How to Guide Exporting gerbers from Geda PCB

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There are several schematics that were made using a program called PCB. These files have a .pcb extension and you can't open them with Eagle. To export them for manufacture, here's what you do:

1. Go to file->export and click gerbers. Check the "Export all layers" box.

2. Now that you have a bunch of .gbr files, we're going to generate the outline. To do that, use the python script in /electronics/antenna/pcb_outline. Here's the usage:

python pcb_outline input.pcb output.oln

3. Once you have the oln file, go through each gbr file in gerbv and make sure you know what it is. In the case of the antennas, there should only be a top and bottom, so you'll have to delete a bunch of .gbr files that we don't use.

4. Change the extension of the .gbr file that is the top layer to .top

5. Change the extension of the .gbr file that is the bottom layer to .bot

6. Change the extension of the .cnc file to .nc

So (in the case of the antenna design) you should now have 4 files. With these extensions, you can upload them to advanced circuits' website and it will automatically recognize them. You can also still view them in gerbv, which you should do before you send them off to make sure that you didn't delete the wrong layer by accident.

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