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Find the file of type ".cam", click it, and then hit F9.

Hit the "Explorer" tab on the far left.

All too often your "fixes" cause other problems.

Hit "Tools | Design Rule Check | Run DRC" to run a design rules check.

You increment the revision number on the silkscreen on the board.

You find the ".ddb" file for Board Y, double-click on it, then find the ".PCB" file.Move them closer together on the next revision, OK ?". The holes are too far apart for Component X on Board Y.

If you have a Protel document that someone has already set up properly, it's easy to make minor changes to the PWB. The details are Protel-oriented, since that's what I know, Here's the basic sequence of steps you go through when you work on a PWB (printed wiring board) using CAD design software. Common problems during component placement.