The Citadel Is The King Of K'nex Builds. | Hackaday
This is probably the first time posting anything about my ball machine here. I'm making decent progress and only have to attach the elements now, but I will still need to clean
This K'Nex Pinball Machine Is the Best Pandemic Project Yet
Knex Ball Machine: Paradox, Elements | Knex, Ball, Designer toys
Knex Ball Machine Elements, Lifts, and More - Instructables