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grabowski a0c843204d Update mechanical folder structure for multiple sub-assemblies

- Refactor mechanical/ directory to support multiple sub-assemblies instead of just enclosures
- Update mechanical/README.md with comprehensive sub-assembly organization examples
- Enhance mechanical/cad/README.md with detailed sub-assembly structure (PCB mounts, sensor housing, connector panels, cooling, etc.)
- Expand mechanical/enclosure/README.md to cover main housing, sub-enclosures, and removable panels
- Improve mechanical/stl/README.md with broader 3D printing categories including tooling, prototyping, and custom components
- Update mechanical/drawings/README.md with comprehensive technical drawing organization for all mechanical components
- Add detailed manufacturing considerations, quality control procedures, and file management guidelines
- Support complex projects with multiple mechanical sub-systems and assemblies

2025-08-04 14:30:36 +07:00

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/mechanical

Mechanical design files for all physical components and sub-assemblies.

Purpose

This directory contains mechanical design files for the complete physical system, including multiple sub-assemblies, enclosures, mounting hardware, and mechanical interfaces.

Directory Structure

cad/ - Editable CAD models and assemblies
drawings/ - 2D technical drawings and specifications
enclosure/ - Housing and case designs
stl/ - 3D printable files for all components

Sub-Assembly Organization

For projects with multiple mechanical sub-assemblies, organize by function:

mechanical/
├── cad/
│   ├── main-assembly/          # Complete system assembly
│   ├── pcb-mount/              # PCB mounting and brackets
│   ├── sensor-housing/         # Sensor enclosures and mounts
│   ├── connector-panel/        # Connector panels and interfaces
│   ├── cooling/                # Heat sinks, fans, thermal management
│   └── fasteners/              # Custom bolts, spacers, hardware
├── drawings/
│   ├── assembly-drawings/      # Overall assembly drawings
│   ├── detail-drawings/        # Individual part drawings
│   ├── interface-drawings/     # Mating part specifications
│   └── manufacturing-drawings/ # Fabrication specifications
├── enclosure/
│   ├── main-housing/           # Primary enclosure
│   ├── sub-enclosures/         # Secondary housings
│   └── covers-panels/          # Removable covers and access panels
└── stl/
    ├── enclosure-parts/        # 3D printable enclosure components
    ├── mounting-hardware/      # Custom brackets and mounts
    ├── prototyping/            # Prototype and test fixtures
    └── tooling/                # Assembly jigs and fixtures

File Types

CAD Files: Native CAD formats (.sldprt, .step, .iges, .f3d)
Drawings: PDF technical drawings and DXF files
3D Models: STL files for 3D printing, STEP for manufacturing
Assembly Files: Complete system assemblies and sub-assemblies

Design Considerations

Modularity: Design for easy assembly and maintenance
Manufacturing: Consider fabrication methods and tolerances
Materials: Document material specifications and requirements
Interfaces: Define mechanical interfaces between sub-assemblies
Thermal: Account for heat dissipation and airflow
Accessibility: Ensure access for assembly, service, and repair

CAD File Management

Use consistent naming conventions across all files
Maintain assembly hierarchy and relationships
Include material properties and finish specifications
Document design intent and critical dimensions
Version control CAD files with descriptive commit messages

Manufacturing Integration

Coordinate with PCB dimensions and mounting holes
Consider assembly sequence and tooling requirements
Define tolerances and critical dimensions
Specify surface finishes and treatments
Include inspection and quality requirements

Documentation Requirements

Assembly instructions and procedures
Bill of materials for mechanical components
Interface specifications and mating requirements
Manufacturing and fabrication notes
Testing and validation procedures

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