Thursday, January 1, 2015

Exporting Excellon files

An Excellon-file is used to exchange the drill data of a board with your manufacturer. It contains all diameters and positions of your drillings.
 
Call EXPORT -> DRILL DATA (EXCELLON) from the FILE item of the main menu.

excellion export
Origin of coordinates
Select from which board-side the coordinates will be generated. If you select side 2, the coordinates will be horizontal mirrored. The origin will be always on the left-bottom edge.
 
Unit of measurement
Select the unit of the coordinates. Some machines may anly work with inches. Normally, you should select the mm option.
 
Floating point (xx.yy)
Here you can select the desired format for the numeric data. Usually the format 3.2 is common.
If you select the inch-unit, you should set the format to 3.3 because of more accuracy.
 
The delete leading zeros option can be used normally without problems. If there is any trouble with it, you can deselect this option.

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