Separate material definitions

cad/CyanStripe/Case.scad

 
 use <PCB.scad>;
+use <Material.scad>;
 use <../../WebWeaver/scad/Util.scad>;  // TODO: needed?
 
 
@@ -15,9 +16,22 @@ plexi = 3;
 c_sx = pcb_w() + 0;
 c_sy = pcb_h() + 0;
 c_sz = 20;
+c_fs = 15;  // frontSpace = pcb to upper plexi
 
 
 
+module frontPlexiOutline() {
+  
+  
+  
+}
+
+module frontPlexi() {
+  Plexiglass()
+    linear_extrude(plexi, convexity=20)
+      frontPlexiOutline();
+}
+
 
 module CyanStripeCase() {
   

cad/CyanStripe/Material.scad

+
+
+module Plexiglass(alpha=0.1) {
+  color([0 /255, 0/255, 0/255], alpha=alpha) children();
+}
+
+module FR4(alpha=1.0) {
+  color([170 /255, 0, 200 /255], alpha=alpha) children();
+}
+
+module Solder(alpha=1.0) {
+  color("grey", alpha=alpha) children();
+}

cad/CyanStripe/PCB.scad

 
+use <Material.scad>;
 use <../../WebWeaver/scad/Util.scad>;
 
 $fs = 0.35;
@@ -53,20 +54,20 @@ module pcbOutline() {
 }
 
 module pcb3D(pcb_t=pcb_t()) {
-  color([170 /255, 0, 200 /255])
+  FR4()
     linear_extrude(pcb_t())
       pcbOutline();
 
   if ($preview) {
 
     pcbScrewHoles()
-      color("grey")
+      Solder()
         difference() {
           translate([0, 0, -$E]) cylinder(d=M3()*2, h=pcb_t()+2*$E);
           translate([0, 0, -$E*2]) cylinder(d=M3()-$E,   h=pcb_t()+4*$E);
         }
 
-    color("grey")
+    Solder()
       translate([tpow_x(), tpow_y(), pcb_t() - $E])
         cube([tpow_sx(), tpow_sy(), tpow_sz()], center=true);
   }