The goal of the project was to build a functional lowcost, trans-radial prosthetic arm that is ea... more The goal of the project was to build a functional lowcost, trans-radial prosthetic arm that is easily maintained. The first task was to determine the ratio of length needed between the terminal end and the arm brace. This ratio matches the Golden ratio of 1.68 because it is biologically motivated. The second task was to determine the maximum amount of force that could be used to grip objects without causing damage. A larger surface area on the gripper will allow more pressure to be used to hold an object without causing damage. The third task was to use law of Levers to choose the best fulcrum placement to refine grip pressure. The significance of the project is to develop an effective low-cost, easily maintained prosthetic arm that could benefit people with disabilities in developing nations and who are living below the poverty line and using in MESA competition. Materials and methods To begin the design, a mechanical finger was built with wooden tongue depressors as bone material;...
This open access Article is distributed under the terms of the Creative Commons Attribution-NonCo... more This open access Article is distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0). All documents in PDXScholar should meet accessibility standards. If we can make this document more accessible to you, contact our team.
The goal of the project was to build a functional lowcost, trans-radial prosthetic arm that is ea... more The goal of the project was to build a functional lowcost, trans-radial prosthetic arm that is easily maintained. The first task was to determine the ratio of length needed between the terminal end and the arm brace. This ratio matches the Golden ratio of 1.68 because it is biologically motivated. The second task was to determine the maximum amount of force that could be used to grip objects without causing damage. A larger surface area on the gripper will allow more pressure to be used to hold an object without causing damage. The third task was to use law of Levers to choose the best fulcrum placement to refine grip pressure. The significance of the project is to develop an effective low-cost, easily maintained prosthetic arm that could benefit people with disabilities in developing nations and who are living below the poverty line and using in MESA competition. Materials and methods To begin the design, a mechanical finger was built with wooden tongue depressors as bone material;...
This open access Article is distributed under the terms of the Creative Commons Attribution-NonCo... more This open access Article is distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0). All documents in PDXScholar should meet accessibility standards. If we can make this document more accessible to you, contact our team.
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