Rhino 3D Tip: Set Construction Plane to Current View

Speed up drafting and edits by setting the Construction Plane (CPlane) directly from your current view.

Why it helps:

• Aligns Ortho, Gumball, and snaps to the exact camera direction you’re working in.
• Makes sketching on oblique parts feel “planar” and predictable.
• Reduces auxiliary geometry and view switching during quick edits.

How to set the CPlane from the current view:

• Command line: type CPlane, then choose View (Windows/macOS). Shortcut macro:

  ! _CPlane _View

• Viewport menu: right-click a viewport title > Set CPlane > To View.
• Create an alias (e.g., “CV”) that runs the macro above for one-tap access.

Keep views and planes coordinated:

• Use Plan after changing the CPlane to get a clean, orthographic “plan” look of your new working plane:

  ! _Plan _CPlane

• If you want all standard viewports to share the same CPlane changes, enable Universal Construction Planes:
  Options > Modeling Aids > Use universal construction planes.

Modeling aids that pair perfectly with a view-based CPlane:

• Ortho: constrains moves/draws along the new CPlane axes.
• Project Osnaps: forces snaps to project to the active CPlane. Toggle with:

  ! _ProjectOsnaps _Toggle

• Gumball: set Gumball to align to CPlane (right-click the Gumball widget > Align to CPlane) for predictable manipulations.
• SmartTrack: capture temporary alignment points that now reference your new plane.

Save and reuse your planes:

• Open the Named CPlanes panel to Save, Restore, and Organize task-specific planes.
• Or use:

  ! _NamedCPlane

• Pro tip: Name planes by part/face (e.g., “Bracket_TopChamfer_CPL”) to speed retrieval across sessions.

Fast reset and variations:

• Return to world:

  ! _CPlane _World _Top

• Align to a face or surface when needed:

  ! _CPlane _Object

• Use 3Point for custom orientations anchored to known edges:

  ! _CPlane _3Point

Everyday use cases:

• Sketching 2D details on angled panels without creating construction geometry.
• Quick edits with Gumball on tilted features in assemblies.
• Precise Make2D pre-alignment: set CPlane to view, then Plan, then draft.

Troubleshooting and best practices:

• If snaps feel “off,” confirm Project Osnaps and Ortho states, and verify Gumball alignment.
• Remember that annotation orientation follows the active CPlane; set it before dimensioning.
• Store CPlanes in your template for repeat work across similar products.

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