chiark / gitweb /
fairphone-case: introduce TestSelectRearAperture (nfc)
[reprap-play.git] / fairphone-case.scad
index 0026d9dddc444fe34a212ee9cd57cd08020f7b39..20b809b15be6245a0c20d18593c5e0fbbe6eae40 100644 (file)
@@ -1,25 +1,82 @@
 // -*- C -*-
 
-phone_height = 146.5;
-phone_width = 76.75;
+phone = [ 75.0, 145.0 ];
 
-phone_cnr_rad = 4.0;
+bumper = [ 0.250, 0.250 ];
+// ^ One side.  Overall size is increased by twice this.
+// If no bumpers, is the gap around the phone.
+
+phone_cnr_rad = 6.0;
+
+button_cutout_depth = 9;
 
 phone_edge_thick = 9.0;
 phone_total_thick = 12.0;
-phone_backside_slope = 1.0; // larger means shallower
+phone_backside_slope_inner = 1.5; // larger means shallower
+phone_backside_slope_outer = 1.0; // larger means shallower
+
+camera_pos_tl = [  6.450, 12.750 ]; // measured from tl corner
+camera_pos_br = [ 22.300, 37.600 ]; // tl/br as seen from back
+
+jack_pos = [ 13.92, 7.96 ];
+jack_dia = 9.1 + .5; // some jack I had lying around
+
+noisecancelmic_pos = [ 19.54, 7.37 ];   // from rhs
+noisecancelmic_dia = 1.75;
 
-case_th_bottom = 2;
-case_th_lid = 2;
+rearspeaker_pos_bl = [ 14.92, 18.72 ];
+rearspeaker_size   = [  3.76,  7.36 ];
+
+case_th_bottom = 2.5;
+case_th_lid = 2.5;
 case_th_side = 2;
 case_th_lip = 1.2;
 
-case_lip = 2;
+case_struts_count = 6;
+case_struts_solid_below = 1.00;
+case_struts_solid_above = 0.75;
+case_struts_width = 0.10;
+
+keeper_th_z = 0.75;
+keeper_th_x = 0.75;
+keeper_inner_width = 2.75;
+keeper_inner_height = 2.75;
+keeper_slant_slope = 2; // larger means steeper
+
+keeper_gap_z_top = 0.25;
+keeper_gap_z_bot = 0.75;
+keeper_gap_x     = 0.25;
+keeper_gap_x_holes = 0.75;
+
+case_lip = 1.25;
+
+lid_gap_x = 0.25;
+lid_gap_z = 0.25;
+lid_lip = 1.75;
 
 $fa = 5;
 $fs = 0.1;
 
-// calculated
+button_l_fudge = 4.4;
+buttonishleg_default_l_is_fudge = 10;
+
+strut_min_at_end = 1.5;
+
+rearspeaker_gap    = [ 1.0, 1.0 ]; // each side
+
+// ---------- calculated ----------
+
+phone_width =  (phone + bumper*2)[0];
+phone_height = (phone + bumper*2)[1];
+
+inside_br = [phone_width, -phone_height];
+
+//echo(camera_pos_tl + bumper,
+//     camera_pos_br + bumper);
+
+// ----- could be changed -----
+lid_buttoncover_gap = lid_gap_x;
+lid_buttoncover_overlap = case_th_lip + keeper_gap_z_top;
 
 phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
 
@@ -28,61 +85,525 @@ phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
 
 epp0 = [0,0];
 epp1 = [0, -phone_edge_thick];
-epp2 = epp1 + phone_backside_slope_thick * [ phone_backside_slope, -1 ];
-epp3 = epp2 + [10, 0];
-epp4 = epp0 - [1,0] * (case_th_side - case_th_lip);
-epp5 = epp0 + [1,0] * case_lip;
-epp6 = epp5 + [0,1] * case_th_lip;
+epp2i = epp1 + phone_backside_slope_thick * [ phone_backside_slope_inner, -1 ];
+epp2o = epp1 + phone_backside_slope_thick * [ phone_backside_slope_outer, -1 ];
+epp3 = epp2i + [10, 0];
+epp5 = epp0 + [0,1] * (keeper_th_z + keeper_gap_z_top + case_lip);
+epp4 = epp5 + [-1,0] * case_th_side;
+
+kppe = [0,0];
+kppd = kppe + [1,0] * keeper_inner_width;
+kppc = kppd + [0,1] * keeper_th_z;
+kppb = [ kppe[0] - keeper_th_x, kppc[1] ];
+kppf = kppe - [0,1] * keeper_inner_height;
+kppa = [ kppb[0], kppf[1] ];
+
+lpp10 = [ epp5[0] + lid_gap_x, kppc[1] + lid_gap_z ];
+lpp11 = [ lpp10[0],            epp5[1] + lid_gap_z ];
+
+lp_r12 = case_th_lid - (lpp11[1] - lpp10[1]);
 
-module rectfromto(a,b) { translate(a) square(b - a); }
+lpp12 = [ epp4[0] + lp_r12,    lpp11[1] ];
+lpp13 = [ lpp12[0],            lpp12[1] + lp_r12 ];
+
+// button profile
+bppM = epp4 + [0,5];
+bppN = [ 0.5 * (epp0[0] + epp4[0]), bppM[1] ];
+bppR = [ bppN[0] + lid_buttoncover_gap, -button_cutout_depth ];
+bppS = [ epp1[0], bppR[1] ];
+bppQ = [ bppM[0], bppR[1] - lid_buttoncover_overlap ];
+bppP = bppQ + [0,1] * lid_buttoncover_gap;
+bppO = [ bppN[0], bppP[1] ];
+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();
+}
+
+module KeeperProfile(slant=0){
+  use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope;
+  polygon([use_e, kppd, kppc, kppb, kppa, kppf]);
+}
 
 module EdgeProfile(){
   difference(){
     hull(){
-      circleat(epp3, r=case_th_bottom);
-      circleat(epp2, r=case_th_bottom);
+      translate(epp3) square(case_th_bottom*2, center=true);
+      circleat(epp2o, r=case_th_bottom);
       circleat(epp1, r=case_th_side);
-      circleat(epp4, r=case_th_lip);
-      rectfromto(epp0, epp6);
+      rectfromto(epp0, epp4);
     }
-    polygon([ epp6 + [10,10],
-             epp6 + [0,10],
-             epp5,
-             epp0,
+    polygon([ epp5 + [0,10],
              epp1,
-             epp2,
+             epp2i,
              epp3 + [10,0] ]);
   }
 }
 
+module LidEdgeProfile(){
+  polygon([ lpp10,
+           lpp11,
+           lpp12,
+           lpp13,
+           lpp13 + [10, 0],
+           lpp10 + [10, 0]
+           ]);
+  intersection(){
+    circleat(lpp12, r=lp_r12);
+    rectfromto( lpp12 + [-10,   0],
+               lpp12 + [+10, +10] );
+  }
+}
+
+module ButtonCoverProfile(){
+  intersection(){
+    polygon([ bppM, bppP, bppO, bppJ, bppL, bppK ]);
+    hull(){
+      EdgeProfile();
+      LidEdgeProfile();
+    }
+  }
+}
+
+module ButtonPlan(l, deep, cut){
+  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;
+  B1 = B0 + [0,1] * epsilon;
+
+  r0 = 0.5 * (T[1] - B0[1]);
+  A = [  -(l + button_l_fudge)/2 + r0, 0.5 * (T[1] + B0[1]) ];
+  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(H, r0 - epsilon);
+  }
+  for (m=[0,1]) mirror([m,0]) {
+    difference(){
+      polygon([ E1,
+               I1,
+               H,
+               B1,
+               G,
+               F,
+               D
+               ]);
+      circleat(D, r0 + epsilon);
+    }
+  }
+}
+
+module CaseBase_rhsflip(yn=[0,1]) {
+  for ($rhsflip=yn) {
+    translate([phone_width/2, 0, 0])
+      mirror([$rhsflip,0,0])
+      translate([-phone_width/2, 0, 0])
+      children();
+  }
+}
+
+module CaseBase_botflip(yn=[0,1]) {
+  for ($botflip=yn) {
+    translate([0, -phone_height/2, 0])
+      mirror([0, $botflip, 0])
+      translate([0, phone_height/2, 0])
+      children();
+  }
+}  
+
+module AroundEdges(fill_zstart, fill_th, fill_downwards=0){
+  // sides
+  CaseBase_rhsflip(){
+    translate([0, -phone_cnr_rad, 0])
+      rotate([90,0,0])
+      linear_extrude(height = phone_height - phone_cnr_rad*2)
+      children(0);
+  }
+  // corners
+  CaseBase_rhsflip() CaseBase_botflip() {
+    translate([+1,-1] * phone_cnr_rad)
+      intersection(){
+       rotate_extrude()
+         intersection(){
+           mirror([1,0,0])
+             translate([-1,0] * phone_cnr_rad)
+             children(0);
+           rectfromto([0,-20],[10,20]);
+         }
+       translate([-10, 0, -20] + 0.01 * [+1,-1, 0] )
+         cube([10,10,40]);
+      }
+  }
+  // top and bottom
+  CaseBase_botflip(){
+    translate([ phone_width - phone_cnr_rad, 0,0 ])
+      rotate([90,0,-90])
+      linear_extrude(height = phone_width - phone_cnr_rad*2)
+      children(0);
+  }
+  // fill
+  translate([0,0, fill_zstart])
+    mirror([0,0, fill_downwards])
+    linear_extrude(height = fill_th)
+    rectfromto([+1,-1] * phone_cnr_rad,
+              [phone_width, -phone_height] + [-1,+1] * phone_cnr_rad);
+}
+
+module CaseAperture(pos, dia, $fn) {
+  theta = 180/$fn;
+  translate([ pos[0] + bumper[0],
+             -epp2i[0],
+             -pos[1] ])
+    rotate([-90, theta, 0])
+    cylinder(r = dia/2 / cos(theta),
+            h = 60);
+}
+
+module SideButton(y, y_ref_sign, l){
+  // y_ref_sign:
+  //   +1  measured from top    of actual phone to top    of button
+  //   -1  measured from bottom of actual phone to bottom of button
+  //    0  y is centre of button in coordinate system
+  $button_l= l;
+  eff_y = y_ref_sign > 0 ?         -bumper [1] -y -l/2 :
+         y_ref_sign < 0 ? (-phone -bumper)[1] +y +l/2 :
+         y;
+  echo(eff_y);
+  translate([0, eff_y, 0])
+    children();
+}
+
+module LidButtonishLeg(y, y_ref_sign, l=buttonishleg_default_l_is_fudge) {
+  $button_leg_only = true;
+  SideButton(y, y_ref_sign, l) children();
+}
+
+module Buttons(){
+  CaseBase_rhsflip([1]) SideButton(15.580, +1, 8.9) children(); // power
+  CaseBase_rhsflip([1]) SideButton(48.700, -1, 8.920) children(); // camera
+  CaseBase_rhsflip([0]) SideButton(30.800, +1, 21.96) children(); // volume
+  CaseBase_rhsflip(   ) LidButtonishLeg(20, -1) children();
+//  CaseBase_rhsflip([0]) LidButtonishLeg(20, +1, 20) children();
+}
+
+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
+  for (i= [1 : 1 : case_struts_count]) {
+    translate([0,
+              0,
+              z_min])
+      mirror([0,0, th<0 ? 1 : 0])
+      translate([0,
+                -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 ],
+                [ phone_width - x_start, +0.5 * case_struts_width ]);
+  }
+}
+
+module RearSpeakerAperture(){
+  CaseBase_rhsflip([1]) CaseBase_botflip([1])
+    linextr(-20, 20)
+    mirror([0,1])
+    translate(rearspeaker_pos_bl + bumper)
+    rectfromto(-rearspeaker_gap,
+              rearspeaker_size + rearspeaker_gap);
+}
+
+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 CaseBase(){
-  for (rhs=[0,1]) {
-    translate([phone_width/2, -phone_cnr_rad, 0])
-      mirror([rhs,0,0])
-      translate([-phone_width/2,0,0]) {
-        rotate([90,0,0])
-          linear_extrude(height = phone_height - phone_cnr_rad)
-         EdgeProfile();
-      translate([+1,0] * phone_cnr_rad)
-       intersection(){
-         rotate_extrude()
-           intersection(){
-             mirror([1,0,0])
-               translate([-1,0] * phone_cnr_rad)
-               EdgeProfile();
-             rectfromto([0,-20],[10,20]);
-           }
-         translate([-10, 0, -20] + 0.01 * [+1,-1, 0] )
-           cube([10,10,40]);
+  AroundEdges(epp3[1], case_th_bottom, 1)
+    EdgeProfile();
+}
+
+module Case(){ ////toplevel
+  difference(){
+    union(){
+      CaseBase();
+
+      // ledge (fixed keeper)
+      intersection(){
+       rotate([90, 0, 0])
+         linear_extrude(height = phone_height + phone_cnr_rad * 2)
+         KeeperProfile(1);
+
+       // outline of the whole case, to stop it protruding
+       translate([0,0, -25])
+         linear_extrude(height = 50)
+         hull()
+         // CaseBase_rhsflip() // actually, we only care about the LH
+         CaseBase_botflip()
+         circleat([+1,-1] * phone_cnr_rad, phone_cnr_rad + case_th_side/2);
+      }
+    }
+
+    // slot for keeper
+    CaseBase_rhsflip(1)
+      translate([0, -phone_cnr_rad, 0])
+      rotate([90, 0, 0])
+      linear_extrude(height = phone_height + phone_cnr_rad * 2)
+      minkowski(){
+        KeeperProfile();
+       rectfromto([ -keeper_gap_x,    -keeper_gap_z_bot ],
+                  [ keeper_gap_x_holes,    +keeper_gap_z_top ]);
+      }
+
+    // front camera
+    RearCameraAperture();
+
+    // 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]) {
+         intersection(){
+           translate([0,0,-10])
+             linear_extrude(height= 20)
+             ButtonPlan($button_l, 0,1);
+           if ($button_leg_only)
+             rotate([-90,90,0])
+               translate([phone_width/2, -400, kppe[1]])
+               mirror([$rhsflip,0,0]) cube([400, 800, 50]);
+         }
+         translate([0,0, -bppR[0]])
+           linear_extrude(height= 20)
+           ButtonPlan($button_l, 1,1);
         }
+    }
+
+    // apertures along top edge
+    CaseAperture(jack_pos, jack_dia, 8);
+    CaseBase_rhsflip([1])
+      CaseAperture(noisecancelmic_pos, noisecancelmic_dia, 20);
+
+    RearSpeakerAperture();
+  }
+}
+
+module Lid(){ ////toplevel
+  difference(){
+    union(){
+      AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
+        LidEdgeProfile();
+
+      // button covers
+      Buttons(){
+       intersection(){
+         rotate([90,0,90])
+           translate([0,0,-10])
+           linear_extrude(height= 20)
+           ButtonPlan($button_l, 1,0);
+         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);
+  }
+}
+
+module TestLength(){ ////toplevel
+  intersection(){
+    Case();
+    translate([-30, -200, -20])
+    cube([30 + 15, 250, 40]);
+  }
+}
+
+module TestSelectWidth(){
+  translate([-30, -(phone_height - 25), -20])
+    mirror([0, 1, 0])
+    cube([200, 50, 40]);
+}
+
+module TestWidth(){ ////toplevel
+  intersection(){
+    Case();
+    TestSelectWidth();
+  }
+}
+
+module TestLidWidthPrint(){ ////toplevel
+  rotate([0,180.0]) intersection(){
+    Lid();
+    TestSelectWidth();
+  }
+}
+
+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 TestSelectRearAperture(){
+  minkowski(){
+    union() children();
+    translate([20, 0,0])
+      cube([42, 2, 1], center=true);
+  }
+}
+
+module TestSelectRearSpeaker(){
+  TestSelectRearAperture()
+    RearSpeakerAperture();
+}
+
+module TestCamera(){ ////toplevel
+  intersection(){
+    Case();
+    TestSelectCamera();
+  }
+}
+
+module TestLidByCamera(){ ////toplevel
+  intersection(){
+    Lid();
+    TestSelectCamera();
+  }
+}
+
+module TestLidByCameraPrint(){ ////toplevel
+  rotate([180,0,0]) TestLidByCamera();
+}
+
+module DemoByCamera(){ ////toplevel
+  color("blue") TestLidByCamera();
+  color("red")  TestCamera();
+}
+
+module OneKeeper(){ ////toplevel
+  translate([0, -phone_cnr_rad, 0])
+    rotate([90, 0, 0])
+    linear_extrude(height = phone_height - phone_cnr_rad * 2)
+    KeeperProfile();
+}
+
+module OneKeeperPrint(){ ////toplevel
+  rotate([0,180,0])
+    OneKeeper();
+}
+
+module LidPrint(){ ////toplevel
+  rotate([0,180,0])
+    Lid();
+}
+
+module TestSelectFrame(){
+  include = [1,-1] * (epp2i[0] + 4);
+
+  difference(){
+    cube(1000, center=true);
+    translate([0,0, -100])
+      linear_extrude(height=200)
+      rectfromto(include,  inside_br - include);
+  }
+}
+
+module TestFrameCase(){ ////toplevel
+  intersection(){
+    Case();
+    union(){
+      TestSelectFrame();
+      TestSelectCamera();
+      TestSelectRearSpeaker();
+    }
+  }
+}
+
+module TestFrameLidPrint(){ ////toplevel
+  rotate([0,0,180]) intersection(){
+    Lid();
+    TestSelectFrame();
+  }
+}
+
+module Keeper(){ ////toplevel
+  CaseBase_rhsflip()
+    OneKeeper();
+}
+
+module ButtonPlanForDemo(z, deep, cut){
+  translate([0,0,z])
+    ButtonPlan(8, deep, cut);
+}
+
+module DemoProfiles(){ ////toplevel
+  LidEdgeProfile();
+  %EdgeProfile();
+  KeeperProfile();
+  translate([0,0,-1]) color("black") KeeperProfile(1);
+
+  translate([20,0]) {
+    LidEdgeProfile();
+    %EdgeProfile();
+
+    demopoint_QR = [ bppS[0], bppQ[1] - 0.1];
+  
+    color("blue") ButtonCoverProfile();
+    color("red") {
+      rectfromto(bppQ, demopoint_QR);
+      rectfromto(bppR, demopoint_QR);
+    }
+  }
+
+  translate([-20,0]) {
+    color("black") ButtonPlanForDemo(-2, 0,1);
+    color("red" )  ButtonPlanForDemo(-4, 1,1);
+    color("blue")  ButtonPlanForDemo(-6, 1,0);
   }
-  translate([ phone_width - phone_cnr_rad, 0,0 ])
-    rotate([90,0,-90])
-    linear_extrude(height = phone_width - phone_cnr_rad*2)
-    EdgeProfile();
 }
 
 //EdgeProfile();
-CaseBase();
+//KeeperProfile();
+//CaseBase();
+//%Case();
+//Keeper();
+//LidEdgeProfile();
+//KeeperProfile();
+//DemoProfiles();