How to Measure Parts and Assemblies

How to Measure Parts and Assemblies

How to Measure Parts and Assemblies

The CAD ROOMS Viewer includes a powerful Measurement tool that allows you to inspect dimensions, angles, and areas directly on 3D models and assemblies—without leaving the browser.
Measurements are interactive, precise, and designed to work seamlessly with visual styles and section views, making them ideal for design reviews, verification, and collaboration.
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Open the Measurement Tool

 
  1. Open a part or assembly in the CAD ROOMS Viewer.
  1. Click the Measurement icon in the left toolbar.
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  1. Select the measurement type from the dropdown menu.
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All measurements appear directly on the model and are listed in the Measurement panel.

Measurement Modes

You can switch between different measurement modes using the dropdown at the top of the Measurement panel.

Distance Measurements

Use distance modes to inspect spacing, offsets, and clearances:
  • Point-to-Point Distance
      • Measure straight-line distance between two points, edges, or vertices
      Typical uses: hole spacing, feature offsets
  • Polyline Distance
      • Measure a path made of multiple connected segments
      Typical uses: complex edges, routing paths, contour lengths
  • Face-to-Face Distance
      • Measure distance between two faces or surfaces
      Typical uses: wall thickness, clearance checks

Angle and Area Measurements

  • Angle Between Lines
      • Measure angular relationships between edges or reference lines
      Typical uses: chamfers, draft angles
  • Polygon Area
      • Measure the area of a closed region defined by multiple points
      Typical uses: cross-sectional area, surface estimation

Managing Multiple Measurements

All measurements you create are listed in the All Measurements section of the panel.
From here, you can:
  • View multiple measurements at once
  • Remove individual measurements
  • Clear all measurements when finished
Measurements remain visible on the model while you continue working.

When to Use Measurements

The Measurement tool is commonly used for:
  • Design reviews
  • Clearance and fit checks
  • Verifying imported CAD data
  • Collaborating with teammates and external reviewers
All measurements are non-destructive and do not modify the original CAD data.

Adjust Units and Precision

Each measurement allows you to customize how results are displayed:
  • Change units: mm, cm, m, in, ft
  • Adjust precision: Increase or decrease decimal accuracy
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This is especially useful when switching between design-level inspection and manufacturing-level validation.

Repositioning the Measurement Panel

The Measurement panel is fully draggable and can be moved anywhere on the screen.
This allows you to:
  • Prevent the panel from blocking important geometry
  • Keep measurements visible while inspecting different areas
  • Continue measuring while rotating or zooming the model
Simply drag the panel header to reposition it.
Measurements remain active and visible regardless of where the panel is placed.

Using Measurement with Other Viewer Tools

Measurements work seamlessly with other viewer tools:
  • Visual Styles (Wireframe, X-Ray, Hidden Line, etc.) help reveal internal geometry while measuring
  • Section View allows you to measure internal features and cross-sections with precision
This combination is ideal for inspecting complex assemblies and internal structures.

Why Use Measurements in CAD Viewer

Using measurements directly in the CAD Viewer allows teams to:
  • Verify dimensions without exporting files
  • Communicate requirements clearly
  • Reduce errors during reviews
  • Speed up design validation
Measurements keep dimensional discussions precise, contextual, and easy to share.

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