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Guided Tour through EAGLE
Copper pouring
Creating copper areas is done with the Polygon command.
It allows you to draw the outlines of an area and assign it to a specific signal.
The Ratsnest command then calculates the exact shape of the copper area.
Unlike other programs, which implement copper pouring by subtracting layers from each
other, EAGLE actually calculates the entire shape of the area. It therefore can detect
orphaned areas (which are not connected to the signal, like in the lower
right corner of the example) and create output for Gerber
and pen plotters.
Next: Producing CAM data
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