YouTuber Robert Murray-Smith has created a 3D printable model of the Archimedes Drive developed by IM Systems. He presents the model in a video and makes the 3D model files available on the Thingiverse platform. The model demonstrates how a friction-based transmission system works.
The gearbox uses elastic rollers made of TPU (thermoplastic polyurethane) instead of metal components. The elasticity of the material is intended to improve power transmission and reduce wear on the components.
The main components of the system are a carrier for the TPU rollers, a central sun gear and an outer ring. The rollers function like planetary gears in a classic planetary gearbox. The TPU material of the rollers creates a spring effect that increases the contact surface between the components.
Production using 3D printing requires high precision. The dimensional accuracy varies depending on the printer used. Users may need to adjust the dimensions of the rollers to achieve correct function.
The system converts high torque at low speed into lower torque at higher speed. A technical advantage is the minimal backlash when changing direction. Potential applications include wind turbines.
The model is mainly used for the technical analysis of the Archimedes Drive concept. The STL files are available to download free of charge. A video on Robert Murray-Smith’s YouTube channel shows the assembly and function of the gearbox.
Subscribe to our Newsletter
3DPresso is a weekly newsletter that links to the most exciting global stories from the 3D printing and additive manufacturing industry.
