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Related Concept Videos

Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

663
An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the torque...
663

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Related Experiment Video

Updated: Dec 23, 2025

Design and Fabrication of Ultralight Weight, Adjustable Multi-electrode Probes for Electrophysiological Recordings in Mice
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[Design and verification of microelectrode twisting machine].

Xinyu Liu1, Dongyun Wang2, Enhui Zhao2

  • 1School of Intelligent Manufacturing, Huanghuai University, Zhumadian, Henan 463000, P.R. China;Henan Key Laboratory of Brain Science and Brain-Computer Interface Technology, Zhengzhou University, Zhengzhou 450001, P.R. China.

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi
|April 25, 2020
PubMed
Summary

This study presents a low-cost, Arduino-based microelectrode fabrication machine using 3D printing. The developed device simplifies microelectrode production, making it more accessible and affordable for research and applications.

Keywords:
animal robotneural stimulationthree dimensional printingtwisted microelectrode

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Robotics

Background:

  • Microelectrodes are crucial interfaces for neural prostheses, deep brain stimulation, and animal robotics.
  • Current microelectrode fabrication methods are often expensive and complex.

Purpose of the Study:

  • To develop an affordable and simplified microelectrode fabrication machine.
  • To verify the performance of microelectrodes fabricated using the new method.

Main Methods:

  • A microelectrode twisting machine was designed using an Arduino platform and 3D printing technology.
  • Fabrication parameters, including twisting turns and reverse rings, were investigated.
  • Neural stimulation performance was evaluated.

Main Results:

  • Optimal fabrication involves approximately 1.8 positive twisting turns per unit length and around 5 reverse twisting rings.
  • The 3D-printed machine is inexpensive, simple to manufacture, and expandable.
  • Fabricated microelectrodes demonstrated effective neural stimulation capabilities.

Conclusions:

  • The proposed microelectrode twisting machine offers a cost-effective and accessible solution for microelectrode fabrication.
  • This innovation supports personalized microelectrode production and reduces experimental costs.
  • The device shows promise for wider adoption in neuroscience and related fields.