X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=fairphone-case.scad;h=64c0fa20d4ce4b91052c8363a7c95cab9249b59f;hb=24bd1f90746c20560d369a4658da6f20fa0e70fd;hp=5df180bf1efc96ea346c6491ccb69db9b15c6313;hpb=c2f1c867edb4dbeae5775faafde63e3a1c015ffd;p=reprap-play.git

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 5df180b..64c0fa2 100644
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -1,8 +1,10 @@
 // -*- C -*-
 
+include <utils.scad>
+
 phone = [ 75.0, 145.0 ];
 
-bumper = [ 0.250, 0.250 ];
+bumper = [ 0.250, -0.025 ];
 // ^ One side.  Overall size is increased by twice this.
 // If no bumpers, is the gap around the phone.
 
@@ -24,6 +26,8 @@ jack_dia = 9.1 + .5; // some jack I had lying around
 noisecancelmic_pos = [ 19.54, 7.37 ];   // from rhs
 noisecancelmic_dia = 1.75;
 
+fingerpushhole_dias = [ 14, 17 ];
+
 rearspeaker_pos_bl = [ 14.92, 18.72 ];
 rearspeaker_size   = [  3.76,  7.36 ];
 
@@ -54,6 +58,14 @@ lid_gap_x = 0.25;
 lid_gap_z = 0.25;
 lid_lip = 1.75;
 
+foldover_gap = 0.50;
+foldover_lever_gap = 0.50;
+
+hingescrew_shaft_dia = 2.0 + 0.25; // M2 x 12mm machine screw
+hingescrew_nut_dia = 4.72 + 0.50; // washer, actually
+lever_cover_th = 0.75;
+hingemount_th = 2.5;
+
 $fa = 5;
 $fs = 0.1;
 
@@ -118,17 +130,22 @@ bppL = lpp10 + [5,0];
 bppK = [ bppL[0], bppN[1] ];
 bppJ = [ bppN[0], bppL[1] ];
 
-module rectfromto(a,b) {
-  ab = b - a;
-  translate([min(a[0], b[0]), min(a[1], b[1])])
-    square([abs(ab[0]), abs(ab[1])]);
-}
-module circleat(c,r) { translate(c) circle(r); }
-module linextr(z0,z1) {
-  translate([0,0,z0])
-    linear_extrude(height=z1-z0)
-    children();
-}
+// hinge plan
+hp_rn = hingescrew_nut_dia/2;
+hp_r2 = hp_rn + lever_cover_th;
+hp_rs = hingescrew_shaft_dia/2;
+hp_r1 = hp_rs + hingemount_th;
+
+hppU = lpp13;
+hppS = epp2o + [0,-1] * case_th_bottom;
+hp_k = 0.5 * (hppU[1] - hppS[1] + foldover_gap);
+
+hppM = [ epp4[0] - foldover_lever_gap - hp_r2,
+	 0.5 * (hppU + hppS)[1] ];
+hppT = hppM + 0.5 * [0,+1] * hp_k;
+hppB = hppM + 0.5 * [0,-1] * hp_k;
+
+// ---------- modules ----------
 
 module KeeperProfile(slant=0){
   use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope;
@@ -332,13 +349,25 @@ module Struts(x_start, z_min, th){
   }
 }
 
-module RearSpeakerAperture(){
-  CaseBase_rhsflip([1]) CaseBase_botflip([1])
+module OrdinaryRearAperture(rhs,bot, pos){
+  CaseBase_rhsflip(rhs) CaseBase_botflip(bot)
     linextr(-20, 20)
     mirror([0,1])
-    translate(rearspeaker_pos_bl + bumper)
+    translate(pos + bumper)
+    children();
+}
+
+module OrdinaryRearApertures(){
+  // rear speaker
+  OrdinaryRearAperture(1,1, rearspeaker_pos_bl)
     rectfromto(-rearspeaker_gap,
 	       rearspeaker_size + rearspeaker_gap);
+
+  // finger hole to remove phone
+  OrdinaryRearAperture(1,0, [ fingerpushhole_dias[0]/2 + epp2i[0],
+			      phone[1]/2 ])
+    scale(fingerpushhole_dias)
+    circle(r= 0.5 );
 }
 
 module RearCameraAperture(){
@@ -350,6 +379,49 @@ module RearCameraAperture(){
     rectfromto(camera_pos_tl, camera_pos_br);
 }
 
+module HingeLidProfile(){
+  hull(){
+    circleat(hppT, hp_r1);
+    circleat(lpp12, lp_r12);
+    polygon([lpp10,
+	     lpp13 + [2,0],
+	     lpp12,
+	     hppT]);
+  }
+}
+
+module HingeBaseProfile(){
+  difference(){
+    hull(){
+      circleat(hppB, hp_r1);
+      circleat(epp2o, case_th_bottom);
+      circleat(hppB + [10,0], hp_r1);
+    }
+    polygon([epp5, epp1, epp2i, epp3, bppL]);
+  }
+}
+
+module HingeLeverOuterProfile(){
+  hull(){
+    circleat(hppT, hp_r2);
+    circleat(hppB, hp_r2);
+  }
+}
+
+module HingeLeverInnerProfile(){
+  for (c = [hppT, hppB]) {
+    hull()
+      for (x=[0,20])
+	translate([x,0])
+	  circleat(c, hp_rn);
+	circleat(hppB, hp_rn);
+  }
+}
+
+module HingePortion(){
+  CaseBase_rhsflip();
+}
+
 module CaseBase(){
   AroundEdges(epp3[1], case_th_bottom, 1)
     EdgeProfile();
@@ -374,6 +446,9 @@ module Case(){ ////toplevel
 	  CaseBase_botflip()
 	  circleat([+1,-1] * phone_cnr_rad, phone_cnr_rad + case_th_side/2);
       }
+
+      // hinge
+      // HingePortion(hex20, hex21) HingerBaseProfile();
     }
 
     // slot for keeper
@@ -416,7 +491,7 @@ module Case(){ ////toplevel
     CaseBase_rhsflip([1])
       CaseAperture(noisecancelmic_pos, noisecancelmic_dia, 20);
 
-    RearSpeakerAperture();
+    OrdinaryRearApertures();
   }
 }
 
@@ -444,11 +519,23 @@ module Lid(){ ////toplevel
   }
 }
 
+module TestSelectLength(){
+  translate([-30, -200, -20])
+    cube([30 + 15, 250, 40]);
+}
+
 module TestLength(){ ////toplevel
   intersection(){
     Case();
-    translate([-30, -200, -20])
-    cube([30 + 15, 250, 40]);
+    TestSelectLength();
+  }
+}
+
+module TestLengthRight(){ ////toplevel
+  intersection(){
+    Case();
+    CaseBase_rhsflip(1)
+      TestSelectLength();
   }
 }
 
@@ -481,13 +568,16 @@ module TestSelectRearAperture(){
 }
 
 module TestSelectCamera(){
-  TestSelectRearAperture()
-    RearCameraAperture();
+  minkowski(){
+    TestSelectRearAperture()
+      RearCameraAperture();
+    cube([0.1, 50, 0.1]);
+  }
 }
 
-module TestSelectRearSpeaker(){
+module TestSelectOrdinaryRearApertures(){
   TestSelectRearAperture()
-    RearSpeakerAperture();
+    OrdinaryRearApertures();
 }
 
 module TestCamera(){ ////toplevel
@@ -547,7 +637,7 @@ module TestFrameCase(){ ////toplevel
     union(){
       TestSelectFrame();
       TestSelectCamera();
-      TestSelectRearSpeaker();
+      TestSelectOrdinaryRearApertures();
     }
   }
 }
@@ -593,6 +683,15 @@ module DemoProfiles(){ ////toplevel
     color("red" )  ButtonPlanForDemo(-4, 1,1);
     color("blue")  ButtonPlanForDemo(-6, 1,0);
   }
+
+  translate([0, -30]) {
+    %LidEdgeProfile();
+    %EdgeProfile();
+    color("blue") HingeLidProfile();
+    color("red")  HingeBaseProfile();
+    color("black") translate([0,0,-2]) HingeLeverOuterProfile();
+    color("orange") translate([0,0,-1]) HingeLeverInnerProfile();
+  }
 }
 
 //EdgeProfile();