How to set polygon clearance around the edge of the board in Eagle?
Like many settings in Eagle, the setting is there, but it's not in an obvious place where you would look for it.  The copper to board edge clearance is burred in the DRC rules.


Select menu Tools -&gt; Drc...  The DRC dialog will open.
Go to Distance tab.
Change the field Copper/Dimension to the desired width.
(Be sure to consult the edge clearance specifications set forth by the PCB fab.)
Click Apply then close the DRC dialog.
Click rat's nest to repour the polygon pours.






(These screeshots were taken with Eagle 6.3.0.)