fairphone-case: wip lanyard, demo the entry profile etc.

[reprap-play.git] / fairphone-case.scad

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 6a1aecd689c6cf22c122992af59d67ad7b09457d..1ed4614e5c0f5f0a870617de6b9e6ec03217fc16 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -450,7 +450,18 @@ cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
 
 ly_r = lanyard_half_dia / 2;
 ly_rc = ly_r * 2;
-ly_re = 10; // xxx
+
+ly_theta = -atan2vector(epp2i - epp1);
+ly_o = epp2i + 3 * ly_r * unitvector2d(epp1 - epp2i);
+
+max_case_bottom_edge_thickness =
+  case_th_bottom
+  + sin(ly_theta) * (epp2i-epp2o)[0];
+
+ly_q_z = -(ly_rc + ly_r);
+ly_re = max_case_bottom_edge_thickness - (-ly_q_z);
+
+ly_oec_y = lanyard_entry_rel_breadth * ly_r;
 
 // prop recess in case
 
@@ -554,11 +565,15 @@ module LanyardMainChannelProfile(){
   }
 }
 
+module LanyardEntryOuterProfile(){
+  circleat([ly_re + ly_r, 0], ly_re);
+}
+
 module LanyardEntry(){
-  q_z = -(ly_rc + ly_r);
-  d_x = -ly_rc;
+  q_z = ly_q_z;
+  oec_y = ly_oec_y;
 
-  oec_y = lanyard_entry_rel_breadth * ly_r;
+  d_x = -ly_rc;
 
   translate([d_x, 0, q_z]) {
     intersection(){
@@ -592,13 +607,23 @@ module LanyardEntry(){
       mirror([0,my,0]){
        translate([0, oec_y, 0]){
          difference(){
-           translate(ly_re * [-1,0,-1])
-             cube(ly_re * [2,1,1]);
+           translate(ly_re * [-1,0,-2])
+             cube(ly_re * [2,1,2]);
            rotate_extrude(convexity=10)
-             circleat([ly_re + ly_r, 0], ly_re);
+             LanyardEntryOuterProfile();
          }
        }
       }
+    difference(){
+      translate([-ly_re, -(oec_y + 0.01), -2*ly_re])
+       cube([ly_re*2, 2*(oec_y + 0.01), 2*ly_re]);
+      for (mx=[0,1])
+       mirror([mx,0,0])
+         rotate([90,0,0])
+         translate([0,0,-10])
+         linear_extrude(height=20)
+         LanyardEntryOuterProfile();
+    }
   }
 }
 
@@ -1638,14 +1663,20 @@ module DemoProfiles(){ ////toplevel
   %EdgeProfile();
   KeeperProfile();
   translate([0,0,-1]) color("black") KeeperProfile(1);
-  color("purple") translate(epp2i)
-    rotate(atan2vector(epp2i - epp1)) {
-    translate(lanyard_half_dia * 0.5 * [-3,-1])
-      LanyardLanyardProfile();
-    translate(lanyard_half_dia * 0.5 * [-3,+1])
-      translate([0,-1] * case_th_side)
-      LanyardLanyardProfile(true);
+  translate(ly_o){
+    rotate(-ly_theta){
+      translate([0,0,+1]) color("purple") LanyardMainChannelProfile();
+      translate([0,0,+2]) color("red") LanyardCurveChannelProfile();
+      translate([0, ly_q_z]){
+       translate([0,0,-1]) color("blue") LanyardEntryChannelProfile();
+       translate([ly_oec_y,0,-2]) color("black") LanyardEntryOuterProfile();
+      }
+    }
   }
+  translate([0,0,-5]) color("white") translate(epp2i)
+    rotate(-ly_theta)
+    rectfromto([-15, 0],
+              [+15, -max_case_bottom_edge_thickness]);
 
   translate([0,20]) {
     LanyardMainChannelProfile();