Creating a 2D Radius Gage

To create a 2D Radius Gage with a Cross Section:

  1. Create the cross section.

  2. Select the Cross Section Slide Show button () from the Pointcloud toolbar (View | Toolbars | Pointcloud) to view the cross section in a 2D view.

  3. Hold the Shift key down and point to the desired radius. A display widget appears. The display widget shows the nominal, measured, and deviation values for the radius.

2D Radius Gage display widget showing the nominal, measured and deviation values for the radius

  1. Click to select the radius. A widget dialog box appears.

A - 2D Radius Gage ID

B - Radius nominal value

C - Algorithm used to calculate the radius

D - Cancel button

E - Create button

F - Use the handle to move the widget dialog box

G - Radius deviation value

H - Radius measured value

 

2D Radius Gage widget dialog box

From the widget dialog box, you can do the following:

  1. When you create the 2D Radius Gage, PC-DMIS creates its associated command in the Edit window. You can create additional radius gages as needed.

Once you create a 2D Radius Gage, you can use it in Location and Distance Dimensions, and Constructions. For Location Dimension, Form is not supported.

To change the radius settings:

How the 2D Radius Gage is Calculated

Calculating the Nominal 2D Radius

Starting from the initial picked measured point, the nominal radius is found on the nearest black polyline. The software calculates the nominal (theoretical) radius for a least square best fit circle, using all the nominal points that are within 0.005 mm standard deviation.

Calculating the measured 2D Radius

The software calculates a least square best fit circle, using the actual points on the yellow polyline that are associated with the nominal points.

Starting from the initial picked nominal point, the software finds the radius on the nearest black polyline. The software calculates the nominal (theoretical) radius for a least square best fit circle, using all the nominal points that are within 0.005 mm standard deviation.

Starting from the initial picked measured point, the software calculates the radius for a least square best fit circle. The software uses all the measured points within 0.050 mm standard deviation and a search distance of 0.25 mm to find any additional segments that belong to the radius.

More:

2D Radius Gage Overview

2D Radius Gage Dialog Box