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This paper presents an approach to designing and fabricating a compact cycloidal gearbox using polymer plastic and 3D printing technology, tailored for robotic arm applications. Cycloidal drives are known for their high transmission ratios, torsional rigidity, and minimal backlash, making them ideal for precise robotic manipulations. The gearbox design incorporates three cycloid gears offset by 120 degrees to balance forces and improve stability. Design parameters were carefully calculated to ensure optimal gearbox performance, with critical components 3D printed using PLA filament on a homemade printer. Testing revealed a maximum torque output of 7.65 Nm, demonstrating the gearbox's robust performance under load. Future enhancements could focus on improving camshaft durability through advanced printing techniques or alternative materials. In conclusion, this 3D printed cycloidal gearbox offers a compelling solution for robotic arms, combining compactness with high torque transmission, low noise operation, and minimal maintenance. Despite assembly challenges, the gearbox's benefits make it a superior choice for demanding robotic applications.

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Design and Fabrication of Cycloidal Drive Using FDM 3D Printer

  • 会议论文

  • 发表日期：

    2025年

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  • Malik Čabaravdić,
  • Kenan Varda,
  • Amer Sarajlić,
  • Haris Lulić

摘要

This paper presents an approach to designing and fabricating a compact cycloidal gearbox using polymer plastic and 3D printing technology, tailored for robotic arm applications. Cycloidal drives are known for their high transmission ratios, torsional rigidity, and minimal backlash, making them ideal for precise robotic manipulations. The gearbox design incorporates three cycloid gears offset by 120 degrees to balance forces and improve stability. Design parameters were carefully calculated to ensure optimal gearbox performance, with critical components 3D printed using PLA filament on a homemade printer. Testing revealed a maximum torque output of 7.65 Nm, demonstrating the gearbox's robust performance under load. Future enhancements could focus on improving camshaft durability through advanced printing techniques or alternative materials. In conclusion, this 3D printed cycloidal gearbox offers a compelling solution for robotic arms, combining compactness with high torque transmission, low noise operation, and minimal maintenance. Despite assembly challenges, the gearbox's benefits make it a superior choice for demanding robotic applications.