X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=wardrobe-hook.scad;h=ecb1b12b66cb572fdee4cb0e126a41b1e9384251;hb=f57afd91759a049296c6d454b2e3a2b46a5560f7;hp=e37e1dacb87125407e94454ca907446900adbb7d;hpb=98829f3f7c334d0bd11c1f7db6df149a1de67f15;p=reprap-play.git

diff --git a/wardrobe-hook.scad b/wardrobe-hook.scad
index e37e1da..ecb1b12 100644
--- a/wardrobe-hook.scad
+++ b/wardrobe-hook.scad
@@ -1,5 +1,7 @@
 // -*- C -*-
 
+include <funcs.scad>
+
 module FArcSegment_mask(beta) {
   for (i=[0 : 0.75 : 3]) {
     rotate(i*beta/4)
@@ -30,10 +32,24 @@ mainthick = 4;
 clipthick = 2;
 clipang = 120;
 
-bend = 5;
+stemlen = 50;
+
+topwidth = 30;
+
+hookinrad = 7.5;
+hookcurl = 60;
+hookwidth = 4;
 
 tuberad = tubewidth/2;
+bend = atan(tuberad/stemlen);
 mainoutrad = tuberad + mainthick;
+hookoutrad = hookinrad + hookwidth;
+hookcy = -(stemlen - hookoutrad);
+
+eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 1];
+elmid = [topwidth/2, -tuberad];
+ellow = tangent_intersect_b([0,hookcy], hookinrad, elmid);
+ellowextra = 180 - tangent_intersect_beta([0,hookcy], hookinrad, elmid);
 
 module Plan(){
   dy = tubeheight - tuberad*2;
@@ -41,8 +57,23 @@ module Plan(){
   FArcSegment(0, 0,  tuberad, mainoutrad, -bend, bend+1);
   translate([tuberad, 0]) square(center=false, size=[mainthick,dy]);
   FArcSegment(0, 0, tuberad, tuberad + clipthick, 360-clipang, clipang+1);
+  rotate(-bend) translate([tuberad, 0]) mirror([0,1])
+    square(center=false, size=[mainthick, stemlen/cos(bend)]);
 }
 
-Plan();
+module ElevationCore(){
+  FArcSegment(0, hookcy, hookinrad, hookoutrad,
+	      180 - ellowextra,
+	      90 + hookcurl);
+  translate([-hookoutrad*sqrt(0.5), -(stemlen+10)]) mirror([1,0])
+    square(center=false, size=[topwidth, stemlen + tubeheight + 20]);
+  polygon([[-hookoutrad, ellow[1]],
+	   reflect_in_y(eltop),
+	   eltop,
+	   elmid,
+	   ellow]);
+}
 
-//FArcSegment(0, 20, 20,30, 20,160);
+Plan();
+translate([50,0])
+  ElevationCore();