Overview
Definition
Board Outline Creation is the process of translating mechanical requirements into the physical PCB shape that will be used throughout the design lifecycle. The board outline defines PCB dimensions, board profile, mounting holes, cutouts, connector locations, mechanical keep-outs, and height restrictions. Without a correct board outline, the PCB may function electrically but fail mechanically.
Objective
Create an accurate PCB boundary that satisfies all enclosure, assembly, manufacturing, and mechanical requirements before placement begins.
Why it matters
Common failures caused by poor board outline definition: PCB does not fit enclosure, connector mismatch, mounting hole misalignment, mechanical interference, assembly difficulties, and repeated PCB revisions.
Inputs
- Mechanical Drawings
- DXF Files
- STEP Models
- Enclosure CAD
- Connector Location Data
- Mounting Requirements
- Height Restrictions
- Thermal Requirements
Outputs
- Approved Board Outline
- Mounting Hole Layout
- Keep-Out Definition
- Mechanical Constraint Report
- Board Profile Verification
Common mistakes
- Assuming dimensions
- Using outdated DXF files
- Missing connector alignment review
- Incorrect mounting hole locations
- Missing keep-out zones
- Ignoring enclosure tolerances
- Forgetting component height restrictions
Detailed Workflow
Detailed implementation workflow
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- Practical workflow
- Engineer checklist
- Standards
- Industry examples
- Engineer tips
- Common mistakes
Interactive Checklist
Trackable engineer checklist
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Standards
Industry standards reference
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Industry Examples
Industry-specific implementation
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- Automotive
- Industrial
- Medical
- Defense
- Aerospace
- Consumer
- Telecom
- ATE
Board Type Examples
Per board-type guidance
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- Rigid
- Flex
- Rigid-Flex
- RF
- High-Speed
- Metal Core
- HDI
Practical Design Considerations
Lessons learned from real projects
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- Lessons learned
- Real projects
- Case studies
- Design reviews
Tools & Resources
PCB Design Tool
Altium Designer
Board shape creation, mechanical layer management, and 3D clearance checks.
PCB Design Tool
Allegro PCB Designer
Mechanical outline import, board profile creation, and constraint-driven design.
PCB Design Tool
Siemens Xpedition
High-end board outline and mechanical integration tools.
PCB Design Tool
KiCad
Open-source board edge creation and DXF import.
Mechanical CAD
AutoCAD
DXF creation and mechanical drawing editing.
Mechanical CAD
SolidWorks
Enclosure design and STEP model generation.
Mechanical CAD
Fusion 360
Mechanical design and board-enclosure integration.
Mechanical CAD
DraftSight
2D mechanical drawing and DXF editing.
3D Viewer
STEP Viewer
Quick visualization of mechanical models and board alignment.
Step Tool
Board Outline Readiness Tool
Board Outline Readiness Tool
Verify mechanical inputs, mounting features, and keep-outs before outline freeze.
Knowledge Check
Optional self assessment — no pass/fail, no mandatory completion.
1. What is the primary purpose of board outline creation?
2. Which file is commonly used to import mechanical outlines?
3. Why are keep-out zones important?
4. What should be verified after DXF import?
5. When should board outline be finalized?
Completion
Mark Step 3 as complete
Finish the checklist or self-assess, then mark complete.