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Technical illustration design

Skill cxcscmu/SkillLearnBench/skills/b1-one-shot-claude-haiku-4-5/anthropic-poster-design/technical-illustration-design

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Design principles and techniques for creating technical exploded-view diagrams and engineering documentation posters.

SKILL.md

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Technical Illustration & Exploded-View Design

Exploded-View Fundamentals

Purpose

An exploded-view diagram shows how a product is assembled by separating and offsetting each component along a central axis, revealing internal structure and layers.

Key Design Elements

  1. Layering Strategy

    • Arrange components vertically or along a diagonal axis
    • Each layer shows a distinct component or assembly
    • Maintain consistent spacing between layers
    • Typically 3-7 layers for clarity

  2. Assembly Axis

    • Define clear direction: vertical (top-down), diagonal (45°), or horizontal
    • All components should follow this axis consistently
    • Creates visual harmony and understanding of assembly order

  3. Component Highlighting

    • Use color coding to distinguish different component types
    • Each layer should be visually distinct
    • Maintain color consistency throughout poster

Five Essential Hardware Layers

For the Nova device example:

  1. Casing/Enclosure (Outermost)

    • Outer protective shell
    • Color: Corporate Dark
    • Style: Solid, structured, geometric

  2. Thermal Management Unit

    • Heat dissipation fins or thermal pads
    • Color: Secondary Brand Accent
    • Shows cooling capability
    • Geometric, modern appearance

  3. PCB (Printed Circuit Board)

    • Main electronics substrate
    • Color: Tertiary Brand Accent
    • Smaller, intricate details
    • Shows circuit layout

  4. Battery/Power System

    • Energy storage component
    • Color: Primary Brand Accent or Secondary
    • Rectangular or cylindrical shape
    • Often positioned prominently

  5. Interface Connectors (Innermost/Integrated)

    • Ports, connectors, user interface elements
    • Color: Primary Brand Accent
    • Highlight with annotation lines
    • Shows connectivity

Visual Hierarchy

Title & Headers

  • Primary Title: Large, bold, left-aligned or centered
  • Font: Bold sans-serif (Inter, DejaVuSans)
  • Color: Corporate Dark
  • Size: 48-72px

Annotations

  • Leader Lines: Thin (1-2px), Muted Gray
  • Text Labels: Smaller font (12-18px), Muted Gray
  • Important Labels: Corporate Dark for emphasis
  • Arrows: Simple, geometric, pointing to components

Composition Techniques

Isometric/Perspective Rendering

For 3D-like appearance on 2D canvas:
- Use polygon shapes with shading
- Front face: lighter fill
- Top/side face: darker fill (creates depth)
- Outline: thin stroke in Corporate Dark

Spacing & Alignment

  • Central axis (vertical or diagonal) as anchor
  • Consistent spacing: 60-100px between layers
  • Left alignment for text annotations
  • Right alignment for leader lines from top

Color Distribution

  • 60% background (Identity Light)
  • 25% structural elements (Corporate Dark)
  • 15% accents and highlights (Brand Accents)
  • Keep color intensity low and professional

Annotation Best Practices

Leader Lines

  • Start from component
  • Thin stroke (1-2px)
  • Soft color (Muted Gray)
  • End with small arrow or circle
  • No harsh angles - use smooth curves where possible

Labels

  • Positioned near leader line endpoint
  • Sans-serif font, 14-16px
  • Muted Gray for non-critical information
  • Corporate Dark for important specifications

Callouts

  • Highlight critical features with Primary Brand Accent
  • Keep callouts minimal and focused
  • Use consistent icon style for callout markers

Layout Structure

Recommended Poster Dimensions

  • 16:9 Aspect Ratio: 1920×1080px (digital) or 3840×2160px (high-res)
  • 4:3 Aspect Ratio: 1600×1200px or higher
  • Minimum resolution: 1440×1080px

Safe Margins

  • Top: 80-120px (for title)
  • Sides: 60-100px
  • Bottom: 60-80px
  • Leave breathing room around central device

Implementation Workflow

  1. Background: Solid Identity Light color
  2. Central Axis: Invisible guide for alignment
  3. Components (from outer to inner):
    • Casing outline (Corporate Dark)
    • Thermal unit (Secondary Accent)
    • PCB (Tertiary Accent)
    • Battery (Primary Accent)
    • Interfaces (Primary Accent with highlights)
  4. Annotations: Leader lines and labels (Muted Gray)
  5. Title: Bold heading (Corporate Dark)
  6. Final Details: Border, metadata if needed

Common Mistakes to Avoid

  • ❌ Components too crowded or overlapping
  • ❌ Inconsistent spacing or axis alignment
  • ❌ Too many colors or high saturation
  • ❌ Annotations obscuring device
  • ❌ Inconsistent line weights
  • ❌ Poor contrast between text and background
  • ✓ Maintain minimalism and professional appearance

Technical Diagram Best Practices

Color Coding System

  • Establish consistent meaning for each color
  • Document color assignments
  • Use same colors for same component types across multiple diagrams

Clarity Rules

  • One concept per annotation
  • Avoid text overlap
  • Use consistent font sizing
  • Keep lines non-crossing where possible

Professional Polish

  • Consistent stroke weights (1-3px)
  • Aligned text and elements
  • Balanced composition
  • High-resolution output (minimum 150 DPI)

Keep looking

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