DraftAngleAnalysis

Toolbar Menu

Surface Analysis

Analyze

Surface >

Draft Angle Analysis

The DraftAngleAnalysis command visually evaluates surface draft-angle using false-color analysis.

Draft angle is often used to design injection-molded parts that must eject from molds.

Input

Steps

  1. Select objects.
  2. In the Draft Angle dialog box, set the angle for the color display.
  3. Set the pulling direction.
  4. Adjust the density of the mesh if the level of detail is not fine enough.

Draft Angle Analysis options

Upper value (Blue)

A draft angle above the upper value displays blue. The range between the upper value and 0 displays a blue-green gradient.

Lower value (Red)

A draft angle below the lower value displays red. The range between 0 and the lower value displays a green-red gradient.

Set direction by

Select an option that defines the pulling direction.

World Z

Uses the +Z of the world axes.

 

CPlane Z

Uses the +Z of the CPlane axes in the selected viewport.

View based

Uses the inverted view direction (target towards camera) of the selected viewport.

Two points

Uses a custom direction defined by picking two points.

Curve or edge

Uses the tangent direction at the start point of the selected curve or edge.

Show edges and isocurves

Displays edges or isocurves on the analyzed objects.

Add max. draft curve

Creates a curve along the line where the draft angle is equal to the upper value.

Add mid draft curve

Creates a curve along the line where the draft angle is 0.

Add min. draft curve

Creates a curve along the line where the draft angle is equal to the lower value.

Create Draft Curves

Click to create curves based on the state of the draft curve checkboxes above.

Adjust Mesh

Open Polygon Mesh Options to change analysis mesh density. Increasing mesh density improves the analyzing accuracy.

Add Objects

Select more objects to analyze.

Remove Objects

Remove selected objects from the analysis.

DraftAngleAnalysisOff

Toolbar Menu

Surface Analysis

Not on menus.

Close the dialog box.

The DraftAngleAnalysisOff command turns off draft angle analysis.

DraftAnglePoint

Toolbar Menu

Not on toolbars.

Not on menus.

The DraftAnglePoint command places a point object at a surface's draft angle break location.

Draft angle is often used to design injection-molded parts that must eject from molds.

Steps

Tip

Command-line options

Angle

The angle in world coordinates of a line tangent to the surface at the draft angle point.

Wikipedia: Tangent

PullDirection

The direction of the part ejection in world coordinates.

Edge

Restricts the point placement to an edge.

See also

Analyze objects

 

 

 

Rhinoceros 7 © 2010-2021 Robert McNeel & Associates. 20-Oct-2021