fairphone-case: wip hinge, HingerBaseProfile

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

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 7f4c096f84c2d4015cf787fe5b6f7bb53b029d56..da109ffd0f6fbc9ee8ecdd95be3589be93981594 100644 (file)
--- 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_hinger_gap = 0.50;
+
+hingescrew_shaft_dia = 2.0 + 0.25; // M2 x 12mm machine screw
+hingescrew_nut_dia = 4.72 + 0.50; // washer, actually
+hinger_th = 2;
+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 + hinger_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_hinger_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 +349,56 @@ 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(){
+  CaseBase_rhsflip([1])
+    mirror([0, 0, 1])
+    linear_extrude(height = 20)
+    mirror([0, 1, 0])
+    translate(bumper)
+    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 CaseBase(){
@@ -379,12 +439,7 @@ module Case(){ ////toplevel
       }
 
     // front camera
-    CaseBase_rhsflip([1])
-      mirror([0, 0, 1])
-      linear_extrude(height = 20)
-      mirror([0, 1, 0])
-      translate(bumper)
-      rectfromto(camera_pos_tl, camera_pos_br);
+    RearCameraAperture();
 
     // struts (invisible, because they're buried in the case)
     Struts(epp2i[0], epp2i[1] - case_th_bottom, case_th_bottom);
@@ -412,7 +467,7 @@ module Case(){ ////toplevel
     CaseBase_rhsflip([1])
       CaseAperture(noisecancelmic_pos, noisecancelmic_dia, 20);
 
-    RearSpeakerAperture();
+    OrdinaryRearApertures();
   }
 }
 
@@ -440,11 +495,23 @@ 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();
   }
 }
 
@@ -468,23 +535,27 @@ module TestLidWidthPrint(){ ////toplevel
   }
 }
 
-module TestSelectCamera(){
-  CaseBase_rhsflip(1)
-    translate([0,0,-25])
-    linear_extrude(height = 50)
-    mirror([0, 1, 0])
-    rectfromto([-20, -20],
-              camera_pos_br + bumper + [ 2, 2 ]);
-}
-
-module TestSelectRearSpeaker(){
+module TestSelectRearAperture(){
   minkowski(){
-    RearSpeakerAperture();
+    union() children();
     translate([20, 0,0])
       cube([42, 2, 1], center=true);
   }
 }
 
+module TestSelectCamera(){
+  minkowski(){
+    TestSelectRearAperture()
+      RearCameraAperture();
+    cube([0.1, 50, 0.1]);
+  }
+}
+
+module TestSelectOrdinaryRearApertures(){
+  TestSelectRearAperture()
+    OrdinaryRearApertures();
+}
+
 module TestCamera(){ ////toplevel
   intersection(){
     Case();
@@ -542,7 +613,7 @@ module TestFrameCase(){ ////toplevel
     union(){
       TestSelectFrame();
       TestSelectCamera();
-      TestSelectRearSpeaker();
+      TestSelectOrdinaryRearApertures();
     }
   }
 }
@@ -588,6 +659,13 @@ 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();
+  }
 }
 
 //EdgeProfile();