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Profile constrains how far a scanned surface may depart from the nominal CAD. In ASME Y14.5 the tolerance zone is a band around the true profile, located by a datum reference frame. Voyager evaluates that band for one feature or for the full scanned part. Profile opens in one click, the same way Flatness and Cylindricity do. You no longer walk a separate datum-correlation wizard. The datums are picked in the workflow, on the scan and on the CAD, after the CAD has finished processing. Generating a part Profile against an uploaded CAD model

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What you need first

  • A feature set on the volume you want to measure.
  • A nominal .STEP file that has finished processing. Files that are still processing, or that failed, appear in the list and cannot be selected. See Nominal CAD Import.
  • Datums on the scan and on the CAD. Profile requires a primary datum. Secondary and tertiary are optional. See Datum Definition.
An Alignment is how you copy a Frame from one side to the other so you do not build it twice. Profile can still be run by picking the datums on each side yourself.

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Workflow

1

Select Profile

Choose Profile from the Toolbar, or right-click a plane or cylinder and choose Add profile control…. The right-click action is offered on planes and cylinders.
2

Select the scan and the CAD

Pick the volume to measure and the nominal CAD model. You can upload a STEP file from this list.
3

Choose the target

Choose Single feature and click the feature, or Full part to constrain the entire scanned surface. Switching target clears datums that were picked for the previous one.
4

Select the datums

Pick the Frame on the scan and the matching Frame on the CAD. Primary is required. A linked alignment fills the other side from datums you already copied.
5

Enter the tolerance and submit

Enter the Profile tolerance in millimeters and submit. The result is a deviation heatmap and a callout.

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Reading the result

The heatmap is the deviation from the nominal surface. In the deviation-view Range Map you can set the top of the scale above this part’s own registered maximum, so several Profile results share one color window. The Viewport follows the scale you set. See Range Map. Measured in names the Frame. Open freedoms lists motion the datums did not stop. When the Frame can sit in more than one place, Frame steps through those candidates.

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Editing after submission

  • Tolerance can be changed after the evaluation. The heatmap and the pass or fail state update without a new extraction.
  • Leader and label placement can be changed. The deviation does not change, only where the callout sits.