The second motor here, to the left, controls the rubber belt which pushes the train up the two sections of concave curved track. Note that there are 3 sections of convex curved track at the top.
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[Previous] -- [Matt's LEGO Roller Coaster] -- [Next]
The second motor here, to the left, controls the rubber belt which pushes the train up the two sections of concave curved track. Note that there are 3 sections of convex curved track at the top.
[Previous] -- [Matt's LEGO Roller Coaster] -- [Next]