From PCB Design to Fabrication: Turning Your Layout into a Real Circuit Board

You have prototyped, soldered, and even hand-built a board. This final Month 2 lesson closes the loop: how to turn a finished PCB design into a professionally manufactured board. You will learn to choose a manufacturer, export the Gerber files a factory needs, and run the pre-fabrication checklist that prevents a costly mistake. Your milestone project is to export the game shield as a fabrication-ready design.

Choosing a manufacturer

PCB fabrication machines are expensive, so you send your design to a manufacturer that makes the board for you. Popular services such as JLCPCB, OSH Park, and PCBWay all work the same basic way: you upload a Gerber file and they print and ship the board. Three questions guide your choice. How many boards do you need, since some have a minimum order quantity, and a personal project usually needs just one. How soon do you need them, since turnaround ranges from days to weeks. And do you need special features like unusual colors, thicker traces, or extra layers, which most simple projects do not.

What a Gerber file is

A Gerber file is the industry-standard blueprint for PCB manufacturing, containing everything a factory needs to build your board. It is not a single image but a set of files, one per layer of the board. The key layers are the copper traces, which are the electrical pathways, the silkscreen, which is the printed component labels and markings, the solder mask, the protective coating that gives boards their color and keeps solder where it belongs, and the drill file, which tells the machine where to drill holes for through-hole parts. Together they fully describe the physical board.

Exporting Gerbers and the pre-fabrication checklist

Once your layout is complete, meaning it passes the design rule check with no errors, you export the Gerbers, in EasyEDA through the Fabrication Output option, review the preview, and download the zip. Before you order, run a final checklist, because a mistake caught after fabrication means a useless board. Confirm there are no overlapping traces or components, that drill hole sizes are correct for your through-hole parts, that text labels are readable and placed well, and that ground planes are properly connected. The design rule check automates most of this, so run it and clear every error first.

Working through it

Finish and validate the layout. Make sure your PCB layout is complete and passes the design rule check with zero errors. Fix any conflicts the checker reports before going further.

Run the final checklist. Confirm no overlapping traces or components, correct drill hole sizes, readable and well-placed labels, and properly connected ground planes.

Export the Gerber files. Use Fabrication Output, choose the Gerber export, keep the design rule check enabled, review the preview, and download the zip of layer files.

Choose a manufacturer and order. Pick a service based on quantity, turnaround, and any features you need, upload the Gerber zip, and place the order. Printing is optional for the project.

Complete your milestone project. Prepare and export the Gerber files for your game shield. Optionally order it, or design a completely different shield of your own if you have an idea you would rather build.

Common mistakes and troubleshooting

Exporting Gerbers with unresolved design errors. Run and clear the design rule check first; the manufacturer builds exactly what you send, mistakes included.

Overlapping traces or components in the layout. Separate them so no copper paths or parts collide; the DRC flags most of these.

Wrong drill hole sizes for through-hole parts. Match each hole to its component's lead size so parts fit after fabrication.

Ground planes not fully connected. Verify the ground pour ties to every ground point; a broken ground plane can leave the board non-functional.

Ordering more boards than you need. Check the minimum order quantity; a personal project usually needs only one board.

Next: That completes Month 2. Next month shifts from microcontrollers to microcomputers, with the Raspberry Pi 5 and hands-on AI.