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Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
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Open continuum robotics-one actuation module to create them all.

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Summary

Researchers developed an open-source actuation module for building continuum robots. This module enables robots to sense external forces, advancing research in robot dynamics and control.

Keywords:
actuationconcentric tube continuum robotcontinuum robotopen hardwareproprioceptive torque sensingtendon-driven continuum robottorque control

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Area of Science:

  • Robotics
  • Mechanical Engineering
  • Control Systems

Background:

  • Continuum robot research is hindered by the lack of commercial platforms, leading to fragmented, single-publication prototypes.
  • Significant research effort is diverted to developing proprietary hardware and software, impeding progress on core challenges.

Purpose of the Study:

  • To propose an open-source actuation module for constructing versatile continuum robots.
  • To demonstrate the capability of continuum robots built with this module for proprioceptive force sensing.
  • To foster a collaborative research environment through open-source hardware and software.

Main Methods:

  • Designed and implemented an open-source actuation module comprising a high-torque brushless motor, high-resolution optical encoder, and low-gear-ratio transmission.
  • Constructed three distinct types of continuum robots utilizing the developed actuation module.
  • Investigated and validated the proprioceptive force-sensing capabilities of the fabricated continuum robots.

Main Results:

  • Successfully built three different continuum robot configurations using the unified open-source actuation module.
  • Demonstrated for the first time that continuum robots can proprioceptively detect external forces.
  • Established a foundation for exploring advanced control and dynamics in continuum robotics.

Conclusions:

  • The proposed open-source actuation module democratizes continuum robot research by enhancing accessibility and reproducibility.
  • The ability of these robots to sense external forces opens new avenues for research in continuum robot dynamics and control.
  • The Open Continuum Robotics Project facilitates collaborative development and accelerates innovation in the field.