**Before Beginning: Deleting the Default Board Outline
To create a custom board outline shape, first delete the default board outline. To do this:
You are now ready to place a custom board outline using one of the methods outlined below.
Tip: A method that works well in defining specific vertices for the polygon is to start the polygon at the design reference point (). For simple shapes with a few vertices, the exact locations of the required vertices can be set by clicking on the * <Shift+8> to specify the (X, Y) coordinates in a counter clock-wise direction around the board outline. For more complex shapes, it is advantageous to make a list of the (X, Y) coordinates of the required vertices prior to constructing the polygon. Start at the reference point and complete a simple polygon (shape doesn’t matter) and by double clicking on the polygon, enter the vertices list in the Polygon tab of the properties dialog.
To locate an error in the board outline, zoom in on each of the corners and be certain that the individual lines are connected at the highest zoom level. Unconnected corners are the most common type of PCB board outline errors.
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