The GBC 36 Obstacle Run – 42082 C Model has many surprising elements which count on pure randomness. A Flip Flop mechanism equally separates the GBC Balls over 2 balance bins. Both have their own route which will guide the GBC Balls in different directions. On top of that you can also easily modify the paths and guide the balls somewhere else. You take control!
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https://pv-productions.com/product/gbc-36-obstacle-run-42082-building-instructions/
See also our GBC C Model Building Instructions & other products: https://pv-productions.com/product-category/lego/