fairphone-case: Button cover

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

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 08de27d14fc134a7d9466a8e5315f349c4ccd840..c938f773b58a536fd8aca69c45016ce2143dd462 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -1,7 +1,7 @@
 // -*- C -*-
 
-phone_height = 146.5 - .80;
-phone_width = 76.75 - .50;
+phone_height = 146.5;
+phone_width = 76.75;
 
 phone_cnr_rad = 6.0;
 
@@ -150,43 +150,45 @@ module ButtonCoverProfile(){
 }
 
 module ButtonPlan(l, deep, cut){
-  bigger =
-    (deep ? lid_buttoncover_overlap : 0) +
-    (cut  ? 0 : -lid_buttoncover_gap);
-
-  d_D1_y =
+  epsilon =
     (cut  ? 0 : lid_buttoncover_gap);
 
+  delta =
+    (deep ? lid_buttoncover_overlap : 0);
+
   C = [0,0]; // by definition
   T = [ 0, epp4[1] ];
   G = T + [0,10];
+
   B0 = C + [0,-1] * button_cutout_depth;
   r0 = 0.5 * (T[1] - B0[1]);
   A = [  -(l + button_l_fudge)/2 + r0, 0.5 * (T[1] + B0[1]) ];
-  r1 = r0 + bigger;
-  // | D1 - A | = r1 * 2
-  // D1_y = T_y - r1 + d_D1_y
-  // =>    4 * r1^2   =  (r1-r0 + d_D1_y)^2 + (D1_x - A_x)^2
-  // =>    D1_x =  A_x + v/~ [  4 * r1^2   -   (r1-r0 + d_D1_y)^2 ]
-  D1  = [ A[0] - sqrt( 4*r1*r1 - pow(bigger + d_D1_y, 2) ),
-         T[1] - r1 + d_D1_y ];
-  E1  = 0.5 * (D1 + A);
-  F1  = D1 + [0,10];
+  H = A + [0,-1] * delta;
+
+  D = A + [-2,0] * r0;
+  F = D + [0,10];
+
+  E0 = 0.5 * (D + A);
+  E1 = E0 + [1,0] * epsilon;
+
+  I0 = [ E0[0], H[1] ];
+  I1 = [ E1[0], H[1] ];
 
   hull(){
     for (m=[0,1]) mirror([m,0])
-      circleat(A, r1);
+      circleat(H, r0 - epsilon);
   }
   for (m=[0,1]) mirror([m,0]) {
     difference(){
       polygon([ E1,
-               A,
+               I1,
+               H,
                B0,
                G,
-               F1,
-               D1
+               F,
+               D
                ]);
-      circleat(D1, r1);
+      circleat(D, r0 + epsilon);
     }
   }
 }
@@ -247,6 +249,16 @@ module AroundEdges(fill_zstart, fill_th, fill_downwards=0){
               [phone_width, -phone_height] + [-1,+1] * phone_cnr_rad);
 }
 
+module SideButton(y,l){
+  $button_l= l;
+  translate([0, -y, 0])
+    children();
+}
+
+module Buttons(){
+  CaseBase_rhsflip([1]) SideButton(20.6, 8.8) children(); // power
+}
+
 module Struts(x_start, z_min, th){
   // if th is negative, starts at z_min and works towards -ve z
   // and object should then be printed other way up
@@ -256,8 +268,8 @@ module Struts(x_start, z_min, th){
               z_min])
       mirror([0,0, th<0 ? 1 : 0])
       translate([0,
-              -phone_height * i / (case_struts_count+1),
-              case_struts_solid_below])
+                -phone_height * i / (case_struts_count+1),
+                case_struts_solid_below])
       linear_extrude(height= abs(th)
                     -(case_struts_solid_below+case_struts_solid_above))
       rectfromto([               x_start, -0.5 * case_struts_width ],
@@ -311,14 +323,38 @@ module Case(){ ////toplevel
 
     // struts (invisible, because they're buried in the case)
     Struts(epp2i[0], epp2i[1] - case_th_bottom, case_th_bottom);
+
+    Buttons(){
+      mirror([1,0,0])
+       rotate([90,0,90]) {
+         translate([0,0,-10])
+           linear_extrude(height= 20)
+           ButtonPlan($button_l, 0,1);
+         translate([0,0, -bppR[0]])
+           linear_extrude(height= 20)
+           ButtonPlan($button_l, 1,1);
+        }
+    }
   }
 }
 
 module Lid(){ ////toplevel
   difference(){
     union(){
-      %AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
+      AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
         LidEdgeProfile();
+      Buttons(){
+       intersection(){
+         rotate([90,0,90])
+           translate([0,0,-10])
+           linear_extrude(height= 20)
+           ButtonPlan($button_l, 0,1);
+         rotate([90,0,0])
+            translate([0,0,-100])
+           linear_extrude(height= 200)
+           ButtonCoverProfile();
+       }
+      }
     }
     Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid);
   }
@@ -380,9 +416,8 @@ module Keeper(){ ////toplevel
     OneKeeper();
 }
 
-module ButtonPlanForDemo(colour, z, deep, cut){
-  color(colour)
-    translate([0,0,z])
+module ButtonPlanForDemo(z, deep, cut){
+  translate([0,0,z])
     ButtonPlan(8, deep, cut);
 }
 
@@ -406,9 +441,9 @@ module DemoProfiles(){ ////toplevel
   }
 
   translate([-20,0]) {
-    ButtonPlanForDemo("grey", -1, 0,1);
-    ButtonPlanForDemo("blue", -2, 1,0);
-    ButtonPlanForDemo("red",  -3, 1,1);
+    color("black") ButtonPlanForDemo(-2, 0,1);
+    color("red" )  ButtonPlanForDemo(-4, 1,1);
+    color("blue")  ButtonPlanForDemo(-6, 1,0);
   }
 }