Here’s a brief overview of the process export gerber files from protel 99se:

Generating Gerber Files

1. Open your PCB project in Protel 99se.
2. Select Tools > CAM Wizard from the menu bar.

3. Follow these steps in the CAM Wizard:

• Click “Next” on the first screen.
• Select “Generate Gerber files” and click “Next”.
• Name your Gerber files as desired and click “Next”.
• For units, select “Inches” (default).
• Choose the appropriate format (Bittele supports the highest resolution, so 2.5 is recommended).
• Click “Next”.
• On the next screen, select all options under “Plot”.
• Ensure all options under “Mirror” are unselected to avoid producing upside-down board layers.
• Click “Next”.
• On the following screen, leave the default boxes checked and click “Next”.
• Select “Characters” and leave the rest of the options as their default values.
• Click “Next” three more times, then click “Finish”.

Generating Drill Files

1. Right-click in the workspace and select “Insert NC Drill…”.
2. In the pop-up menu:
   • Set units to “Inches” (default).
   • Change the format to 2.5.
   • Keep “Optimize change location commands” checked.
   • Check “Suppress trailing zeroes”.
   • Click “OK”.

Exporting Gerber and Drill Files

1. Right-click in the workspace and select “Generate CAM files”.
2. A “CAM for (file name)” folder will be created in your catalog.
3. Right-click on the created folder and choose “Export”.
4. Select the destination where you want to export your files.
5. Once completed, you will find your generated Gerber and drill files in the exported folder.

Important Notes

• When selecting the format (step 3.5 in Generating Gerber Files), choose based on your design requirements. 2.5 is recommended for highest resolution.
• Ensure that no options under “Mirror” are selected to avoid producing upside-down board layers.
• Double-check that all necessary layers are selected for plotting to ensure a complete set of Gerber files.