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How-To-Document

How-To Document
Procedure Description Generating extended Gerber- and Excellon data from OrCAD 9.00 for LPKF CircuitCAM 3.x and 4.x Requirements OrCAD Software CircuitCAM Software Completed PCB in OrCAD with all necessary default layers. Problem / Procedure Solution OrCAD Export: Please follow instructions below: 1. Start the OrCAD PCB layout program 2. Open the completed PCB layout 3. Open the Gerber Settings Dialog Box from the Options Menu:

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How-To-Document 4. Set all parameters as listed in the graphic below and save the settings by clicking the button Save Gerber Preferences.

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Open the Post Process Settings Dialog Box from the Options Menu:

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How-To-Document Below listing appears on the screen:

This list shows each single layer, which is enabled for export by the Post Processing Batch Job. In addition the data format and the file name to be created are shown. By clicking on the first column of a line, the parameters (or entries) can be modified. 5. Double-Click on the first line, and choose ‘Extended Gerber’ in the dialog box that shows up. This will set all the outputs to Gerber274X output, with embedded apertures.

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How-To-Document 7. Click on OK, and you should now have a setup looking like the image below. Click with the right mouse button into the still open listing, and select Run Batch from the Pop Up menu. Confirm all messages about generation of several files.

By running the batch job, all files necessary to produce the PCB prototype with the LPKF circuit board plotter, will be created. These are the files (name stands for the name of the file, which may vary from PCB to PCB): name.TOP extended Gerber file of the component side name.BOT extended Gerber file of the solder side THRUHOLE.TAP Excellon drill file All other files generated are not needed. The export from OrCAD has been done. The files will now be used to continue with LPKF CircuitCAM. CircuitCAM Import: 1. Start CircuitCAM. 2. Choose the template Default.CAT from the File New menu 3. Click the Import icon (Front-To-End tool bar) or choose Import from the File menu 4. Select the above-mentioned files from the working directory and click the OK button. Import the files and place them into the appropriate layers. If you would like to Automatically Import your files, refer to the Import Assignment How-to document. All selected files will be imported and appear graphically on the screen. For all the following steps use the various exercises of the CircuitCAM manual.

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How-To-Document Tip and Tricks: You should define the PCB outline in your design as a continuous line around the whole board (Obstacle Type Free Track). This should be done on the topside and the bottom side of you PCB but at least on one of them. This board frame may be used as limitation for removing the residual copper of your PCB (Rubout). References OrCAD Manual CircuitCAM Manual Author Craig Kniskern

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