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PCB layout

Opening the PCB editor, you should see something like this:

PCB editor

Any time you change the schematic, press F8 (or click Update PCB from Schematic) to pull the changes into the layout. The two circles you see are M3 mounting holes - press A to add your own.

#Define the board outline

  • The white outline is the Edge Cuts layer - the physical boundary where the PCB gets cut. Draw it by selecting Edge.Cuts on the right and using the drawing tools.

  • Want something more custom than rectangles? This outline was drawn in Figma, converted with an image-to-DXF converter, imported into KiCad, then scaled against a 100 × 100 mm reference box using the measuring tool:

    cutout

  • KiCad's own drawing tools work well too - a cool, unique border is worth the detour though. Try it!

#Place the components

  • Place every component inside the outline. The thin straight blue lines are ratlines (ratsnest lines) - unrouted connections showing which pads must eventually be joined by copper.

  • Arrange components so the ratlines are short and don't cross - that's the whole game, and it makes routing dramatically easier.

  • M moves, R rotates, F flips a component to the other side of the board, and Ctrl+S saves - do that often.

  • Here's the result: