Minor refactorings

HeatSink.scad

@@ -211,23 +211,28 @@ module funnel2D() {
 // ff = funnel fin
 ff_str = hs_fin_w0;  // strength
 
-module funnelFin(y){
+module funnelFins(){
+  
+  module fin(y) {
+    module _fF(y) {
+      translate([0, -y/2, 0]) square([x, y]);
+      translate([0, 0, 0]) roundTri((x*9) * (y/hs_w), y, 5);
+    }
 
-  module _fF(y) {
-    translate([0, -y/2, 0]) square([x, y]);
-    translate([0, 0, 0]) roundTri((x*9) * (y/hs_w), y, 5);
+    difference() {
+      _fF(y + ff_str/2);
+      _fF(y - ff_str/2);
+    }
   }
   
+  fin(hs_w - 5);
   
-  difference() {
-    _fF(y + ff_str/2);
-    _fF(y - ff_str/2);
-  }
+  // for (y=[0:fin_cnt/2 - 1]) translate([0, y * (  fin_w0 + fin_spacing), baseplate]) fin();
 }
 
 
 
-color([0, 0, 1.0, 1.0]) translate([0, 0, 1]) linear_extrude(1) funnelFin(hs_w - 5);
+color([0, 0, 1.0, 1.0]) translate([0, 0, 1]) linear_extrude(1) funnelFins();
 
 
 module  funnel() {