grabowski
a0c843204d
- 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
80 lines
2.9 KiB
Markdown
80 lines
2.9 KiB
Markdown
# /mechanical/cad
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Editable CAD models and assemblies for all mechanical components.
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## Purpose
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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.
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## Organization by Sub-Assembly
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Organize CAD files by functional sub-assemblies:
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```
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cad/
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├── main-assembly/ # Complete system assembly
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│ ├── system-assembly.sldasm
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│ ├── system-layout.dwg
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│ └── assembly-bom.xlsx
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├── pcb-mount/ # PCB mounting and support
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│ ├── pcb-bracket.sldprt
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│ ├── standoffs.sldprt
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│ └── mounting-plate.sldprt
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├── sensor-housing/ # Sensor enclosures and protection
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│ ├── sensor-mount.sldprt
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│ ├── protective-cover.sldprt
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│ └── cable-gland.sldprt
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├── connector-panel/ # External interfaces
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│ ├── front-panel.sldprt
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│ ├── connector-cutouts.dxf
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│ └── panel-assembly.sldasm
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├── cooling/ # Thermal management
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│ ├── heat-sink.sldprt
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│ ├── fan-mount.sldprt
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│ └── thermal-interface.sldprt
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└── fasteners/ # Custom hardware
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├── custom-screws.sldprt
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├── spacers.sldprt
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└── washers.sldprt
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```
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## File Types
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- **Part Files**: Individual components (.sldprt, .prt, .ipt)
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- **Assembly Files**: Multi-part assemblies (.sldasm, .asm, .iam)
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- **Drawing Files**: 2D technical drawings (.slddrw, .dwg, .idw)
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- **Neutral Formats**: STEP, IGES for cross-platform compatibility
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## CAD Standards
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- **Units**: Use consistent units (preferably metric)
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- **Materials**: Assign appropriate materials to all parts
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- **Properties**: Include mass, volume, and center of gravity
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- **Features**: Use parametric modeling with design intent
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- **Configurations**: Use configurations for part variations
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## File Naming Convention
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- Use descriptive, consistent naming
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- Include version numbers for major revisions
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- Examples:
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- `PCB-Mount-Bracket_v2.1.sldprt`
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- `Main-Housing-Assembly_v1.3.sldasm`
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- `Connector-Panel-Front_Rev-C.sldprt`
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## Design Documentation
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- Include design intent in feature names
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- Document critical dimensions and tolerances
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- Specify manufacturing processes and materials
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- Include assembly notes and special requirements
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- Reference related electrical and thermal requirements
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## Version Control
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- Commit CAD files with descriptive messages
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- Tag major design milestones
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- Include PDF drawings with CAD file commits
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- Document design changes in commit messages
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- Use branching for experimental design variations
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## Manufacturing Preparation
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- Generate STEP files for manufacturing
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- Create technical drawings with GD&T
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- Specify surface finishes and treatments
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- Include material specifications
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- Document assembly sequences and tooling requirements
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