This command is used to define e.g. mounting holes (has no electrical connection between the different layers) in a board or in a package. The parameter drill defines the diameter of the hole in the actual unit. It may be up to 0.51602 inch (13.1 mm).
HOLE 0.20 *If the actual unit is "inch", the hole will have a diameter of 0.20 inch.
The entered value for the diameter (also used for via-holes and pads) remains as a presetting for succeeding operations. It may be changed with the command:
CHANGE DRILL value *A hole can only be selected if the Holes layer is displayed.
A hole generates a symbol in the Holes layer as well as a circle with the diameter of the hole in the Dimension layer. The relation between certain diameters and symbols is defined in the "Options/Set/Drill" dialog. The circle in the Dimension layer is used by the Autorouter. As it will keep a (user-defined) minimum distance between via-holes/wires and dimension lines, it will automatically keep this distance to the hole.
Holes generate Annulus symbols in supply layers.
In the layers tStop and bStop, holes generate the solder stop mask, whose diameter is calculated by the hole diameter plus the value frame defined with the option -B.
|Index||Copyright © 2005 CadSoft Computer GmbH|