Current Help System: PC-DMIS Laser (View Core Help)

#### Cone Specific Parameters

Diameter: The value in this box defines the cone's diameter.

Length: The value in this box provides the length (height) of the cone's axis. The length parameter is only valid as nominal. No actual length measurement will be performed.

Inner/Outer: This parameter defines whether or not the cone is an inner cone (hole) or an outer cone (stud).

Important: It is NOT possible to measure a full inner cone hole with a laser. You can ONLY measure a half a cone, such as a conical channel cut into a block (see the example below).

The Overscan value on the Laser Scan Properties tab of the Probe Toolbox should use negative values unlike other Laser Auto Features. This limits measurement in the conical region along the cone axis.

Depth: This parameter controls location of the laser focal point in relation to the cone's outside diameter (outer cones) or the cone's center axis (inner cones). This allows you to control how the laser stripes fall on the cone's surface by specifying how far or close the laser is to the cone's surface. A depth of 0 will cause this feature to be calculated at the surface plane height, using data found at the lowest possible depth from the surface plane. A depth of any other value will cause it to be calculated at that depth.

The depth defaults to zero. This is the default value for a plane feature with no extruded edges. You should only change this to a different value if there are specific requirements from your part's drawing. Otherwise, PC-DMIS will unsuccessfully attempt to locate points at the specified depth, resulting in a feature calculation error from the feature extraction module.

Sample external Cone in the Graphics Display window showing the diameter (top black circle), the length (bottom black circle), the depth (blue circle) and the Overscan (yellow circle)