phone_height = 146.5;
phone_width = 76.75;
-phone_cnr_rad = 4.0;
+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 = [ 7.0, 13.0 ]; // measured from tl corner
+camera_pos_br = [ 22.85,37.85]; // tl/br as seen from back
-case_th_bottom = 2;
-case_th_lid = 2;
+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 = 4.5;
+
+strut_min_at_end = 1.5;
+
+// ---------- calculated ----------
+
+// ----- 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;
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]);
+
+lpp12 = [ epp4[0] + lp_r12, lpp11[1] ];
+lpp13 = [ lpp12[0], lpp12[1] + lp_r12 ];
+
+echo(lpp13 - lpp10);
-module rectfromto(a,b) { translate(a) square(b - a); }
+// 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 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 CaseBase_rhsflip(rhs) {
- translate([phone_width/2, -phone_cnr_rad, 0])
- mirror([rhs,0,0])
- translate([-phone_width/2,0,0])
+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 (rhs=yn) {
+ translate([phone_width/2, 0, 0])
+ mirror([rhs,0,0])
+ translate([-phone_width/2, 0, 0])
+ children();
+ }
+}
+
+module CaseBase_botflip() {
+ for (bot=[0,1]) {
+ translate([0, -phone_height/2, 0])
+ mirror([0, bot, 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 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
+ 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 CaseBase(){
- for (rhs=[0,1]) {
- CaseBase_rhsflip(rhs){
- 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
+ CaseBase_rhsflip([1])
+ mirror([0, 0, 1])
+ linear_extrude(height = 20)
+ mirror([0, 1, 0])
+ rectfromto(camera_pos_tl, camera_pos_br);
+
+ // 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($button_l, 1,1);
}
}
}
- translate([ phone_width - phone_cnr_rad, 0,0 ])
- rotate([90,0,-90])
- linear_extrude(height = phone_width - phone_cnr_rad*2)
- EdgeProfile();
+}
+
+module Lid(){ ////toplevel
+ difference(){
+ union(){
+ AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
+ LidEdgeProfile();
+
+ // button covers
+ Buttons(){
+ intersection(){
+ rotate([90,0,90])
+ translate([0,0,-10])
+ linear_extrude(height= 20)
+ ButtonPlan($button_l, 0,0);
+ 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]) TestLidWidth();
+}
+
+module TestSelectCamera(){
+ CaseBase_rhsflip(1)
+ translate([0,0,-25])
+ linear_extrude(height = 50)
+ mirror([0, 1, 0])
+ rectfromto([-20, -20],
+ camera_pos_br + [ 5, 5 ]);
+}
+
+module TestCamera(){ ////toplevel
+ intersection(){
+ Case();
+ TestSelectCamera();
+ }
+}
+
+module TestLidByCamera(){ ////toplevel
+ intersection(){
+ Lid();
+ TestSelectCamera();
+ }
+}
+
+module TestLidByCameraPrint(){ ////toplevel
+ rotate([180,0,0]) TestLidByCamera();
+}
+
+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 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);
+ }
}
//EdgeProfile();
-CaseBase();
+//KeeperProfile();
+//CaseBase();
+//%Case();
+//Keeper();
+//LidEdgeProfile();
+//KeeperProfile();
+//DemoProfiles();