Abstract
This project involved the design and prototyping of a modular desk organizer that addresses common workspace clutter while incorporating principles of human factors and ergonomics. The final product features interchangeable modules that users can configure based on their needs, promoting both functionality and personalization. The design was fully modeled in SolidWorks and validated through functional 3D-printed prototypes.
Problem Statement
Many students and professionals struggle with disorganized workspaces, leading to reduced productivity, increased stress, and inefficient use of desk real estate. Off-the-shelf organizers often fail to accommodate varying workflows, different desk sizes, or the specific tools used in engineering and design work. There was a need for a flexible, user-centric solution that could adapt to individual preferences.
Design Objectives
- Create a modular system allowing users to add or remove components based on their needs
- Apply anthropometric data to ensure comfortable reach and visibility of frequently used items
- Minimize material usage while maintaining structural integrity
- Design for manufacturability using additive manufacturing (FDM 3D printing)
Methodology
The design process began with user research and ergonomic guidelines from standards such as ANSI/HFES 100. Reach envelopes and optimal viewing angles were considered when positioning storage areas. Multiple design iterations were sketched before transitioning to SolidWorks for detailed 3D modeling.
The assembly was modeled with proper mates and clearance fits to ensure components could be printed and assembled without post-processing. Wall thicknesses were optimized for 3D printing (minimum 1.5mm for structural parts). Support structures were minimized through strategic part orientation.
Key Design Decisions
- Modular base: A rail system allows modules to slide in and out, enabling quick reconfiguration
- Angled pen holder: 15° tilt improves visibility and access, reducing wrist strain during retrieval
- Phone stand integration: Docking station keeps devices at eye level for video calls while charging
- Material: PLA selected for prototyping due to ease of printing and adequate strength for desk use
Results & Validation
Three full-scale prototypes were printed and assembled. User testing with five participants confirmed improved accessibility of commonly used items and positive feedback on the modularity. The design successfully reduced desk clutter while maintaining a compact footprint. Stress analysis in SolidWorks Simulation validated that the base structure could support the intended loads.
Key Learnings
- Importance of designing for manufacturing from the start: considering print orientation early saved significant iteration time
- Ergonomic principles significantly improved user satisfaction compared to initial non-ergonomic concepts
- Modularity adds complexity but greatly increases the product's adaptability and lifespan
Tools Used
SolidWorks (Part & Assembly), Ultimaker Cura, FDM 3D Printer, SolidWorks Simulation