From 1b550f4b24aea28612acbbef4f137c2f366372a8 Mon Sep 17 00:00:00 2001
From: davor <davor@ssd.lan>
Date: Thu, 7 Dec 2017 02:00:39 +0100
Subject: [PATCH] footprint dip switch openscad model. needs yet to be
 converted to kicad compatible vrml

---
 .../dipswitch_smd.3dshapes/dipswitch_smd.scad | 85 +++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 footprints/dipswitch/dipswitch_smd.3dshapes/dipswitch_smd.scad

diff --git a/footprints/dipswitch/dipswitch_smd.3dshapes/dipswitch_smd.scad b/footprints/dipswitch/dipswitch_smd.3dshapes/dipswitch_smd.scad
new file mode 100644
index 0000000..cab54ae
--- /dev/null
+++ b/footprints/dipswitch/dipswitch_smd.3dshapes/dipswitch_smd.scad
@@ -0,0 +1,85 @@
+/*
+Open freecad, select Workbench OpenSCAD
+import file, select group and export to
+VRML 2.0 (wrl file)
+https://www.freecadweb.org/wiki/Import_OpenSCAD_code
+*/
+
+n_switches=4; // number of dip switches
+pitch=2.54; // pin pitch
+
+body=[(n_switches+0.5)*pitch, 3*pitch, 1.5*pitch];
+height=pitch/8; // body above z axis
+
+swhole=[pitch*0.5,pitch,pitch*0.5];
+button=[pitch*0.4,pitch*0.4,pitch*0.5];
+
+font = "Liberation Sans";
+letter_size = pitch/2;
+letter_height = pitch/16;
+
+module letter(l)
+{
+  // Use linear_extrude() to make the letters 3D objects as they
+  // are only 2D shapes when only using text()
+  linear_extrude(height = letter_height)
+  {
+	text(l, size = letter_size, font = font, halign = "center", valign = "center", $fn = 16);
+  }
+}
+
+// 2 pins for 1 switch
+module pin_smd()
+{
+  translate([0,0,pitch/8])
+      cube([pitch/3,pitch*0.75,pitch/4],center=true);
+}
+
+module dipsw_smd()
+{
+  translate([0,0,body[2]/2+height]) // little above
+    union()
+    {
+      // cut off holes for switches
+      difference()
+      {
+        color("maroon")
+          cube(body,center=true);
+        // holes for switches
+        for(i = [0:n_switches-1])
+        {
+          color("maroon")
+          translate([(i-n_switches/2+0.5)*pitch,0,body[2]/2-swhole[2]/2+0.01])
+            cube(swhole,center=true);
+        }
+      }
+      // place the switch buttons and letters
+      for(i = [0:n_switches-1])
+      {
+        translate([(i-n_switches/2+0.5)*pitch,swhole[1]/2-button[1]/2-(swhole[0]-button[0])/2,body[2]/2-button[2]/2+0.01])
+          color("white")
+            cube(button,center=true);
+        translate([(i-n_switches/2+0.5)*pitch,-body[1]/2+letter_size,body[2]/2])
+          color("white")
+            letter(chr(48+(i+1)%10));
+
+      }
+      // text "ON"
+      translate([(0-n_switches/2+0.5)*pitch,    body[1]/2-letter_size,body[2]/2])
+          color("white")
+            letter("ON");
+      // the pins
+      for(i = [0:n_switches-1])
+      {
+        // pins
+        for(j = [-1:2:1])
+          translate([(i-n_switches/2+0.5)*pitch,  j*(body[1]/2+pitch*0.75/2),-body[2]/2-height+pitch/8])
+            color("white")
+              cube([pitch/3,pitch*0.75,pitch/4],center=true);
+      }
+   }
+}
+
+//scale(0,254) // proper scale for KiCAD WRL file
+//  rotate([0,0,90])
+    dipsw_smd();