wardrobe-hook: tuning prototype

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

diff --git a/wardrobe-hook.scad b/wardrobe-hook.scad
index 7f29082cb2e736dc6cb840a203c8012faf0e28c0..c04496dcec32414fffe448d38c8d8a037fe7ec2e 100644 (file)
--- a/wardrobe-hook.scad
+++ b/wardrobe-hook.scad
@@ -1,5 +1,7 @@
 // -*- C -*-
 
 // -*- C -*-
 

+include <funcs.scad>
+

 module FArcSegment_mask(beta) {
   for (i=[0 : 0.75 : 3]) {
     rotate(i*beta/4)
 module FArcSegment_mask(beta) {
   for (i=[0 : 0.75 : 3]) {
     rotate(i*beta/4)


@@ -13,8 +15,8 @@ module FArcSegment(xc,yc,inrad,outrad,alpha,delta) {
   translate([xc,yc]) {
     intersection() {
       difference() {
   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);
       }
       rotate(alpha) scale(outrad*2) {
        FArcSegment_mask(delta);


@@ -23,8 +25,9 @@ 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;
 mainthick = 4;
 
 clipthick = 2;


@@ -42,12 +45,12 @@ tuberad = tubewidth/2;
 bend = atan(tuberad/stemlen);
 mainoutrad = tuberad + mainthick;
 hookoutrad = hookinrad + hookwidth;
 bend = atan(tuberad/stemlen);
 mainoutrad = tuberad + mainthick;
 hookoutrad = hookinrad + hookwidth;

-hookcy = stemlen - hookoutrad;
+hookcy = -(stemlen - hookoutrad);

 
 

-eltopx = topwidth/2;
-eltopy = -tuberad + tubeheight + mainthick + 1;
-elmidx = topwidth/2;
-elmidy = -tuberad;
+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);

 
 module Plan(){
   dy = tubeheight - tuberad*2;
 
 module Plan(){
   dy = tubeheight - tuberad*2;


@@ -59,12 +62,53 @@ module Plan(){
     square(center=false, size=[mainthick, stemlen/cos(bend)]);
 }
 
     square(center=false, size=[mainthick, stemlen/cos(bend)]);
 }
 

-module Elevation(){
-  FArcSegment(0, -hookcy, hookinrad, hookoutrad, 180, 90+hookcurl);
-  translate([-hookoutrad*sqrt(0.5), -(stemlen+10)]) mirror([1,0])
+module ElevationCore(){
+  FArcSegment(0, hookcy, hookinrad, hookoutrad,
+             180 - ellowextra,
+             90 + hookcurl);
+  translate([-hookoutrad*sqrt(0.5),
+             hookcy - hookoutrad*sqrt(0.5) + 0.1])
+    mirror([1,0])

     square(center=false, size=[topwidth, stemlen + tubeheight + 20]);
     square(center=false, size=[topwidth, stemlen + tubeheight + 20]);

+  polygon([[-hookoutrad, ellow[1]],
+          reflect_in_y(eltop),
+          eltop,
+          elmid,
+          ellow]);
+}
+
+// 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);
+  }

 }
 
 }
 

-Plan();
-translate([50,0])
-  Elevation();
+//ElevationCore();
+Hook();