Shop / In Motion
In Motion
Gears, ramps and steel balls in motion.
In Motion is our marble run series: steel balls climb a lift, run a fixed track, and drop back to the start. Wooden marble runs are a different object from the plastic tracks most people picture — the track is the structure, and it is built once rather than rebuilt.
This is the most satisfying series to watch and the least forgiving to build. Everything in the finished object depends on the frame ending up flat and the rails staying clean, which is why we wrote a full troubleshooting guide for exactly that failure. If you enjoy tuning a thing until it runs right, this is the series for you; if you want a build that forgives a rushed evening, it is not.
The Starter Kit is the gentlest introduction to the mechanism. The Model Kit sits at the other end, with more mechanism to get right before the first ball completes the circuit.
Illustrated English build guide and a spare parts sheet in every box. Ages 14+.