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A knex ball machine with a normal chain lift and a modification of I am Canadian's lift. It also has Darth Trainman's red ball drop. Cranks are supposed ...
K'nex Ball Machine Lift: Giant Ball Catapultby Mechanical Master
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Knex Ball Machine Dangerousby Mechanical Master
Project Accuracy-A K'nex Experimentby MechanicalCreationMaster
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