User Guide

Table Of Contents
8.1 DefinitionofaSimpleResistor
First open a new library in the EAGLE Control Panel using the
File/New/Library menu.
Alternativelyyoucantypethecommand
OPEN
on the command line of the Schematic or Layout Editor windows. Then
enteralibrarynameinthefiledialog.Thelibrarywindowopens.
ResistorPackage
DefineaNewPackage
Select the package editing mode via the icon in the action toolbar, and
enter the package name R-10 in the New field. Answer the question
Create new package ‘R-10’? with Ye s. Later when creating a new symbol
and a new device you will again have to answer the corresponding ques
-
tionswith Ye s.
SettheGrid
Use the GRID command to set an appropriate grid size for the pad
placement. 0.05 inch (i.e. 50 mil) is usual for standard components with
leadwires.
SolderPads
For a resistor with lead-wires, select PAD, and set the pad shape and the
drill diameter in the parameter toolbar. The default value for the pad di
-
ameter is auto (respectively 0). This value should be kept. The actual di
-
ameter is specified by the Design Rules for the layout. Then place two
pads at the desired distance. The origin of the drawing will later be the
identifying point with which a component is selected. For this reason it
shouldbesomewherenearthecenterofthedevice.
You should not draw any objects in layer 17, Pads, or 18, Vias! They will
not be recognized, nor by the DRC, neither by polygons drawn in the lay
-
out,andcanleadtoshortcircuits!
For a SMD resistor, select SMD, and set the pad dimensions in the pa
-
rameter toolbar. You can either select one of the offered values, or di
-
rectlytypethelengthandbreadthintotheentryfield.
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EAGLEManual