Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Characterization of Exterior Materials for Cylindrical 3D Printed Humanoid Robot Arm with Various Thicknesses

두께별 3D 프린팅 원통형 휴머노이드 로봇 팔 외장재 특성 분석

  • Ye-Eun Park (Department of Fashion and Textiles, Dong-A University) ;
  • Dikshita Chowdhury (Department of Fashion and Textiles, Dong-A University) ;
  • Sunhee Lee (Department of Fashion and Textiles, Dong-A University)
  • 박예은 (동아대학교 의상섬유학과) ;
  • ;
  • 이선희 (동아대학교 의상섬유학과)
  • Received : 2024.05.21
  • Accepted : 2024.06.22
  • Published : 2024.06.30
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Abstract

In this study, the exterior materials for humanoid robot arm were developed using a cylindrical(Cyl) printing method based on fused filament fabrication(FFF) 3D printing technology. The cylinder printing method uses a three-dimensional cylinder modelingand prints large area curled inside using FFF 3D printing. Shore 95 A thermoplastic polyurethane filament was utilized to print soft exteriors with four different thicknesses (1.0, 2.5, 4.0 and 5.0 mm), and these were analyzed for their bending, compressive and tensile properties. The cylindrical models were created using Fusion 360 of 3D modeling program with specific dimensions and then sliced with set 3D printing conditions. The study found that printing time and weight increased proportionally with thickness, and the mechanical properties varied accordingly. Cyl1.0 of 1.0 mm thickness exhibited hard and tough characteristics due to its lack of infill, while Cyl5.0 of 5.0 mm thickness demonstrated excellent bending, tensile, and compressive properties, making it the most suitable for manufacturing. Other thicknesses, except for Cyl1.0, were also deemed appropriate for exterior materials of humanoid robot arm, depending on specific requirements such as lightweight and rigidity. Future research will investigate the application of these materials to other parts of humanoid robots.

Keywords

Acknowledgement

This research was funded by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. NRF-2021R1A4A1022059).

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