ST · Start and end

An S2 with a wall at one end.

The start module (ST) holds a marble at rest until the lift takes it; the end module (ZI) stops it. Both are an S2 with a 4 mm end wall.

Footprint: 2 steps, 100 mm
Drop: 5 mm, 5 %
Moving parts: none
Print: PLA, 1.7 h each
Bought parts: none
Variants: ST, ZI

In the closed loop of Round One the start module is where the lap begins: the marble leaves the lift, rolls into ST and from there into the first curve.

Other track

All 32 modules

S2 · Short straightTwo grid steps of rail ladder.S4 · StraightFour grid steps, the test module for slope.S8 · Long straightLong straights come from the laser, not the printer.

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