chiark / gitweb /
wardrobe-hook: prototype
authorIan Jackson <ijackson@chiark.greenend.org.uk>
Sat, 15 Feb 2014 19:50:29 +0000 (19:50 +0000)
committerIan Jackson <ijackson@chiark.greenend.org.uk>
Sat, 15 Feb 2014 19:50:29 +0000 (19:50 +0000)
wardrobe-hook.scad

index e43822e..1f13834 100644 (file)
@@ -46,7 +46,7 @@ mainoutrad = tuberad + mainthick;
 hookoutrad = hookinrad + hookwidth;
 hookcy = -(stemlen - hookoutrad);
 
-eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 1];
+eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
 elmid = [topwidth/2, -tuberad];
 ellow = tangent_intersect_b([0,hookcy], hookinrad, elmid);
 ellowextra = 180 - tangent_intersect_beta([0,hookcy], hookinrad, elmid);
@@ -65,7 +65,9 @@ module ElevationCore(){
   FArcSegment(0, hookcy, hookinrad, hookoutrad,
              180 - ellowextra,
              90 + hookcurl);
-  translate([-hookoutrad*sqrt(0.5), -(stemlen+10)]) mirror([1,0])
+  translate([-hookoutrad*sqrt(0.5),
+             hookcy - hookoutrad*sqrt(0.5) + 0.1])
+    mirror([1,0])
     square(center=false, size=[topwidth, stemlen + tubeheight + 20]);
   polygon([[-hookoutrad, ellow[1]],
           reflect_in_y(eltop),
@@ -74,11 +76,38 @@ module ElevationCore(){
           ellow]);
 }
 
-intersection(){
-  translate([0,1, -(topwidth+10)/2])
-    linear_extrude(height=topwidth+10) Plan();
-  translate([50,0])
-    rotate([0,-90,0])
-    linear_extrude(height=100)
-    ElevationCore();
+// after here is all 3D
+
+module Primary(){
+  intersection(){
+    translate([0,0, -(topwidth+10)/2])
+      linear_extrude(height=topwidth+10) Plan();
+    translate([50,0])
+      rotate([0,-90,0])
+      linear_extrude(height=100)
+      ElevationCore();
+  }
+}
+
+module PlaneAbove(){
+  translate([-100,-100,0]) cube(center=false,size=[200,200,200]);
 }
+
+taperangle = -270 + tangent_intersect_beta([-hookcy, 0],
+                                         hookoutrad,
+                                         [-eltop[1], -eltop[0]]);
+module Hook(){ ////toplevel
+  difference(){
+    rotate([taperangle,0,0])
+      translate([0,-eltop[1],0])
+      Primary();
+    translate([0,0,topwidth/2])
+      rotate([taperangle*2,0,0])
+      PlaneAbove();
+    translate([0,0,-topwidth/2])
+      mirror([0,0,1]) PlaneAbove(0);
+  }
+}
+
+//ElevationCore();
+Hook();