X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=wardrobe-hook.scad;h=ade8420babf4e8871bb5ce19894c47893225802c;hb=31259cb3d858016201417dcf95839a335041220e;hp=e43822e13b77ffe10556e621b1dafc857fec7446;hpb=06f9b413dd355fd5652491ff212d93687a788f9a;p=reprap-play.git

diff --git a/wardrobe-hook.scad b/wardrobe-hook.scad
index e43822e..ade8420 100644
--- a/wardrobe-hook.scad
+++ b/wardrobe-hook.scad
@@ -15,8 +15,8 @@ module FArcSegment(xc,yc,inrad,outrad,alpha,delta) {
   translate([xc,yc]) {
     intersection() {
       difference() {
-	circle(r=outrad);
-	circle(r=inrad);
+	circle(r=outrad, $fn=70);
+	circle(r=inrad, $fn=70);
       }
       rotate(alpha) scale(outrad*2) {
 	FArcSegment_mask(delta);
@@ -25,16 +25,17 @@ module FArcSegment(xc,yc,inrad,outrad,alpha,delta) {
   }
 }
 
-tubeheight = 30;
-tubewidth = 15;
+tubeslop = 0.5;
+tubeheight = 30 + tubeslop;
+tubewidth = 15 + tubeslop;
 mainthick = 4;
 
 clipthick = 2;
-clipang = 120;
+clipang = 135;
 
 stemlen = 50;
 
-topwidth = 30;
+topwidth = 20;
 
 hookinrad = 7.5;
 hookcurl = 60;
@@ -46,7 +47,7 @@ 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);
@@ -64,8 +65,10 @@ module Plan(){
 module ElevationCore(){
   FArcSegment(0, hookcy, hookinrad, hookoutrad,
 	      180 - ellowextra,
-	      90 + hookcurl);
-  translate([-hookoutrad*sqrt(0.5), -(stemlen+10)]) mirror([1,0])
+	      90 + hookcurl + ellowextra);
+  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 +77,38 @@ 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();