Exploring Advanced Section Tools in Navisworks: A Step-by-Step Guide

Welcome back to our comprehensive Navisworks video series. In this installment, we'll explore advanced section tools that enable sophisticated model analysis and visualization. We'll be working with the MetagateYourName.nwd file from our previous session—your workspace should mirror what you see on my screen, providing the foundation for today's advanced techniques.

Begin by opening your Lesson 1 MetagateYourName.nwd file, which will restore your last saved view. In my workflow, I preserved this file while examining Section 1, so it automatically opens to that viewpoint. Our previous session covered creating single section planes and saving them as distinct viewpoints—a process we repeated three times to establish our baseline sections. Today, we're advancing to multi-plane workflows that unlock far more powerful visualization capabilities.

Let's start with Section 3 as our foundation. Create a copy of this section, which generates a new viewpoint labeled "Section 3-1." This copying function is essential for preserving your original work while experimenting with new configurations—a best practice in professional BIM workflows.

Rename this duplicate to "Section A" for clarity. Notice how Navisworks intelligently positions the copied viewpoint directly above its source. You can reorganize your viewpoint hierarchy by selecting and dragging Section A to the bottom of your list, creating logical separation from the original sections. This organizational approach becomes crucial in complex projects with dozens of viewpoints.

Section A inherits all properties from Section 3, including enabled section tools, but here's a critical concept: each viewpoint maintains completely independent plane systems. Section 3's Plane 1, Section 2's Plane 1, and Section 1's Plane 1 are entirely separate entities. Understanding this independence is fundamental to advanced section work—we're now working with Section A's Plane 1 and will be adding its Plane 2 for sophisticated multi-plane analysis.

Activate the transform move tool to visualize your section plane, then enable Plane 2. While Plane 1 remains the current active plane, switch your focus to Plane 2 for precise control. Set the alignment to "Bottom"—this orientation is crucial for the effect we're creating. Now grab the Z-axis gizmo and drag downward. Watch as your model materializes in a controlled revelation that demonstrates the power of dual-plane sectioning.

The mechanics here reveal sophisticated spatial control: Plane 1 maintains its original position, cutting everything above its location, while Plane 2 cuts everything below its position. This creates a precise "slice" of your building—invaluable for detailed floor-by-floor analysis or focusing on specific building systems. Position Plane 2 just below the third floor while ensuring Plane 1 holds its established location. This technique is particularly powerful for MEP coordination and architectural detailing.

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Currently, these planes operate independently—moving one doesn't affect the other. However, professional workflows often require maintaining consistent spacing between planes. The "Link Section Planes" feature addresses this need perfectly. When activated (indicated by the blue toggle state), this tool synchronizes plane movement, maintaining your carefully established slice thickness regardless of which plane you manipulate.

With linking enabled, select either plane as current and drag vertically. Notice how the alternate plane follows automatically, preserving your slice dimensions. This synchronized movement is essential for exploring different building levels while maintaining consistent analysis depth—a technique widely used in clash detection and systems coordination.

Let's expand our analysis by introducing a vertical section plane. This multi-directional approach provides comprehensive model interrogation capabilities that separate professional-grade workflows from basic viewing.

Activate a new section plane using the lightbulb icon, make it current, then position it strategically within your model. If the default orientation doesn't suit your analysis needs, modify it using the orientation controls. The "Back" setting often works well for standard building orientations, but the "Align to Surface" feature offers superior flexibility for complex geometries.

The align-to-surface function excels with non-orthogonal elements—try selecting this window plane to demonstrate precise alignment capabilities. While this technique shines with angled elements like signage or complex facades, orthogonal buildings typically benefit from ViewCube-based orientations for consistency and ease of communication.

With linked planes active, using the vertical gizmo axis moves all section planes simultaneously, maintaining your three-dimensional analysis window. This coordinated movement enables rapid exploration while preserving critical spatial relationships. You can create additional planes to form a complete analytical box, aligning each to appropriate faces (Front, Back, etc.) for comprehensive three-dimensional investigation.

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For independent plane adjustment, simply toggle off the linking function, select your target plane as current, and modify its position individually. This flexibility allows fine-tuning of specific planes while maintaining overall coordination. Reactivate linking to restore synchronized control across all planes—this toggle workflow becomes second nature in professional practice.

When custom plane setup feels excessive for your immediate needs, Box Mode provides an elegant shortcut. This preset configuration creates six coordinated planes forming a manipulable box that delivers immediate results for standard sectioning needs. While less customizable than individual plane control, Box Mode excels for quick exploration and client presentations where setup time matters more than precise control.

The distinction between these approaches reflects different professional scenarios: custom planes for detailed analysis and documentation, Box Mode for rapid exploration and stakeholder communication. Both techniques will prove invaluable as your projects increase in complexity.

This concludes our exploration of advanced section tools, but these capabilities form the foundation for even more sophisticated techniques ahead. In upcoming videos, we'll examine animation workflows that bring these static sections to life, creating compelling presentations and detailed construction sequences. Master these fundamentals, and you'll find yourself equipped for the most demanding visualization challenges. Thank you for joining this session—I look forward to seeing you advance these skills in our next installment.