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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/cad

Editable CAD models and assemblies for all mechanical components.

Purpose

This directory contains the source CAD files for all mechanical components and sub-assemblies in the project. These are the master files used for design, modification, and manufacturing preparation.

Organization by Sub-Assembly

Organize CAD files by functional sub-assemblies:

cad/
├── main-assembly/              # Complete system assembly
│   ├── system-assembly.sldasm
│   ├── system-layout.dwg
│   └── assembly-bom.xlsx
├── pcb-mount/                  # PCB mounting and support
│   ├── pcb-bracket.sldprt
│   ├── standoffs.sldprt
│   └── mounting-plate.sldprt
├── sensor-housing/             # Sensor enclosures and protection
│   ├── sensor-mount.sldprt
│   ├── protective-cover.sldprt
│   └── cable-gland.sldprt
├── connector-panel/            # External interfaces
│   ├── front-panel.sldprt
│   ├── connector-cutouts.dxf
│   └── panel-assembly.sldasm
├── cooling/                    # Thermal management
│   ├── heat-sink.sldprt
│   ├── fan-mount.sldprt
│   └── thermal-interface.sldprt
└── fasteners/                  # Custom hardware
    ├── custom-screws.sldprt
    ├── spacers.sldprt
    └── washers.sldprt

File Types

Part Files: Individual components (.sldprt, .prt, .ipt)
Assembly Files: Multi-part assemblies (.sldasm, .asm, .iam)
Drawing Files: 2D technical drawings (.slddrw, .dwg, .idw)
Neutral Formats: STEP, IGES for cross-platform compatibility

CAD Standards

Units: Use consistent units (preferably metric)
Materials: Assign appropriate materials to all parts
Properties: Include mass, volume, and center of gravity
Features: Use parametric modeling with design intent
Configurations: Use configurations for part variations

File Naming Convention

Use descriptive, consistent naming
Include version numbers for major revisions
Examples:
- PCB-Mount-Bracket_v2.1.sldprt
- Main-Housing-Assembly_v1.3.sldasm
- Connector-Panel-Front_Rev-C.sldprt

Design Documentation

Include design intent in feature names
Document critical dimensions and tolerances
Specify manufacturing processes and materials
Include assembly notes and special requirements
Reference related electrical and thermal requirements

Version Control

Commit CAD files with descriptive messages
Tag major design milestones
Include PDF drawings with CAD file commits
Document design changes in commit messages
Use branching for experimental design variations

Manufacturing Preparation

Generate STEP files for manufacturing
Create technical drawings with GD&T
Specify surface finishes and treatments
Include material specifications
Document assembly sequences and tooling requirements

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