// -*- C -*-
-phone_height = 146.5;
+phone_height = 146.5 - .80;
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 = [ 24.0, 39.5 ]; // 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_struts_count = 6;
+case_struts_solid_below = 0.75;
+case_struts_solid_above = 1.00;
+case_struts_width = 0.10;
+
keeper_th_z = 0.75;
keeper_th_x = 0.75;
-keeper_width = 2.5;
-keeper_height = 2.5;
+keeper_inner_width = 1.75;
+keeper_inner_height = 1.75;
keeper_gap_z_top = 0.25;
-keeper_gap_z_bot = 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
+// ---------- 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];
+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 ];
+lpp12 = [ epp4[0] + lid_lip, lpp11[1] ];
+lpp13 = [ lpp12[0], lpp12[1] + lid_lip ];
+
+// 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])])
}
module circleat(c,r) { translate(c) circle(r); }
+module KeeperProfile(){
+ polygon([kppe, 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);
rectfromto(epp0, epp4);
}
- %polygon([ epp5 + [0,10],
- epp1,
- epp2,
- epp3 + [10,0] ]);
+ polygon([ epp5 + [0,10],
+ epp1,
+ epp2i,
+ epp3 + [10,0] ]);
+ }
+}
+
+module LidEdgeProfile(){
+ polygon([ lpp10,
+ lpp11,
+ lpp12,
+ lpp13,
+ lpp13 + [10, 0],
+ lpp10 + [10, 0]
+ ]);
+ intersection(){
+ circleat(lpp12, r=lid_lip);
+ rectfromto( lpp12 + [-10, 0],
+ lpp12 + [+10, +10] );
+ }
+}
+
+module ButtonCoverProfile(){
+ intersection(){
+ polygon([ bppM, bppP, bppO, bppJ, bppL, bppK ]);
+ hull(){
+ EdgeProfile();
+ LidEdgeProfile();
+ }
}
}
-module CaseBase_rhsflip() {
- for (rhs=[0,1]) {
+module ButtonPlan(l, bigger){
+ C = [0,0]; // by definition
+ T = [ 0, epp4[1] ];
+ G = T + [0,10];
+ B0 = T + [0,-1] * button_cutout_depth;
+ r0 = 0.5 * (T[1] - B0[1]);
+ A = [ -l/2 + r0, 0.5 * (T[1] + B0[1]) ];
+ r1 = r0 + bigger;
+ // | D1 - A | = r1 * 2
+ // D1_y = T_y - r1
+ // => 4 * r1^2 = (r1-r0)^2 + (D1_x - A_x)^2
+ // => D1_x = A_x + v/~ [ 4 * r1^2 - (r1-r0)^2 ]
+ D1 = [ A[0] + sqrt( 4*r1*r1 - bigger*bigger ), T[1] - r1 ];
+ E1 = 0.5 * (D1 + A);
+ F1 = D1 + [0,10];
+
+ hull(){
+ for (m=[0,1]) mirror([m,0])
+ circleat(A, r1);
+ }
+ for (m=[0,1]) mirror([m,0]) {
+ difference(){
+ polygon([ E1,
+ A,
+ B0,
+ G,
+ F1,
+ D1
+ ]);
+ circleat(D1, r1);
+ }
+ }
+}
+
+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])
}
}
-module CaseBase(){
+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)
- EdgeProfile();
+ children(0);
}
+ // corners
CaseBase_rhsflip() CaseBase_botflip() {
translate([+1,-1] * phone_cnr_rad)
intersection(){
intersection(){
mirror([1,0,0])
translate([-1,0] * phone_cnr_rad)
- EdgeProfile();
+ 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)
- EdgeProfile();
+ 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 CaseBase(){
+ 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();
+
+ // 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)
+ for (i= [1 : 1 : case_struts_count]) {
+ translate([0,
+ -phone_height * i / (case_struts_count+1),
+ epp2i[1] - case_th_bottom + case_struts_solid_below])
+ linear_extrude(height= case_th_bottom
+ -(case_struts_solid_below+case_struts_solid_above))
+ rectfromto([ epp2i[0], -0.5 * case_struts_width ],
+ [ phone_width - epp2i[0], +0.5 * case_struts_width ]);
+ }
+ }
+}
+
+module Lid(){ ////toplevel
+ AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
+ LidEdgeProfile();
+}
+
+module TestLength(){ ////toplevel
+ intersection(){
+ Case();
+ translate([-30, -200, -20])
+ cube([30 + 15, 250, 40]);
+ }
+}
+
+module TestWidth(){ ////toplevel
+ intersection(){
+ Case();
+ translate([-30, -(phone_height - 25), -20])
+ mirror([0, 1, 0])
+ cube([200, 50, 40]);
+ }
+}
+
+module TestLidWidthPrint(){ ////toplevel
+ rotate([0,180.0])
+ intersection(){
+ Lid();
+ translate([-30, -(phone_height - 25), -20])
+ mirror([0, 1, 0])
+ cube([200, 50, 40]);
+ }
+}
+
+module TestCamera(){ ////toplevel
+ intersection(){
+ Case();
+ CaseBase_rhsflip(1)
+ translate([0,0,-25])
+ linear_extrude(height = 50)
+ mirror([0, 1, 0])
+ rectfromto([-20, -20],
+ camera_pos_br + [ 5, 5 ]);
+ }
+}
+
+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(colour, z, gap, overlap){
+ color(colour)
+ translate([0,0,z])
+ ButtonPlan(8,
+ lid_buttoncover_gap * gap +
+ lid_buttoncover_overlap * overlap);
+}
+
+module DemoProfiles(){ ////toplevel
+ LidEdgeProfile();
+ %EdgeProfile();
+ KeeperProfile();
+
+ 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([-40,0]) {
+ ButtonPlanForDemo("blue", 0, 0,0);
+ ButtonPlanForDemo("red", -1, 1,0);
+ ButtonPlanForDemo("yellow", -2, 0,1);
+ ButtonPlanForDemo("blue", -3, 1,1);
}
}
-EdgeProfile();
+//EdgeProfile();
+//KeeperProfile();
//CaseBase();
+//%Case();
+//Keeper();
+//LidEdgeProfile();
+//KeeperProfile();
+//DemoProfiles();