Initial commit.

clothbot · Oct 10, 2012 · d32cfa3 · d32cfa3
1 parent 498f6a2
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diff --git a/fabjects/Toys/Halloween/.gitignore b/fabjects/Toys/Halloween/.gitignore
@@ -0,0 +1,3 @@
+*.stl
+*.gcode
+
diff --git a/fabjects/Toys/Halloween/pumpkin.scad b/fabjects/Toys/Halloween/pumpkin.scad
@@ -0,0 +1,105 @@
+// Parametric Pumpkin
+
+render_part="pumpkin_body";
+render_part="pumpkin_hollow";
+render_part="hollow_pumpkin";
+render_part="pumpkin_face";
+//render_part="hollow_pumpkin_w_face";
+
+
+module lobe(a=30,truncate=true) {
+  difference() {
+    union() {
+	sphere($fn=32,r=0.5);
+	translate([0,0,-0.5*cos(a)]) rotate([180,0,0]) cylinder($fn=32,r1=0.5*sin(a),r2=0,h=0.5*sin(a)/tan(90-a),center=false);
+    }
+    if(truncate) translate([0,0,-0.5]) rotate([180,0,0]) cylinder(r=0.5,h=1.0);
+  }
+}
+
+module pumpkin_body(diam=20.0,lobes=9) {
+  translate([0,0,diam/2]) union() {
+    sphere($fn=32,r=0.5*diam);
+    for(i=[0:lobes-1]) rotate([0,0,360*i/lobes]) translate([0,2*diam/lobes,0])
+      scale([diam*(1-2/lobes),diam*(1-2/lobes),diam]) lobe(a=30,truncate=true); 
+  }
+}
+
+if(render_part=="pumpkin_body") {
+  echo("Rendering pumpkin_body()...");
+  pumpkin_body();
+}
+
+module pumpkin_hollow(diam=20.0,lobes=9,wall_th=0.8, bottom_hole_d=5.5) {
+  translate([0,0,diam/2]) {
+    sphere($fn=32,r=0.5*(diam-wall_th));
+    for(i=[0:lobes-1]) rotate([0,0,360*i/lobes]) translate([0,2*diam/lobes,0])
+	scale([(diam-2*wall_th)*(1-2/lobes),(diam-2*wall_th)*(1-2/lobes),diam-2*wall_th]) rotate([180,0,0]) lobe(a=30,truncate=false);
+    translate([0,0,diam/2-diam/lobes]) cylinder($fn=lobes,r1=diam/lobes,r2=3*diam/lobes,h=3*diam/lobes,center=true);
+  }
+  cylinder($fn=16,r=bottom_hole_d/2,h=4*wall_th,center=true);
+}
+
+if(render_part=="pumpkin_hollow") {
+  echo("Rendering pumpkin_hollow()...");
+  % pumpkin_body();
+  pumpkin_hollow();
+}
+
+module hollow_pumpkin(diam=20.0,lobes=9,wall_th=0.8,bottom_hole_d=5.5) {
+  render() difference() {
+    pumpkin_body(diam=diam,lobes=lobes);
+    pumpkin_hollow(diam=diam,lobes=lobes,wall_th=wall_th,bottom_hole_d=bottom_hole_d);
+  }
+}
+
+if(render_part=="hollow_pumpkin") {
+  echo("Rendering hollow_pumpkin()...");
+  hollow_pumpkin();
+}
+
+module pumpkin_mask(diam=20.0,lobes=9,wall_th=0.8) {
+  for(i=[0:$children-1]) intersection() {
+    hollow_pumpkin(diam=diam,lobes=lobes,wall_th=wall_th);
+    child(i);
+  }
+}
+
+module pumpkin_face_parts(diam=20.0,lobes=9,wall_th=0.8) {
+    // eyes
+    translate([0,0,3*diam/4]) {
+	rotate([90,0,30]) rotate([0,0,-30]) cylinder($fn=3,r=diam/10,h=diam,center=false);
+	rotate([90,0,-30]) rotate([0,0,-30]) cylinder($fn=3,r=diam/10,h=diam,center=false);
+    }
+    // nose
+    translate([0,0,diam/2+diam/16]) {
+	rotate([90,0,0]) rotate([0,0,-30]) cylinder($fn=3,r=diam/8,h=diam,center=false);
+    }
+    // mouth
+    translate([0,0,diam/4+diam/8]) {
+	rotate([90,0,0]) render() scale([1.5,0.5,1]) difference() {
+	  cylinder(r=diam/4,h=diam,center=false);
+	  translate([0,diam/8,0]) cylinder(r=diam/4,h=diam,center=false);
+	}
+    }
+}
+
+module pumpkin_face(diam=20.0,lobes=9,wall_th=0.8) {
+  % pumpkin_body(diam=diam,lobes=lobes);
+  pumpkin_mask(diam=diam,lobes=lobes,wall_th=wall_th) {
+    pumpkin_face_parts(diam=diam,lobes=lobes,wall_th=wall_th);
+  }
+}
+
+if(render_part=="pumpkin_face") {
+  echo("Rendering pumpkin_face()...");
+  pumpkin_face(wall_th=2*0.8);
+}
+
+if(render_part=="hollow_pumpkin_w_face") {
+  echo("Rendering hollow_pumpkin_w_face...");
+  difference() {
+    hollow_pumpkin(wall_th=2*0.8);
+    pumpkin_face_parts(wall_th=2*0.8);
+  }
+}