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This guide will walk you through how to create gerber files in Altium. Gerber files consist of all the different layers in your PCB, and are sent to PCB manufacturers so that they can actually build your circuit board.

Step 1

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Click on Gerber Files to open the gerber file wizard.

Step 2

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Make your settings match the settings in the image and then move to the next tab.

Step 3

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Select the layers you used in your PCB file. You need to select the layers you used, the solder mask for the layers you used, and the silkscreen for the layers you used. Once you have done that, move to the next tab.
Mechanical layers should be included, we should standardize them. It's usually good to have a layer dedicated for board outline which you apply to all plots. I've had gerbers denied in the past for not having that. Other layers that are nice are a keep out layer if necessary and a layer for 3d models (It would be nice if we could have models for the entire board, although it's not necessary for us)

Step 4

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Make your settings match the settings in the image and then move to the next tab.

Step 5

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Make your settings match the settings in the image and then move to the next tab.

Step 6

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Make your settings match the settings in the image. You will need to use the correct Film Size values for your board. The X and Y coordinates is the upper most right of your PCB. The boarder size is the thickness of the boarder you places surrounding your PCB in the top layer. Once you have finished, click OK. You have now successfully created your gerber files!
There's more stuff to do though, so don't stop here.

Step 7

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Click on NC Drill Files to open the drill file wizard.

Step 8

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Make your settings match the settings in the image and then click OK

Step 9

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Click OK

Step 10

Navigate into the project output folder, which is created in the same directory where you have saved the project file. You will need to select the gerber files and the NC Drill file you've made according to [Manufacturer Name Here]. You may have to zip these files before sending them to the manufacturer. You should name the archive the same name as the PCB.
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Remarks

In general, all PCBs made for Midnight Sun should have the following silkscreened on them:
Project Title
Name of person who made the PCB
Date that it was made
Revision number
The below image is an example of how it should look:
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Please refer to this guide made by Elecrow to generate your Gerber files. This guide will be updated in the future to contain things that specifically apply to our boards.