KB: Draftsman Board Section View Cut Extents cannot be adjusted

Altium Designer Altium Designer
When working with a Board Section View in an Altium Designer Draftsman document, the cutting line may appear fixed, preventing adjustment of the section extents by dragging the cutting line nodes. This occurs even though the documentation and demonstration video indicate that partial board sectioning is supported. Restarting Altium Designer or reopening the Draftsman document does not resolve the issue. The behavior is caused by Draftsman document-level grid and snapping settings, which directly affect graphical editing of views. Enabling Snap to Grid in the Draftsman Document Properties panel restores normal interaction, allowing the cutting line nodes to be selected and dragged to control the section cut extents as expected.

Solution Details

Cutting line nodes cannot be dragged

In a Draftsman document, a placed Board Section View shows its cutting line, but the end nodes cannot be dragged. As a result, the section view always represents a full cut through the entire board instead of a limited region. This happens even though the cutting line nodes are visible and the view was created successfully.

Document snapping affects graphical editing

Graphical editing of Draftsman views depends on the document’s grid and snapping configuration. If Snap to Grid is disabled, interactive editing operations—such as dragging Board Section View cutting line nodes—may not function correctly. In addition, the Board Section View must be selected in the design space for its editing nodes to become active.

Enable snapping at the document level

  • Enable Snap to Grid in the Draftsman document properties to allow cutting line nodes to be dragged.

This setting applies at the Draftsman document level, not per individual view, which explains why reopening the file or restarting Altium Designer alone does not resolve the issue.

Enable Snap to Grid and adjust cut

  1. Open the Draftsman document containing the Board Section View.
  2. Ensure no object is selected so the Draftsman Document Properties panel is shown.
  3. In the properties panel, enable Snap to Grid.
  4. Select the Board Section View in the design space.
  5. Click, hold, and drag one of the cutting line end nodes to adjust the section cut extents.

Altium Designer PCB Draftsman document showing a board section cutting line with a visible node, while the Properties panel displays Snapping options with Snap to Grid enabled, illustrating how snapping affects line editing.

References

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