increase radius of the through hole in the mount

first_order.scad

@@ -20,7 +20,7 @@ mic_height = 4.5;
 amb_radius = 12.5;
 
 // dimensions of microphone holder
-hold_radius = 3;
+hold_radius = 4;
 
 // separation between capsules (right now only used in stalk)
 cap_sep = 7;
@@ -161,7 +161,7 @@ module mount (radius, length, wall, separation) {
 			// create the slopes in the ridges
 			for (rot = [0 : 180 : 360]) {
 				rotate([0, 0, rot]) {
-					translate([- radius, radius, radius + wall / 2]) {
+					translate([- radius, radius, 3.5]) {
 						rotate([55, 0, 45]) {
 							cube([radius * 3, radius, radius * 3], center = true);
 						}