Index: work/fem/examples/koen/pcbrnd_direct/hairpinfilter_diff/vias/hairpinfilter.m
===================================================================
--- work/fem/examples/koen/pcbrnd_direct/hairpinfilter_diff/vias/hairpinfilter.m	(revision 30566)
+++ work/fem/examples/koen/pcbrnd_direct/hairpinfilter_diff/vias/hairpinfilter.m	(revision 30567)
@@ -59,7 +59,8 @@
 layer_types(3).thickness = 0.07/1000;
 layer_types(3).conductivity = 56*10^6;
 
-%evan pick up with this here
+% This is an additional layer type created just for the copper that has to be 
+% 3D in the via.
 layer_types(4).name = 'COPPER_via';
 layer_types(4).subtype = 3;
 layer_types(4).thickness = 0; 
@@ -143,7 +144,7 @@
 % the following 2 lines are the only ones that matter
 % x and y set just like for polygons and everything else
 % this via is at x=20.5, y=9; it starts at layer 1 and stops on layer 2; the copper plated radius is 0.8mm and the air inside the copper has a radius of 0.75mm
-% the matterial for the copper is ____ and the matterial for the air inside is PCBRND.void.name these are just variable names
+% the matterial for the copper is layer_types(4).name and the matterial for the air inside is PCBRND.void.name these are just variable names
 point3(1, 1) = 20.5;point3(2, 1) = -9;
 CSX = AddPcbrndVia(CSX, PCBRND, 1, 2, point3, 0.75, 0.8, PCBRND.void, layer_types(4));