# Rubber Band-Powered Vehicle Delivers Mechanical Thrills Experimental vehicle moves without an engine using elastic bands. - **Source:** [Yanko Design](https://brifing.si/source/41d28791-ef47-4e0b-a40a-2a5efca0c11b) - **Published:** 2026-07-14 - **Topic:** [Software & Engineering](https://brifing.si/c/engineering) - **Original article:** - **On Brifing:** https://brifing.si/s/319c2068-a457-4a18-a361-c0876fb91f94 ## From Childhood Curiosity to Engineering Project Inspired by wind-up toy cars from his childhood, James Bruton developed a vehicle powered by resistance bands. He aimed to convert stored elastic energy into motion using fitness bands. This seemingly simple idea required complex engineering solutions to become functional. ## First Prototype and Lessons Learned The initial aluminum frame prototype moved about 2 meters with a single band before snapping. Bruton used this failure to redesign the drivetrain with 6:1 gearing ratio. The new configuration delivered smoother power transfer without permanently deforming the elastic material. ## Multi-Band System Breakthrough Replacing single band with 18 resistance bands arranged in three parallel columns, Bruton connected each to a central shaft via bevel gears. This configuration increased available torque while optimizing unwinding time. CNC-machined aluminum components reinforced the structure. ## Physics Limitations and Creative Engineering Experiments showed series-connected bands didn't provide expected torque increase. The parallel arrangement improved energy efficiency by 300%. Custom bearings withstood extreme twisting forces from the tightly wound elastic bands during operation. ## Final Result: 12 Meters of Kinetic Success The final design carried Bruton for 12 meters. Carefully wound bands stored maximum energy while 3D-printed gears and aluminum chassis effectively converted 85% of kinetic energy into motion. Multiple reduction stages optimized power delivery. ## The Fun Side of Mechanical Engineering This project demonstrates how complex engineering principles can be applied with simple materials. While not an electric vehicle alternative, it provides valuable experimental insights into energy conversion mechanisms. Proves mechanical thrills don't require conventional engines. ## Sources covering this story - https://www.yankodesign.com/2026/07/13/this-elastic-band-powered-car-proves-you-dont-need-an-engine-to-experience-real-mechanical-thrills/?utm_source=rss&utm_medium=rss&utm_campaign=this-elastic-band-powered-car-proves-you-dont-need-an-engine-to-experience-real-mechanical-thrills — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._