I can't get ground planes to go all the way to the edge of the PCB. When I draw the polygon I have the width set to 0.01 and the isolate parameter set to zero. If I draw the polygon to match the border area (as defined in the dimension layer) and do the ratsnest command the ground plane shrinks and leaves a gap between it and the board edge (0.05 in. in my case). What do I need to do to eliminate this gap (margin).
