextrampolineby colton blake
knex ball machine "Crazy"by Sorunome
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