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Show HN: I made a new sensor out of 3D printer filament for my PhD (paulbupejr.com)

886 points by 00702 · 856 days ago · 130 comments on HN

Article summary

The article discusses the development of a new sensor system called OptiGap, which can detect bend localization in soft robotics. The sensor uses a flexible optical light pipe with air gaps to generate coded patterns that can be decoded to determine the location of a bend. The system was developed as part of a PhD research project and has potential applications in various fields, including soft robotics and surgical robotics. The sensor's design and functionality are explained in detail, along with its evolution and testing.

Main themes

  • Soft Robotics
  • Sensor Development
  • Optical Sensing
  • Bend Localization
  • PhD Research
  • Innovation

What commenters say

  • The OptiGap sensor system has potential applications in various fields, including soft robotics and surgical robotics, and its simplicity and novelty make it a valuable invention.
  • The technology used in OptiGap is not entirely new, as similar methods are used in the optical networking industry to detect kinks or breaks in fiber optics cables.
  • The use of TPU and PMMA optical fiber in OptiGap is not crucial, and the system can work with almost any light-transmitting fiber, making it a versatile solution.
  • The development of OptiGap highlights the importance of clear explanation and context in presenting complex research projects, and the author's update to the blog post improved its clarity and effectiveness.
  • The commercial potential of OptiGap should be explored, and the author should consider seeking IP protection to secure the rights to their invention.
  • The comparison to existing technologies, such as time domain reflectometers, is necessary to understand the novelty and value of OptiGap.
  • The simplicity and low cost of OptiGap make it a promising solution for various applications, including those that require precise bend localization and sensing.
  • The potential applications of OptiGap extend beyond soft robotics, and it could be used in other fields, such as civil infrastructure monitoring, with embedded fiber optics.