Layout A clears a 35 mm ball in computation. Do not print the full kit. Layout B is a design study — the helix meets the lift. Snap force, creep, and rolling were not tested.
Layout pieces are the real STLs, including the v1 lift. There is no stand-in track.
Drag to orbit · scroll or pinch to zoom · right-drag or two fingers to pan. The crank only turns the v1 wheel, axle, and crank. No ball is simulated. Height steps move the selected post and cap inside that class.