Added source code

tests/washers.scad

@@ -0,0 +1,47 @@
+//
+// NopSCADlib Copyright Chris Palmer 2018
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../core.scad>
+use <../utils/layout.scad>
+
+include <../vitamins/washers.scad>
+
+function penny_diameter(w) = let(p = penny_washer(w)) washer_diameter(p ? p : w);
+
+module washers()
+    layout([for(w = washers) penny_diameter(w)], 2) let(w = washers[$i]) {
+        star_washer(w);
+
+        if(spring_washer_thickness(w))
+            translate([0, 20])
+                let($explode = 1)
+                    spring_washer(w);
+
+        translate([0, 40])
+            washer(w);
+
+        if(penny_washer(w))
+            translate([0, 65])
+                penny_washer(w);
+
+        translate([0, 90])
+            printed_washer(w);
+    }
+
+if($preview)
+    washers();