How To Open Pcb Gerber File

1. Altium Gerber Files

RS-274-X Gerber file format is a defacto data sharing standard for PCB manufacturing. This is basically a printer or plotter language which is used for PCB CAM (Computer Aided Manufacturing) data generation. Almost everyone who uses Altium Designer software for PCB design, either hobbyist or commercial designer, may have used this feature. It is actually a 2D ASCII file format.

How to generate the gerber file from Circuit Maker？ 1. Open the PCB file in Circuit Maker. Select Output→Gerber. General Setting. Select Units to Inches and format to 2:5. Select the layer you need to export on the gerber file. Apertures Setting. Select 'Embedded apertures (RS274X)' 5. Advanced Setting. A Gerber File is a file format used by printed circuit board manufacturing machines to layout electrical connections such as traces, vias, and pads (the component footprints on the PCB). In addition, the file contains information for drilling, and milling the completed circuit board. Only the PCB board layout file with the extension.brd is not enough to manufacture the PCBs. The PCBs manufacturing companies need the Gerber Files. The Gerber format is an open 2D binary vector image file format. It is the standard file used by printed circuit board (PCB) industry software to describe the printed circuit board images: copper. Right-click a file with the extension whose association you want to change, and then click Open With. In the Open Withdialog box, click the program whith which you want the file to open, or click Browseto locate the program that you want. Select the Always use the selected programto open this kind of file check box. If you are concerned about this, once you have viewed them, you can remove your Gerbers from the server. There are lot more cool options, just upload your Gerber file and check them out. So with this launching of new Gerber viewer tool, EasyEDA becomes the one stop solution from drawing the circuits to taking down them on PCB for professional.

Gerber file format is evolved from applications where it is used to re-create images or graphics i.e., printers and plotters industry. In the same way it is used in electronics hardware industry to print PCB tracks, vias, pads, text, holes, clearances and all information which is contained in a *.PcbDoc design file. The Altium Designer software tool has a feature to create and gerbtool option to verify data as well.

Like other softwares outputs the Altium Designer gerber file can be divided into four subparts:

• Configuration Parameters
• Aperture Definitions
• Drawing Commands
• X/Y Coordinates

Each file extension denotes a specific layer such as:

Top Layer => *.gtl

Bottom Layer => *.gbl

Express Pcb Gerber Files

Keepout Layer => *.gko

TopOverlay Layer => *.gto

BottomOverlay Layer => *.gbo etc.

2. Generating Gerbers in Altium Designer

Add layer stackup to any of the mechanical or other suitable layer.

Add other information like manufacturing notes, dimensions, cutouts etc., before generating gerber files.

In Altium Designer it is very easy to setup Gerber Files creation setup. It is done by two ways:

Generate through File>Fabrication Outputs> Gerber Files

Software open pcb file. It opens Gerber Setup dialogue box.

In Gerber setup dialogue box Set file producing unit system.

In layers pane add layers to be re-produced in gerber format.

In drill drawing pane click plot all used layer pairs on both of the boxes.

Set apertures box.

Set advanced parameters in advanced pane or otherwise keep default settings.

Click ok , it generates the gerber outputs in the project folder.

On same method NC drill files are created i.e., File>Fabrication Outputs> NC Drill Files and then adopt the same steps as above.

Create Gerber Files

Or in other way it can be generated by following steps:

Output Job File to project > Fabrication Outputs> Gerber Files and then set path for files.

Double click 'Gerber Files' it will open Gerber setup. Use the same steps as above and click ok. Best torrent program 2020.

Enable output generate option and set target folder location.

Clock Run or double click over generates content. The gerber file outputs will be generated.

Figure 1: Sample PCB Design file

In figure 1 different layers names are shown in their respective layer. The same layers can be viewed in the final view Figure 5 as Gerber output generated.

Figure 2: Gerbers Settings Dialogue Box

Figure 3: Gerber Setup Dialogue Box opens

Figure 4: Gerber Files generated and viewed in CAMTastic Bottom Layer view

Figure 5: CamTastic complete PCB view

3. What is Needed by Manufacturer

In a gerber file following layers and information should be added:

1. 1- Enable all signal layers which have been used for routing in PCB design or those which have electrical signals routing should be enabled to re-produce in gerber format.
2. 2- Enable all plane layers which are solid copper and distribute power to the circuit on PCB. These are printed as negative image of layer.
3. 3- Enable Keepout layer, it is usually electrical boundary of the board. The keepout can also be asked to manufacturer for cutting boundary.
4. 4- Enable required mechanical layers in gerber setup. A mechanical layer does not have any electrical information like in signal layer or plane layers. However, they can have some information about mechanical parameter like PCB cutting or, 3D PCB footprints information, assembly and fixing in enclosures etc.
5. 5- Enable Top Overlay and Bottom Overlays which have information of components designators and PCB name, number, nomenclature debug information and test signal details etc.
6. 6- Dimensional Information: PCB Dimensions information should be added on top overlay or mechanical or keepout layer of PCB design file before generating gerber files.
7. 7- Layer PCB stackup: Before generating gerber files add layer stackup information in any enabled mechanical layers so that manufacturer can use information about PCB material such as base material thickness, pre-preg thickness type etc.
8. 8- Preferably produce time and date stamped Gerber files so that they would be back traced for any query.
9. 9- Recheck and verify the file types using any gerber viewer software tool.
10. 10-If found accurate and forward to the manufacturer.

Figure 6: Gerber files enable and disable and extensions

Figure 6 shows the gerber files produced by Altium Designer software, produced time, type of layer etc.

3. Summary:

Gerber format is RS-274-X 2D ASCII file format. The gerber file format is a defacto standard of interface between a PCB Design engineer and manufacturer. It includes all conductive, mechanical, text and keepout layers information of a PCB design alongwith necessary notes for manufacturing.

The Altium Designer software produces RS-274-X format Gerber files by different methods. The latest software and updates about files generation are available on Altium ®. In this tutorial a complete yet comprehensive guide has been provide.

In this Gerber tutorial, I will teach you how to create the files you need for a 2-layer board using Cadsoft Eagle. After you have completed this tutorial you will have all the necessary files needed to send to most PCB manufacturers.

This tutorial is out of date. I have switched to KiCad, so I recommend the updated tutorial How to Create Gerber Files in KiCad.

Step 1: Open the CAM Processor

In Eagle, open Board view. Click the 'CAM' button or choose 'File->CAM Processor'. This will open the CAM Processor tool that is used to generate the files.

Here you can define the sections you want to create files for.

But you don't really need to understand this. Actually I have never really thought about the details of this until I was writing this article. I have just been using ready-made configurations. And that is probably what you want to do as well.

Step 2: Open a predefined job

To simplify creating Gerber files, Eagle comes with a predefined job for this. It is called gerb274x.cam.

(Note: If you want to order PCBs from Seeed Studio's Fusion PCB service, you should instead download their own CAM-file from the bottom of their submission guidelines page. Be aware that this will give you different file names than the ones listed below in this article.)

To open it in the CAM Processor click 'File->Open->Job…'

Browse to your …/eagle/cam/ folder, and you should see a file called gerb274x.cam. Choose it and click 'Open'.

You will now see five tabs in the CAM Processor. Each of these tabs will generate a Gerber file.

Step 3: Adding a second silk screen (Optional)

If you look at the tabs, you will see that you don't have a file for silk screen bottom. For simple boards, the silk screen is usually on the top layer so that you don't need the bottom. Some of the cheap circuit board manufacturers don't even allow bottom silk screen.

But if you need silk screen on bottom layer as well, follow these steps:

How To Open Pcb Gerber File Extension

• Click 'Add'
• Change Section to something like 'Silk Screen SOL'
• Change File to '%N.pls'
• Deselect all layers
• Select layers 20 'Dimension', 22 'bPlace' and 26 'bNames'

There you go.

Step 4: Create each gerber file

Select where you want to put the Gerber files by clicking on the 'File' button and choosing a folder. Do this for all the tabs.

Then click 'Process Job'. This creates your Gerber files.

Step 5: Adding file for drill holes

Even though drilling is supported by the Gerber format, manufacturers usually want the Excellon file format for specifying drill holes. Luckily, Eagle also comes with a predefined job for creating a drill file.

(Note: This step is automatically done if you're using the CAM-file from Seeed Studio that I linked to in step 2.)

Open it in the CAM Processor by clicking 'File->Open->Job…'

Browse to your …/eagle/cam/ folder, and open the file named 'excellon.cam'.

Select where to put the output file by clicking on the 'File' button.

Set apertures box.

Set advanced parameters in advanced pane or otherwise keep default settings.

Click ok , it generates the gerber outputs in the project folder.

On same method NC drill files are created i.e., File>Fabrication Outputs> NC Drill Files and then adopt the same steps as above.

Create Gerber Files

Or in other way it can be generated by following steps:

Output Job File to project > Fabrication Outputs> Gerber Files and then set path for files.

Double click 'Gerber Files' it will open Gerber setup. Use the same steps as above and click ok. Best torrent program 2020.

Enable output generate option and set target folder location.

Clock Run or double click over generates content. The gerber file outputs will be generated.

Figure 1: Sample PCB Design file

In figure 1 different layers names are shown in their respective layer. The same layers can be viewed in the final view Figure 5 as Gerber output generated.

Figure 2: Gerbers Settings Dialogue Box

Figure 3: Gerber Setup Dialogue Box opens

Figure 4: Gerber Files generated and viewed in CAMTastic Bottom Layer view

Figure 5: CamTastic complete PCB view

3. What is Needed by Manufacturer

In a gerber file following layers and information should be added:

1. 1- Enable all signal layers which have been used for routing in PCB design or those which have electrical signals routing should be enabled to re-produce in gerber format.
2. 2- Enable all plane layers which are solid copper and distribute power to the circuit on PCB. These are printed as negative image of layer.
3. 3- Enable Keepout layer, it is usually electrical boundary of the board. The keepout can also be asked to manufacturer for cutting boundary.
4. 4- Enable required mechanical layers in gerber setup. A mechanical layer does not have any electrical information like in signal layer or plane layers. However, they can have some information about mechanical parameter like PCB cutting or, 3D PCB footprints information, assembly and fixing in enclosures etc.
5. 5- Enable Top Overlay and Bottom Overlays which have information of components designators and PCB name, number, nomenclature debug information and test signal details etc.
6. 6- Dimensional Information: PCB Dimensions information should be added on top overlay or mechanical or keepout layer of PCB design file before generating gerber files.
7. 7- Layer PCB stackup: Before generating gerber files add layer stackup information in any enabled mechanical layers so that manufacturer can use information about PCB material such as base material thickness, pre-preg thickness type etc.
8. 8- Preferably produce time and date stamped Gerber files so that they would be back traced for any query.
9. 9- Recheck and verify the file types using any gerber viewer software tool.
10. 10-If found accurate and forward to the manufacturer.

Figure 6: Gerber files enable and disable and extensions

Figure 6 shows the gerber files produced by Altium Designer software, produced time, type of layer etc.

3. Summary:

Gerber format is RS-274-X 2D ASCII file format. The gerber file format is a defacto standard of interface between a PCB Design engineer and manufacturer. It includes all conductive, mechanical, text and keepout layers information of a PCB design alongwith necessary notes for manufacturing.

The Altium Designer software produces RS-274-X format Gerber files by different methods. The latest software and updates about files generation are available on Altium ®. In this tutorial a complete yet comprehensive guide has been provide.

In this Gerber tutorial, I will teach you how to create the files you need for a 2-layer board using Cadsoft Eagle. After you have completed this tutorial you will have all the necessary files needed to send to most PCB manufacturers.

This tutorial is out of date. I have switched to KiCad, so I recommend the updated tutorial How to Create Gerber Files in KiCad.

Step 1: Open the CAM Processor

In Eagle, open Board view. Click the 'CAM' button or choose 'File->CAM Processor'. This will open the CAM Processor tool that is used to generate the files.

Here you can define the sections you want to create files for.

But you don't really need to understand this. Actually I have never really thought about the details of this until I was writing this article. I have just been using ready-made configurations. And that is probably what you want to do as well.

Step 2: Open a predefined job

To simplify creating Gerber files, Eagle comes with a predefined job for this. It is called gerb274x.cam.

(Note: If you want to order PCBs from Seeed Studio's Fusion PCB service, you should instead download their own CAM-file from the bottom of their submission guidelines page. Be aware that this will give you different file names than the ones listed below in this article.)

To open it in the CAM Processor click 'File->Open->Job…'

Browse to your …/eagle/cam/ folder, and you should see a file called gerb274x.cam. Choose it and click 'Open'.

You will now see five tabs in the CAM Processor. Each of these tabs will generate a Gerber file.

Step 3: Adding a second silk screen (Optional)

If you look at the tabs, you will see that you don't have a file for silk screen bottom. For simple boards, the silk screen is usually on the top layer so that you don't need the bottom. Some of the cheap circuit board manufacturers don't even allow bottom silk screen.

But if you need silk screen on bottom layer as well, follow these steps:

How To Open Pcb Gerber File Extension

• Click 'Add'
• Change Section to something like 'Silk Screen SOL'
• Change File to '%N.pls'
• Deselect all layers
• Select layers 20 'Dimension', 22 'bPlace' and 26 'bNames'

There you go.

Step 4: Create each gerber file

Select where you want to put the Gerber files by clicking on the 'File' button and choosing a folder. Do this for all the tabs.

Then click 'Process Job'. This creates your Gerber files.

Step 5: Adding file for drill holes

Even though drilling is supported by the Gerber format, manufacturers usually want the Excellon file format for specifying drill holes. Luckily, Eagle also comes with a predefined job for creating a drill file.

(Note: This step is automatically done if you're using the CAM-file from Seeed Studio that I linked to in step 2.)

Open it in the CAM Processor by clicking 'File->Open->Job…'

Browse to your …/eagle/cam/ folder, and open the file named 'excellon.cam'.

Select where to put the output file by clicking on the 'File' button.

Then click 'Process Job' to create your Excellon file.

Step 6: Check output files

You should now have the following files:

• *.cmp (Copper, component side)
• *.drd (Drill file)
• *.dri (Drill Station Info File) – Usually not needed
• *.gpi (Photoplotter Info File) – Usually not needed
• *.plc (Silk screen, component side)
• *.pls (Silk screen, solder side)
• *.sol (Copper, solder side)
• *.stc (Solder stop mask, component side)
• *.sts (Solder stop mask, solder side)

After you have created each gerber file, you should always look at them using a Gerber viewer to make sure everything is ok.

Summary

This Gerber tutorial shows one way of creating the files you need. Even though this should be OK for many PCB manufacturers, you might find that some would want the files created in a slightly different way. If so, don't worry, they will probably provide you with a Job file you can load directly into Eagle or at least have a good explanation on how to do it on their website.

Gerber File Types

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