GD & T

You can measure shape tolerance ( Flatness, Straightness, Circularity, Cylindricity) and position tolerance ( Parallelism, Perpendicularity).

Note

• Support directly clicking on the model to create new features, feature pairs, and datums for inspection.
• After creating GD & T dimension objects, you can modify the Compensation Value in the right-side properties panel; the measurements and deviation values will be updated accordingly.

Shape Tolerance

1. Select Flatness / Straightness / Circularity / Cylindricity in the drop-down list to open the corresponding window.

   Flatness Straightness Circularity Cylindricity

   Flatness inspection is used to control the deviation of features from a perfect plane.

   Feature Types Available for Measurement
   Plane

   Straightness inspection is used to control the deviation of features from a straight line.

   Feature Types Available for Measurement
   Line, Cylinder, Cone

   Circularity inspection is used to control the deviation of features from a perfect circle.

   Feature Types Available for Measurement
   Circle, Cylinder, Cone

   Cylindricity inspection is used to control the deviation of features from a perfect cylinder.

   Feature Types Available for Measurement
   Cylinder

2. Select the feature to be measured, and set the tolerance (0 ~ 100).

3. Click Confirm, the software will automatically calculate and display annotation labels in the 3D scene: Green indicates that the deviation is within the tolerance range, while red indicates that the deviation is outside the tolerance range.
4. The dimension object will be displayed in the dimension module in the left-side tree view.

Position Tolerance

1. Select Parallelism / Perpendicularity in the drop-down list to open the corresponding window.

   Parallelism Perpendicularity

   Parallelism inspection is used to control the directional deviation of features relative to a specific datum.

   Feature Types Available for Measurement	Datum Feature Types
   Line, Cylinder, Cone, Plane, Circle, Plate	Line, Plane, Circle, Cylinder, Cone, Slot, Regular Polygon, Rectangle, Plate

   Perpendicularity inspection is used to control the deviation of features from a 90° angle relative to a specific datum.

   Feature Types Available for Measurement	Datum Feature Types
   Line, Cylinder, Cone, Plane, Circle, Plate	Line, Plane, Circle, Cylinder, Cone, Slot, Regular Polygon, Rectangle, Plate

2. For measuring Parallelism and Perpendicularity, select the feature to be measured and the datum, and set the tolerance (0 ~ 100).

3. Click Confirm, the software will automatically calculate and display annotation labels in the 3D scene: Green indicates that the deviation is within the tolerance range, while red indicates that the deviation is outside the tolerance range.

4. The dimension object will be displayed in the dimension module in the left-side tree view.