Behind the strange name of this LEGO Great Ball Contraption is hidden a cool compact module. The LEGO GBC “Door The Starts” is featuring a big yellow wheel on which are mounted several axles terminated with half-bushes. Balls are sliding from the entry ramp onto the axles, are turning all around the big wheel and sliding from the wheel to the exit ramp. The entry and the exit ramp are configured with the perfect angles to avoid jams. You can reproduce this shinny LEGO ball machines thanks to free building instructions available on Planet GBC.
Original design by: Phi.L
Number of parts: 328
Complexity for building: 
Price for Building: €€€, average
Door The Starts, on Phi.L YouTube channel
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