Hand Mixer Stand for Users with Muscle Weakness

24-370 Mechanical Design: Methods and Applications · Fall 2024 · Team of 6

Overview

In this mechanical design class at CMU, my team and I built a rotating hand-mixer stand for users with arm or hand muscle weakness. It’s basically a low-cost, accessible alternative to a stand mixer using simple mechanics and PLA parts.

My teammates handled most of the CAD, electronics, and heavy calculations, while I focused on visualization, communication, and analysis. I helped with the FEA setup, created the CAD renders and motion animations, and took all the product-style photos of our final prototypes. I also contributed to early ideation, the budget, and the continuous-improvement analysis, and I even filed an IP disclosure with CMU’s CTTEC just to see if the idea had potential!

Overall, it was a fun team project that taught me a lot about collaboration and user-focused design, and it was super rewarding to see everything come together in the end.

How it works

Full Assembly Motion Animation
Exploded CAD Animation

Contributions

  • Mechanical analysis: contributed to FEA setup + validation

  • Visualization & communication: rendering, animation, professional photography, presentation design

  • Documentation: report writing, continuous improvement, budget writing

  • Innovation & entrepreneurship: completed an IP disclosure and submitted to CTTEC

  • Early ideation: contributed ideas during early design phase

Final Render
FEA Simulation

Outcome

  • Functional prototype

  • Cost: ~$80 vs ~$250 KitchenAid

  • Adjustable clamps + rotating base + motorized bowl

  • Aimed at accessible cooking

Prototype Gallery