fairphone-case: wip lanyard, make ly_oec_y global (nfc)

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

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 9aa1862983a410df195d409003bcee2caa8d6532..723093bbb7daf953725450f51199f20c5643ae4a 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
 
@@ -559,10 +570,10 @@ module LanyardEntryOuterProfile(){
 }
 
 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(){
@@ -603,6 +614,16 @@ module LanyardEntry(){
          }
        }
       }
+    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();
+    }
   }
 }
 
@@ -1643,13 +1664,17 @@ module DemoProfiles(){ ////toplevel
   KeeperProfile();
   translate([0,0,-1]) color("black") KeeperProfile(1);
   color("purple") translate(epp2i)
-    rotate(atan2vector(epp2i - epp1)) {
+    rotate(-ly_theta) {
     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([0,0,-5]) color("white") translate(epp2i)
+    rotate(-ly_theta)
+    rectfromto([-15, 0],
+              [+15, -max_case_bottom_edge_thickness]);
 
   translate([0,20]) {
     LanyardMainChannelProfile();