Robotime Mechanical Marble Run

Gear Ball Challenge

Take control of speed, timing and precision with Robotime’s Gear Ball Challenge — a thrilling 653-piece marble run designed for builders who love kinetic motion and smart mechanics. This dynamic wooden model combines clever engineering with playful design, featuring multiple adjustable tracks, switches and ramps that let you guide marbles through high-speed circuits and daring jumps. The transparent sky ring, jump ramp, and ejection ramp create a sense of real motion and excitement as the marbles race to the finish.

Once assembled, the automated lift system keeps the action continuous, while dials and switches allow you to control the flow for competitive or solo play. The satisfying sound of the copper bell marks the end of the challenge, rewarding precision and speed in equal measure. With an approximate build time of 5 hours, this is a highly engaging project perfect for family fun or display.

• 653 precision-cut wooden components
• Assembly time: 5 hours
• Difficulty level: ★★★★☆
• Assembled size: 29.5 × 19.5 × 20.5 cm
• Adjustable switches, ramps and track elements
• Includes automated lift and copper bell feature
• No batteries or glue required

Challenge your coordination and creativity with the Gear Ball Challenge — a perfect fusion of mechanics, motion and entertainment from Robotime.