Design Refinement Coordination for Community Prosthetic Fitting Initiative — Boston/Cambridge/Somerville Area

[zhub9006]

Design Refinement Discussion: Open-Source Prosthetic Hand Design for Community Fitting

Context

We are coordinating a community prosthetic fitting initiative across the Boston/Cambridge/Somerville, MA area. Our goal is to leverage open-source prosthetic design projects to improve accessibility and affordability of prosthetic devices.

Purpose

This issue is to coordinate design refinement discussions between engineers, designers, and community volunteers working on open-source prosthetic hand/arm projects. We aim to:

1. Align design standards across open-source prosthetic projects (OpenBionics, Handy, r-echeverri's myoelectric arm, etc.)
2. Standardize fitting protocols for community events
3. Identify key mechanical/electronic improvements needed for durability, comfort, and usability
4. Coordinate volunteer contributions from engineers and designers in the Boston/Cambridge/Somerville area

Current Open-Source Projects Under Review

• OpenBionics/Prosthetic-Hands — Parametric CAD, differential mechanism, 144 grasps
• r-echeverri/Open-Source-Low-Cost-Myoelectric-Prosthetic-Arm — FDM 3D-printed myoelectric arm, $263 cost
• MrTG1B/Handy — ESP32-powered, wireless myoelectric control
• AiPEX-Lab/3D-printed-Prosthetic-Design — Digital reconstruction & mechanical prediction
• zhub9006/community-prosthetic-fitting-initiative — Community coordination hub

Proposed Discussion Topics

• Mechanical design improvements (joint stability, material selection)
• EMG sensor integration and signal processing
• 3D printing tolerances for comfortable fit
• Palm and finger geometry standardization
• Battery life and power management
• Modular design for easier repair and customization
• Cost reduction strategies for community-level production

Meeting Format

• We plan a hybrid meeting with engineers from across the region
• Venue: TBD — seeking accessible community space in central Boston/Cambridge/Somerville area
• Timeline: Initial discussion within 2-4 weeks

How to Contribute

Engineers and designers interested in participating please:

1. Comment on this issue with your expertise area
2. Fork relevant repositories and submit PRs for design improvements
3. Join our community communication channel (TBD)

Labels

• design-refinement
• prosthetics
• open-source
• community-initiative
• Boston-area