Instructions could be improved
Instructions could be improved, especially when the spacing is critical. More detail would help to reduce errors, in particular the alignment of the transport wheels.i had to reassemble 2 times. My two assemblies work poorly. I waxed all the gears multiple times to help, but the motor didn’t run smoothly. Marbles fall out at different location. Have had to glue tracks that wouldn’t stay down. My product marble run is the product i am speaking about. Marble jam on load, they fall out as they go from first track to second.