#### Defining Scan Settings

The Scan Setting dialog box appears when you click the Scan Setting... button in the Measure Gear dialog box. For more information on the Measure Gear dialog box, see "CMM: Gear Measurement Setup".

Scan Setting dialog box

Profile Area

Point Density: (This option appears if you cleared the Use point number to define scan when probe type is TTP check box on the Gear Options tab.) Type the number of hits to take per millimeter of measurement during a profile scan. The values are given in terms of pts/mm (points per millimeter), irrespective of part units.

Points Number: (This option appears if you selected the Use point number to define scan when probe type is TTP check box on the Gear Options tab.) Use this box to enter the total number of points to probe when performing a profile and/or helix/lead scan.

Scan Speed: Type the speed at which the CMM will scan profiler. The value you enter is the percentage of the machine’s defined top speed. This is used only for an Analog Scan type.

Helix/Lead Area

Point Density: Type the number of hits to take per millimeter of measurement during a helix/lead scan. The values are given in terms of pts/mm (points per millimeter), irrespective of part units.

Scan Speed: Type the speed at which the CMM will scan the helix/lead. The value you enter is the percentage of the machine’s defined top speed. This is used only for an Analog Scan type.

Boundary Area

Boundary Type: Refer to the documentation for "Boundary Type area" in the Core PC-DMIS documentation for descriptions. Select the boundary type from the list:

- Plane

- Sphere

- Cylinder

- Cone

- OldStyle

Crossing Number: Determines how many times a scan crosses the selected boundary type before stopping the scan. See the "Boundary Type area" topic of the Core PC-DMIS documentation for more information.

Radius or Angle: This value determines the radius for the Sphere or Cylinder boundary type, and the cone apex angle for the Cone boundary type.

Execution Mode: Select the appropriate mode:

- Normal: (Available only for the Touch Trigger mode.) Gear will use discrete touch points and "stitch" the scan feature from point to point.

- Defined: (Available only for the Analog Scan mode.) Gear will calculate all nominal scan points according to the gear parameters and insert them into the scan command. When executing the scan, PC-DMIS will pass through every point.

- Relearn: (Available only for the Analog Scan mode.) Gear will also calculate the nominal scan points. However, when executing the scan, PC-DMIS will recalculate all scan points according to the start point, end point, and scan direction. All learned measured data will replace the existing measured data.