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First Semester Exam: Building a Bionic Arm

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Bionic limbs have evolved to suit a great variety of needs. From applications of power to dexterity, mechanical devices have begun to merge with the human body to help heal injuries in hundreds of people. An online simulator is sued to create a bionic arm and learn bout the basic components behind it.

Published in: Engineering
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First Semester Exam: Building a Bionic Arm

  1. 1. Bionic Arm Design Process First Semester Examination Panayotis Manganaris
  2. 2. Creating a Bionic Arm ● Objective: Create a bionic arm which will succeed in two, or more, out of four utility tests – Discover the different components of robotic arms ● Budget – $26,000
  3. 3. Choosing materials Motors: Electric actuators are inexpensive but inefficient ● Pneumatic actuators are light, but provide limited torque ● Miniature rocket motors provide heavy torque, but are very expensive – Strength and the capacity to lift a weight is a limiting factor in daily activity. Cost $15,000
  4. 4. Choosing materials End Effectors: A few different grippers were available as hands ● Electric hands are inexpensive but have limited dexterity. ● Bionic hands are life-like but limited in power. – The lack of dexterity in other hands would be a persistent issue in daily activity. Cost $10,000 ● Miniature rocket motor hand is very strong, but limited in dexterity.
  5. 5. Choosing materials Body/skin: There were various materials suited to forming and protecting the electric arm. ● Plastic is cost-effective but lacks durability. – Lightweight plastic suits the arm. Fits in the budget: $1000 ● Titanium is highly durable but expensive ● Carbon fiber is light-weight but could fatigue through constant usage.
  6. 6. Bionic Arm Final
  7. 7. Envelope Test ● Envelop Test failed due to short actuator, limited range
  8. 8. Dexterity Test Success
  9. 9. Weight Test Success
  10. 10. Brick Wall Test Success
  11. 11. Test Results Overview

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