An Unusual Ball Shooter Design

For the last few weeks, a number of kids at MacFarlane Park IB Elementary have been working on ideas for a couple of GBC modules. One of the kids decided he wanted to build a ball shooter to feed a ramp he built using some large, quarter round slopes. I helped him put his ideas to work and we came up with this:

Ball shooter mechanism

There will be a liftarm across the top to help the gears stay engaged and it’s being displayed upside down to show off the mechanism. The H-pins are offset to keep the vertical gear centered over the two idler gears. The only trick will be accurately feeding it the balls. A motor will power the shooter from the red axle. It works pretty smoothly.

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