I Thought the PCB Was Ready Until DRC Disagreed

There have been times when a PCB looked finished.

The routing was done, the placement looked clean, and nothing seemed out of place.

Then I ran DRC.

Sometimes it was a clearance issue I hadn't noticed. Sometimes it was a trace width rule, a copper spacing violation, or another constraint that looked acceptable visually but didn't match the design rules.

That's one reason I don't rely only on what I see on the screen.

A PCB can look finished and still violate the rules it was designed to follow.

Before generating manufacturing files, I always let DRC have the final opinion.

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