• Commonly used components
• hiding airwires
• rotate arbitary degree
• to create a BOM type run bom.ulp in the schematic editor
• Eagle layers defined
• keepout and restrict layers
• gerber file extensions
• making a library
  

Creating a (not necessarily) GND plane (from The Sparkfun Board Tutorial):

1. polygon
2. isolate 0.012
3. set width to width of traces to connect to ground (0.024?)
4. draw polygon using grid to make sure things line up
5. choose “name” tool and click in middle of polygon. Name it GND or whatever
6. ratsnest

Preparing for a DIY milling machine:

• use script from PCB GCode

Generating for a board house:

generating pick and place (centroid) file. Two versions of this file. From board type “run ” then either:

• mountsmd.ulp
• centroid-screamingcircuits-smd.ulp (preferred by pcbway?)