Performing CAM Compare

Comparing an ODB++ product model with CAM files consists of reading in the reference data, matching layers, registering layers, and comparing.

Note:

In many cases, CAM Compare stages are performed automatically.

Tip

You can click the Show Next Result tool at any time to perform the remaining stages of the comparison process.

Prerequisites

You have extracted reference CAM files from the CAD tool as described in “Exporting CAM files from the CAD Tool”.

Open CAM Compare as appropriate for the application you are running.
The comparison pane of the CAM Compare window lists the layers of the current product model in the ODB++ Layer List column.

Tip
If you have previously imported data, and you want to read in different data instead, click the Clear CAM Layers tool .
Import CAM files of the design:
1. Click the Import reference CAM files tool .
  The Select one or more input files dialog box opens.
2. Select the CAM files and click Open.
  The CAM files are listed in the CAM Data column in the order in which they were read in.
  
  The Import column indicates the status.
Match each CAM file with the corresponding layer in the ODB++ product model.
1. Click the Match layers tool .
  CAM Compare matches the CAM layers to the CAD layers by their geometry properties and layer name. If a CAM layer name is the same as a CAD layer name, those layers are set as a match, regardless of how well the layer geometry matches. The layer name suffix in the CAM data is ignored.
2. Check that the CAM layers have been re-arranged to match the layers of the product model.
3. If necessary, drag layers into the correct position.
Line up the information on one or more layers before comparing.
1. Select the layers to be registered.
2. Click the Register layers tool .
Click the Compare tool to compare the reference layers to the ODB++ product model layers.

You can review the results of CAM Compare as described in “Examining the Comparison Results”.