Page 86 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards

will become attached to the cursor, which you can then move and click to deposit the copy onto the
schematic.

Rotate

To rotate a component, click on the Rotate command, and then click on the component to be rotated.
This will rotate it through 90 degrees. To rotate it more, just keep clicking.

When drawing a schematic, it only really makes sense to rotate through multiples of 90 degrees.
However, when designing the board layout, it is occasionally useful to be able to rotate a component
to an unusual angle such as 45 degrees.

TIP When you are moving components around, you will often find that you need to switch
between moving and rotating. You can rotate a component when using the Move command
by right-clicking.

Add

We have dealt pretty well with Add. Once you have selected the component that you want to add, then
every click of the mouse will result in a new component being dropped onto the design area. To go
back and select a different component to add, click on the ESC key.
One aspect of the Add command that we have not looked at is adding multigate or multipart

components. Examples of this kind of component include logic chips that contain multiple gates or
chips such as the NE556 that contain the equivalent to two NE555 timers in a single chip.
When you add one of these components, the first click will put the first gate or subpart onto the
design area; subsequent clicks will place the other gates or subparts. Each part will be given a name,

the first part of which is the component number and the second part of which is the gate or subpart
within that chip.

Replace

Replace is a useful command that lets you swap out one component for another that is pin-compatible.
This has the advantage over deleting it and adding a new part in that it retains all the net attachments
to the part.

To use it, select the command, and then browse for the replacement component. Then click on the
component in the design area that you wish to replace.

Net

We will cover nets in a later section.

Other Commands

Other commands that you will need from time to time are detailed below. It is worth gaining some
basic familiarity with them.