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  • Writer's pictureDaniel Lim

Iterative design of modular prosthetic hand

In 2015, I was involved in the creation of a 3D-printed prosthetic hand for Sophie. https://www.dahyundaniellim.com/design/sophie's-super-hand


Sophie's hand project

While the open-source design from Enablehand worked well for individuals missing all finger parts, it didn't cater effectively to those with partial hands.


Cyborg beast 3D-printed prosthetic hand from Enable hand


For a while, I had the idea of developing a modular prosthetic hand to address the limitations of existing 3D-printed models. Despite conceptualizing EXODIA, I struggled to progress to the physical prototype stage. The project's complexity made me apprehensive about embracing the iterative process required for functionality rather than just aesthetics.



However, this recent summer brought an opportunity to collaborate with Hailey Collier, a mentee from the TTE program. Together, we crafted a basic prosthetic hand model for STEM education. Guiding Hailey through iterative design using computer-aided design (CAD) and digital fabrication reminded me of the potential embedded in incremental improvements.


Hailey's iterative design on planar prosthetic hand model for STEM education

This experience reignited my passion for starting small and gradually refining designs. Presently, I'm engaged in enhancing the third version of the finger module. This journey has once again underscored the gratification of incremental advancements in the realm of creation and improvement. The picture and video below are examples of current progress.


Iterative design on the modular prosthetic finger part






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