User Guide

If, for example, a smd should be placed on the bottom side of the board
youmayaddthe Mirror flag,asin:
ROTATE=MR45'IC1';
An additional Spin flag causes texts to be written upside down (by a ro
-
tationof180°),thatmeanstheycanbereadfromthetopview:
ROTATE=SMR180'IC1';
The Spin flag is alternating, i. e. using it again causes the text to be dis
-
played'normal'again.
Check frequently whether the placement is favorable or not. To do this,
use the RATSNEST command. This calculates the shortest connections
oftheairwires.
The position of particular devices can be displayed by typing the device
name onto the command line or by clicking directly on an element while
theSHOWcommandisactive.
Clicking with INFO onto a device provides detailed information about
it.
If the text for the name or the value is located awkwardly, separate them
from the device with SMASH and move them to whatever position you
prefer with MOVE. At the same time EAGLE shows a line from the
text’s origin to the belonging element. Clicking with DELETE on either
ofthetextsmakesitinvisible.
Holding down the Shift key while the SMASH command is active the
name and value texts will appear at their original positions again. They
arenolongereditableandaresotospeakunsmashed.
Please keep in mind that the CAM Processor always uses vector font for
generatingmanufacturingdata.
We recommend to write texts in the layout always in vector font (at least in
the signal layers). If you do so the shown text meets exactly reality. Further
informationcanbefoundonpages 33 and 119.
BoardswithComponentsonBothSides
If the board is also going to have components on the underside, the
MIRROR command is used. It causes devices on the underside to be in
-
verted. SMD pads, the silk screen and the layers for the solder stop and
soldercreammasksareautomaticallygiventhecorrecttreatmenthere.
While ADD, COPY, MOVE, or PASTE is active it is possible to mirror
anelementoraselectedgroupwiththemiddlemousebutton.
It is not necessary for the Package Editor to define devices in the library as
beingonthebottomside.
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FromSchematictoFinishedBoard