How to generate Gerber from Eagle

pcbway.com

Step 1: Using EAGLE: Board Layout

Generating Gerbers

When you've finalized your design, the last step before sending it off to the fab house is to generate gerber files. Gerber files are kind of a “universal language” for PCB designs. EAGLE is far from the only PCB CAD software out there, and its design files are nothing like those of Orcad or Altium. Fab houses can't possibly support every piece of software out there, so we send them the gerber files instead.

Gerber files – note the plurality – each describe single layers of the PCB. One gerber might describe the silkscreen, while another defines where the top copper is. In all, we'll generate seven gerber files to send to the fab house.

CAM Processor

Before we get too much further, you'll need to download another definition file: SparkFun's CAM file.

Then, load up the CAM processor by clicking the CAM icon –  – which will open up this window:

Please note: When it is the double layers silkscreen of your PCB, you need to add the bottom layer as well in the CAM Processor (20 Dimension,22 bPlace and 26 bNames).If there is any milling design in your brd file, please add extra outline layer and check the "20 Dimension" and "46 Milling".A new blog of generating Gerbers from Eagle has been updated, for more specific tutorial,click here!

From here, go to the File menu, then go Open > Job…. In the file browser that opens, select the sfe-gerb274x.camfile that you just downloaded. Now the CAM processor window should have a series of tabs: “Top Copper”, “Bottom Copper”, “Top Silkscreen”, etc. Each of these tabs define how to create one of the gerber files. Now all you have to do is click Process Job. If you haven't saved recently, it'll prompt you to.

The gerber generation process should be pretty quick. Once it's run its course, have a look in your project directory, which should have loads of new files in it. In addition to the board (BRD) and schematic (SCH) files, there should now be a .dri, .GBL, .GBO, .GBS, .GML, .gpi, .GTO, .GTP, .GTS, and a .TXT. Meet the Gerbers!

Gerber File

Extension

Bottom Copper

GBL

Bottom Silkscreen

GBO

Bottom Soldermask

GBS

Top Copper

GTL

Top Silkscreen

GTO

Top Soldermask

GTS

Drill File

TXT

Drill Station Info File

dri

Photoplotter Info File

gpi

Mill Layer

GML

Top Paste

GTP

 


   

Delivering the Gerbers

The process of sending gerber files varies by fab house. Most will ask you to send them a zipped folder of select files. Which gerber files? Check with your fab house again (e.g. PCBWay guidelines), but usually you want to send them GTL, GBL, GTS, GBS, GTO, GBO and the TXT files. The GTP file isn't necessary for the PCB fabrication, but (if your design had SMD parts) it can be used to create a stencil.

 

So zip those gerbers up. Play the waiting game. And get ready to assemble your very own PCB!

 


May 05,2015
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  • cool info. i did it. but somework I made mistake. overlap layer gerber top layer.becoz i forgot to deselect unused layer :D

    Reply
  • Useful article. Thanks!

    Reply
  • in the gerber silk screen file , PCB vendor says not able to find legend information. Could you kindly clarify where I can find legend information. Due to that we are not able to print legend on PCB.Thanks . R.Gunaseelan

    Reply
  • Heads up! The linked CAM processor job file does NOT include the names layers in the silkscreen. Just received my boards without pcb designators. Add the layers to the silkscreen top and bottom before processing...

    Reply
  • the audit sometimes reject my design. because no outline. example the rectangle 99x99mm 0,1mm width must be added. Cheer..

    Reply
  • the cam-job didn't have any usable layer selected (Eagle 8.1.0) so bad - I would like to test pcbway but I have to order elsewhere, where I can simply upload my *.brd file from eagle.

    PCBWay Support 2018-05-18 10:10:58 Reply

    Really sad to hear that. As for now, we have already had the function online to let customers upload the *brd file directly.

    Reply
  • Adding to my previous query, I am generating Gerber files through sfe-gerb274x.camfile . Thanks , R.Gunaseelan

    Reply
  • How do I create acceptable Gerber files for pcbway using Eagle 8.7.0? All boards I have submitted using the 8.7.0 cam processor have been rejected, when audited

    PCBWay Support 2018-05-18 10:08:46 Reply

    There is an update of version 7.3. And it's more detailed and clear to help us generate Gerber. Besides, we will update the introduction following the version update. https://www.pcbway.com/blog/Engineering_Technical/Generate_Gerber_files_in_Eagle.html

    PCBWay Support 2018-05-18 10:11:09 Reply

    As for now, we have already had the function online to let customers upload the *brd file directly.

    Reply
  • Hi, all instructions are for older eagle version, there aren't any instruction for new version 9.x thank you pihome.eu

    PCBWay Support 2018-05-18 10:08:38 Reply

    There is an update of version 7.3. And it's more detailed and clear to help us generate Gerber. Besides, we will update the introduction following the version update. https://www.pcbway.com/blog/Engineering_Technical/Generate_Gerber_files_in_Eagle.html

    PCBWay Support 2018-05-18 10:11:14 Reply

    As for now, we have already had the function online to let customers upload the *brd file directly.

    P**ome 2018-06-29 19:02:25 Reply

    re: online function to convert brd files is really great tool and i accidentally discovered it and yes it works great.

    Reply

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