How to export Altium PCB to gerber files
Design Rule Setup
Our Kind customer has provided loadable DRC rule and Stackup files for our multilayer services.
Note, these files are not exhaustively validated or guaranteed by JLCPCB. Use your judgment and always verify your designs meet our capabilities to prevent design defects that could affect your boards. If you have corrections or find errors, please email support.
Generating Gerber file
1. Open your .PCB design files on Altium designer software
Select File -> Fabrication Outputs -> Gerber Files.
2. General Setting
In the General Setting set the precision to 2:5 (0.01 mill resolution)
3. Layers Setting
Please make sure you have the clear outline in mechanical layer.
If your board are 2-layer, there will be no inner layer(G1,G2,G3....)
Include the layers that you want to export by marking these, lect “Used On” in Plot Layers, Select “All Off” in Mirror Layers.
4. Aperture Setting
Be sure to mark “Embedded apertures (RS274X)”
5. Advanced Setting
When you make sure all configurations are fine. Please click the OK to generate the gerber files.
Gerber Files are automatically loaded in the Altium cam viewer. This tool allows you to verify that all layers have been generated correctly and that they are all in positive mode.
Generating NC Drill File
1. Generate the Drilling layer in Excellon format.
File -> Fabrication Outputs -> NC Drill Files
2. Set the precision to 2:4. Then click OK.
Then you get all files. Please put them into a single zip/rar file.
Altium has published a guide on producing those files here:
If everything looks OK, upload the zip file to JLCPCB order page.