The Kinetic GBC Marble Run: 5 Meters of Engineering Excellence

Experience the ultimate in mechanical motion with the Great Ball Contraption (GBC) by mojibricks. As our most intricate marble run to date, this monumental build features over 5 meters of twisting track, making it one of the largest roller-coaster-style models ever conceived.

High-Velocity PRO Series Engineering

At the heart of this 2,400-piece masterpiece is the mojibricks PRO Series electric motor system. This high-torque setup propels the marbles at high speeds through complex track segments and sharp hairpins. The journey begins with a rhythmic, step-ladder style marble climb, creating a continuous loop of mesmerizing kinetic action.

Immersive Motion & Mechanical Flow

This isn't just a build; it’s a living machine. Once the marbles navigate the sprawling 5-meter circuit, they are seamlessly collected in a recovery zone, ready for their next high-speed run. Designed for those who love motion mechanics and industrial design, this set stands 59cm tall and serves as an incredible showpiece for any workspace or gallery.

Technical Specifications

Dimensions:
Metric: 75cm x 20cm x 59cm
Imperial: 29.5in x 7.9in x 23.2in

Key Features & Mechanical Highlights

• 2,400+ Precision Components: A dense, rewarding project for fans of complex machinery.
• 5-Meter Track System: One of the longest integrated tracks available in a single set.
• PRO Series Motorisation: Includes high-speed electric motors for automated ball feeding.
• Mechanical Step-Climb: Features a synchronized ladder mechanism to lift marbles to the summit.
• Roller Coaster Dynamics: Engineered with gravity-fed slopes and high-velocity turns.
• mojibricks Quality: Includes a full part pack and a detailed physical instruction manual.

Build the motion. Feel the speed. Master the machine.