Endless loop kit: motorised Ferris wheel, zigzag rails and marbles, compatible with GraviTrax

Endless loop kit — Everything for a run that loops on its own, for less than buying the pieces one by one: the motorised Ferris wheel lifts the marbles continuously, the zigzag rails bring them back down, and 5 coloured marbles join the 3 supplied with the wheel.

In the run

Place the motorised Ferris wheel (13 cm high) at the lowest point of the build, where the marbles finish their course, and connect its exit to a new descent. The zigzag rails make the marble snake between pieces: the set includes 2 rails of 7 cm, 2 of 13 cm and 2 of 19 cm, to span a short or a long gap. The marble slows down at every bend, runs back down, then returns to the wheel: the run becomes an endless loop. With 8 marbles in all, 5 of them easy to tell apart by colour (black, blue, gold, red and orange), several marbles can race in the same loop.

Contents: 1 green motorised Ferris wheel, 13 cm high + 3 marbles, 6 black zigzag rails (2 small ones of 7 cm, 2 medium ones of 13 cm and 2 large ones of 19 cm) and 5 coloured metal marbles: 15 pieces in all. Batteries and GraviTrax pieces not included.

Good to know

• A GraviTrax or GraviTrax PRO starter set is still needed to build the loop; the Junior range is not concerned. Ages 5 and up.
• The wheel runs on 2 AA batteries, not included, housed in a built-in compartment: remove them before cleaning the wheel.
• The wheel is a tight fit: take the time to align it on the base plate.
• Marbles are small objects: use them under adult supervision. The 5 extra marbles act as spares if one escapes along the way.

The wheel and the zigzag rails are printed to order near Grenoble in bio-based PLA: more about the workshop