funcs.scad.cpp: rename 2d things 2d, provide tangents_intersect_beta

[reprap-play.git] / wardrobe-hook.scad

diff --git a/wardrobe-hook.scad b/wardrobe-hook.scad
index 1f13834396102d26c66e726c128b648abbcc9814..331121cffc1772c73cefc8d38e703252bbb990eb 100644 (file)
--- 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;
+stemlen = 40;
 
-topwidth = 30;
+topwidth = 20;
 
 hookinrad = 7.5;
 hookcurl = 60;
@@ -51,20 +52,24 @@ elmid = [topwidth/2, -tuberad];
 ellow = tangent_intersect_b([0,hookcy], hookinrad, elmid);
 ellowextra = 180 - tangent_intersect_beta([0,hookcy], hookinrad, elmid);
 
-module Plan(){
+module ClipPlan(qbend, qstemleny){
   dy = tubeheight - tuberad*2;
   FArcSegment(0, dy, tuberad, mainoutrad, -1, 181);
-  FArcSegment(0, 0,  tuberad, mainoutrad, -bend, bend+1);
+  FArcSegment(0, 0,  tuberad, mainoutrad, -qbend, qbend+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)]);
+  rotate(-qbend) translate([tuberad, 0]) mirror([0,1])
+    square(center=false, size=[mainthick, qstemleny/cos(qbend)]);
+}
+
+module Plan(){
+  ClipPlan(bend,stemlen);
 }
 
 module ElevationCore(){
   FArcSegment(0, hookcy, hookinrad, hookoutrad,
              180 - ellowextra,
-             90 + hookcurl);
+             90 + hookcurl + ellowextra);
   translate([-hookoutrad*sqrt(0.5),
              hookcy - hookoutrad*sqrt(0.5) + 0.1])
     mirror([1,0])
@@ -109,5 +114,22 @@ module Hook(){ ////toplevel
   }
 }
 
+// frontbackly version, everything prefixed with f or F
+
+fstemleny = -hookcy;
+fbend = atan((tuberad - hookinrad) / fstemleny);
+
+module FPlan(){
+  ClipPlan(fbend, fstemleny);
+}
+
+// toplevels etc.
+
+module RightHook(){ ////toplevel
+  mirror([1,0,0]) Hook();
+}
+
+FPlan();
+translate([60,0,0]) Plan();
 //ElevationCore();
-Hook();
+//RightHook();