3 // Hard case for Fairphone 2
5 // Copyright 2018 Ian Jackson. There is NO WARRANTY.
6 // See below for full licensing and disclaimer.
10 // 1. You will want to git clone this repository.
12 // 2. Decide about the notification LED aperture. See the variable
13 // led_window_style, below. The default here is "ad-hoc
14 // multi-colour", which can produces a translucent (clear-ish)
15 // window set into the lid, even on a single-nozzle printer.
16 // See "Ad-hoc multi-colour", below.
18 // 3. use "make" to generate the necessary files:
20 // make -j8 fairphone-case.auto.scads `for f in \
26 // ; do echo fairphone-case,$f.auto.stl; done`
28 // 4. Print them. Case and OneKeeperPrint should probably be
31 // For Lid and LidWindowPrint, if you are doing ad-hoc
33 // i. Set up for clear filament
34 // ii. Print LidWindowPrint. Wait for it to finish.
35 // It won't take long. As soon as it finishes, tell
36 // your printer to warm up (so that in fact it does
38 // iii. Leaving the output so far on the printbed, reload
39 // your printer with the main lid colour.
40 // iv. Print LidPrint. You can let this go unattended.
42 // 5. Assemble the hinge. You will need 4x M2 12mm machine screws
43 // and 8x M2 full nuts.
45 // Make sure you get the hinge the right way round. If you're not
47 // openscad fairphone-case,DemoHinge.auto.scad
48 // to see an assembly diagram.
50 // The nuts recess into the hinge. You will want very fine
51 // pliers. As you screw each screw in, add the second nut when
52 // the screw thread emerges from the first - this will be a
53 // locknut. Screw each screw to an appropriate tightness for the
54 // hinge stiffness. You want the lid-side hinge to be stiffer as
55 // that makes closing the case work better.
57 // When you have the stiffness right, tighten the locknuts onto
62 // - To put the phone in, drop its RH side into the RH side of
63 // the case. Then feed the keeper through the small hole.
64 // Feed it right through.
66 // - The optional prop can be used to prop the phone up (in
67 // portrait orientation only right now). See
68 // openscad fairphone-case,DemoPropAngles.auto.scad
70 // Ad-hoc multi-colour
72 // This file is set up to let you make a translucent window using a
73 // single-extruder printer, using a "two print run" technique. This
74 // works well with our Lulzbot TAZ 5 and Aleph Objects' version of
75 // Cura. If you are using a different printer, you may need to
76 // adjust the parameters or try a different technique. In particular,
77 // initial_layer_thick
78 // set so that the window is one layer thick
79 // initial_layer_width
80 // set so that the slicer draws a rectangle around the whole
81 // object, rather than putting a "skirt" or anything inside
83 // If you have a dual-extruder printer, you can set led_window_style
84 // to 2 and do a single print of LidPrint and LidWindowPrint.
86 // Alternatively you can set it to 1 (just a hole) or 0 (no hole).
88 // Thanks to Clare Boothby for the ad-hoc multi-colour technique (and
89 // the parameters for our Lulzbot TAZ 5 and Aleph Objects's Cura).
93 // It might well be possible to adapt this file for other phones.
94 // If you do, let me know how you get on.
97 // AUTHORSHIP, COPYRIGHT, LICENCE, AND LACK OF WARRANTY
99 // Copyright (C)2018 Ian Jackson.
101 // This program for generating a 3D model is free software: you can
102 // redistribute it and/or modify it under the terms of the GNU
103 // General Public License as published by the Free Software
104 // Foundation, either version 3 of the License, or (at your option)
105 // any later version.
107 // This program is distributed in the hope that it will be useful,
108 // but WITHOUT ANY WARRANTY; without even the implied warranty of
109 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
110 // GNU General Public License for more details.
112 // You should have received a copy of the GNU General Public
113 // License along with this program. If not, see
114 // <http://www.gnu.org/licenses/>.
116 // In particular DO NOT BLAME ME IF THIS CASE DOES NOT ADEQUATELY
117 // PROTECT YOUR PHONE ! It is your responsibility to decide whether
118 // this case will meet your needs.
123 phone = [ 75.0, 145.0 ];
125 prop_buildout_less = 3;
127 prop_angles = [ 15, 30, 45, 60 ];
129 bumper = [ 0.250, -0.025 ];
130 // ^ One side. Overall size is increased by twice this.
131 // If no bumpers, is the gap around the phone.
135 led_window_style = 3;
137 // 1: simply an opening
138 // 2: opening with separate cover model, for printing in clear (two colour)
139 // 3: like 2 but one-layer window for ad-hoc multi-colour
141 initial_layer_thick = 0.400; // ^ needed for mode 3 only
142 initial_layer_width = 0.750; // ^ needed for mode 3 only
143 multicolour_gap = 0.15; // each side
146 phone_rim_depth = 0.80; // includes allowance for a screen protector
148 button_cutout_depth = 9;
150 phone_edge_thick = 9.0;
151 phone_total_thick = 12.0;
152 phone_backside_slope_inner = 1.5; // larger means shallower
153 phone_backside_slope_outer = 1.0; // larger means shallower
155 camera_pos_tl = [ 6.450, 12.750 ]; // measured from tl corner
156 camera_pos_br = [ 22.300, 37.600 ]; // tl/br as seen from back
158 jack_pos = [ 13.83, 8.485 ];
159 jack_dia = 10.64 + .5; // some jack I had lying around
161 led_pos = [ 13.98, 10.00 ];
163 led_window_ledge = 0.75; // each side
165 noisecancelmic_pos = [ 19.54, 7.37 ]; // from rhs
166 noisecancelmic_dia = 4.00;
168 //fingerpushhole_dias = [ 15, 18 ];
169 fingerpushhole_dias = [];
171 lanyard_half_dia = 1.15;
173 rearspeaker_pos_bl = [ 12.64, 18.72 ];
174 rearspeaker_size = [ 3.76, 7.36 ];
176 microusb_above = 3.27 - 0.25;
177 microusb_below = 0.0;
178 microusb_width = 16.12 + 1.25;
180 case_th_bottom = 2.5;
185 lid_screen_gap_extra = .66;
187 case_struts_count = 6;
188 case_struts_solid_below = 1.00;
189 case_struts_solid_above = 0.75;
190 case_struts_width = 0.10;
194 keeper_inner_width = 2.75;
195 keeper_inner_height = 2.75;
196 keeper_slant_slope = 2; // larger means steeper
198 keeper_gap_z_top = 0.25;
199 keeper_gap_z_bot = 0.75;
201 keeper_gap_x_holes = 0.75;
203 keeper_side = 0; // 0 = lhs; 1 = rhs
210 lid_edgepart_width = 5.0;
211 lid_buttoncover_thick = 1.3;
216 foldover_lever_gap = 0.50;
218 // properties of the hinge fasteners
219 hingescrew_shaft_dia = 2.0 + 0.25; // M2 x 12mm machine screw
220 hingescrew_shaft_len = 12;
221 hingescrew_fasteners_extra_thick = 0.40;
222 // ^ amount of thread protruding if everything was completely nominal
223 // and we are using two nuts
224 hingescrew_nut_access_dia = 4.72 + 0.50;
225 // ^ washer is 4.72 dia
226 // also, want to get pliers or tiny spanner in to do up locknut
227 hingescrew_nut_across = 3.92 + 0.25; // incl. slop around recess slop
228 hingescrew_nut_thick = 1.93;
229 hingescrew_head_th = 1.38 + 0.75;
230 hingescrew_head_dia = 3.92;
232 hingescrew_nut_recess_portion = 2/3; // portion of nut in recess
234 lever_cover_th = 0.75;
236 hingemount_wd = 4.8725;
241 button_l_fudge = 4.4;
242 buttonishleg_default_l_is_fudge = 10;
244 hinge_base_slope = 1.5; // bigger is steeper
246 strut_min_at_end = 1.5;
249 hinge_x_postscrew_gap = 0.75;
250 hinge_x_arms_gap = 0.35;
251 hinge_r_arms_gap = 0.55;
253 rearspeaker_gap = [ 2.0, 2.0 ]; // each side
257 catch_thickness = 1.0;
258 catch_side_gap = 0.75; // each side
262 catch_finger_height = 1.5;
263 catch_finger_depth = 2.5;
265 catch_topcurve_r = 5.0;
267 prop_recess_under = 0.50;
268 prop_recess_slop = 0.200; // each side
273 prop_side_gap = 0.75; // each side
274 prop_lidrecess_behind = 0.75;
275 prop_caserecess_behind = 0.75;
276 prop_caserecess_taper = 0.45; // one side only
278 prop_prong_heel_slope = 0.5;
280 lid_fold_clearance_antislop = 0.5;
282 // ---------- calculated ----------
284 phone_width = (phone + bumper*2)[0];
285 phone_height = (phone + bumper*2)[1];
287 inside_br = [phone_width, -phone_height];
289 prop_prong_h = prop_main_th;
291 //echo(camera_pos_tl + bumper,
292 // camera_pos_br + bumper);
294 // ----- could be changed -----
295 lid_buttoncover_gap = lid_gap_x;
296 lid_buttoncover_overlap = case_th_lip + keeper_gap_z_top;
298 phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
300 //prop_lidrecess_depth = case_th_lid - prop_recess_under;
302 //prop_nose_len = case_th_lid - prop_recess_under;
303 //prop_recess_slope = tan(prop_max_angle); // bigger means steeper
304 //prop_recess_width = prop_main_th / cos(prop_max_angle) + prop_backfwd_gap;
307 //lid_lip_overlap_width xxx bad name = ;
308 //lid_lip_inner_slope = [ 5, 5 ]; // xxx
311 epp1 = [0, -phone_edge_thick];
312 epp2i = epp1 + phone_backside_slope_thick * [ phone_backside_slope_inner, -1 ];
313 epp2o = epp1 + phone_backside_slope_thick * [ phone_backside_slope_outer, -1 ];
314 epp3 = epp2i + [10, 0];
315 epp5 = epp0 + [0,1] * (keeper_th_z + keeper_gap_z_top + case_lip);
316 epp4 = epp5 + [-1,0] * case_th_side;
319 kppd = kppe + [1,0] * keeper_inner_width;
320 kppc = kppd + [0,1] * keeper_th_z;
321 kppb = [ kppe[0] - keeper_th_x, kppc[1] ];
322 kppf = kppe - [0,1] * keeper_inner_height;
323 kppa = [ kppb[0], kppf[1] ];
325 lpp10 = [ epp5[0] + lid_gap_x, kppc[1] + lid_gap_z ];
326 lpp11 = [ lpp10[0], epp5[1] + lid_gap_z ];
328 lpp14 = lpp10 + [1,0] * max(keeper_inner_width, lid_edgepart_width);
329 // exact x posn not very important; must extend past end of keeper
332 epp0[1] - phone_rim_depth + 1/2.5 * case_th_lid
333 + lid_screen_gap_extra ];
334 // ^ beam theory says to maximise force before contact,
335 // the gap below the `beam' (the lid) must be 1/3
336 // the thickness (ie the lid thickness) if the beam
337 // is solid, or 1/2 if it has a top and bottom only.
338 // ours is mostly solid.
340 lp_r12 = max(case_th_lid - (lpp11[1] - lpp15[1]),
343 lpp12 = [ epp4[0] + lp_r12, lpp11[1] ];
344 lpp13 = [ lpp12[0], lpp12[1] + lp_r12 ];
346 case_bottom_z = epp2o[1] - case_th_bottom;
350 bppN = [ bppM[0] + lid_buttoncover_thick, bppM[1] ];
351 bppR = [ bppN[0] + lid_buttoncover_gap, -button_cutout_depth ];
352 bppS = [ epp1[0], bppR[1] ];
353 bppQ = [ bppM[0], bppR[1] - lid_buttoncover_overlap ];
354 bppP = bppQ + [0,1] * lid_buttoncover_gap;
355 bppO = [ bppN[0], bppP[1] ];
356 bppL = lpp10 + [5,0];
357 bppK = [ bppL[0], bppN[1] ];
358 bppJ = [ bppN[0], bppL[1] ];
359 bppU = [ bppJ[0], lpp12[1] ];
363 echo("BUTTON COVER TH", bppO[0] - bppP[0]);
365 // notification led aperture
367 nla_r0 = led_aperture/2;
368 nla_r1 = nla_r0 + led_window_ledge;
369 nla_r2 = nla_r1 + multicolour_gap;
371 led_window_style >= 3 ? initial_layer_thick :
372 led_window_style >= 2 ? led_window_ledge : 0;
376 hp_rn = hingescrew_nut_access_dia/2;
377 hp_r2_min = hp_rn + lever_cover_th;
378 hp_rs = hingescrew_shaft_dia/2;
379 hp_r1_min = hp_rs + hingemount_th;
381 hp_r1 = max(hp_r1_min, hp_r2_min);
385 hppS = epp2o + [0,-1] * case_th_bottom;
386 hp_k = 0.5 * (hppU[1] - hppS[1] + foldover_gap);
388 hppM = [ epp4[0] - foldover_lever_gap - hp_r2,
389 0.5 * (hppU + hppS)[1] ];
390 hppT = [ hppM[0], hppU[1] - hp_r1 ];
391 hppB = hppT + [0,-1] * hp_k;
393 hppE_y = epp2o[1] - case_th_bottom + hp_r1;
394 hppE_x = hppB[0] + (hppB[1] - hppE_y) * hinge_base_slope;
395 hppE = [ hppE_x, hppE_y ];
397 // hinge elevation x coords
399 hex20 = max(epp2o[0],
401 kppd[0] + hingescrew_head_th + keeper_gap_x_holes);
402 hex21 = hex20 + hingemount_wd;
403 hex22 = hex21 + hinge_x_gap;
404 hex27 = hex20 + hingescrew_shaft_len;
405 hex24 = hex27 + hinge_x_postscrew_gap;
406 hex23 = hex27 - (hingescrew_nut_thick*2
407 + hingescrew_fasteners_extra_thick);
408 hex26 = hex23 + hingescrew_nut_thick * 2/3;
410 echo(hex20, hex21, hex22, hex23, hex24);
411 // 6, 10.8725, 10.9975, 13.74, 18.75
412 module chk(act,exp) {
413 if (abs(act-exp) > 1e-9) echo("WRONG", act, exp);
414 else echo("ok", act);
422 lid_fold_clearance_skew =
423 (lpp10[1] - hppB[1]) /
424 (lpp10[0] - hppB[0]);
426 echo("SK",lid_fold_clearance_skew);
430 cppJ = [ epp4[0] + catch_thickness, lpp10[1] ];
431 cppA = cppJ + [lid_gap_x, -lid_gap_z];
432 cppB = [ epp0[0], cppA[1] ];
433 cppP = [ epp4[0], cppJ[1] ];
435 cppS = cppJ + [0,-1] * catch_len;
436 cppD = [ cppA[0], cppS[1] + catch_slop ];
437 cppC = [ cppB[0], cppD[1] ];
438 cppT = cppS + [1,0] * catch_depth;
439 cppU = cppT + [0,-1] * catch_height;
440 cppV = [ cppS[0], cppU[1] - catch_depth ];
442 cppR = 0.5*(cppP + cppJ);
444 cp_rQ = 0.5 * (cppJ[0] - cppP[0]);
446 cppV[1] - (catch_finger_height - cp_rQ) ];
447 cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
451 ly_r = lanyard_half_dia / 2;
453 // prop recess in case
455 prop_x_pos = phone_width/2;
457 prop_recess_hw = 0.5 * prop_main_width + prop_side_gap;
459 prc_r1 = prop_end_dia/2;
460 prc_r3 = prc_r1 + prop_recess_slop;
462 prcp2 = [ epp4[0] + prop_buildout_less,
465 prop_caserecess_buildout_r = -1; // prcp2[0] - epp2o[0];
467 prcp1 = [ epp2o[0] + prc_r3 + prop_caserecess_behind,
468 epp2i[1] - prc_r3 - prop_recess_under];
470 // prop recess in lid
472 prl_r10 = prop_end_dia/2;
473 prl_r10o = prl_r10 + prop_recess_slop;
475 prlp10 = lpp10 + [1,1] * prl_r10o
476 + [1,0] * prop_lidrecess_behind
477 + [0,1] * prop_recess_under;
482 $prpp11 = [0, prop_taper_len];
486 // ---------- modules ----------
488 module AdhocMultiprintFrame(phase, z0, zs) {
489 // from z0 to z0 + zs*layer
490 extra = phase * (initial_layer_width + multicolour_gap) + 5;
491 xextra = extra + -epp4[0];
492 xrange = [ 0, phone_width ] + [-1,+1] * xextra;
493 yextra = extra + -epp4[0];
494 yrange = [ -phone_height + +hppB[0] - hp_r2, 0 ] + [-1,+1] * yextra;
495 p0 = [ xrange[0], yrange[0] ];
496 p1 = [ xrange[1], yrange[1] ];
499 mirror([0,0, zs<0 ? 1 : 0])
500 linear_extrude(height= initial_layer_thick)
502 rectfromto(p0 - [1,1] * initial_layer_width,
503 p1 + [1,1] * initial_layer_width);
508 module KeeperProfile(slant=0){
509 use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope;
510 polygon([use_e, kppd, kppc, kppb, kppa, kppf]);
513 module EdgeProfile(){
516 translate(epp3) square(case_th_bottom*2, center=true);
517 circleat(epp2o, r=case_th_bottom);
518 circleat(epp1, r=case_th_side);
519 rectfromto(epp0, epp4);
521 polygon([ epp5 + [0,10],
528 module LanyardLanyardProfile(entry=false){
530 for (xs=[-1,+1] * (entry ? 2 : 1))
531 translate(xs * 0.5 * lanyard_half_dia * [1,0])
532 circle(r= lanyard_half_dia/2);
536 module LanyardCurveChannelProfile(){
537 translate([0, -ly_r])
538 LanyardLanyardProfile();
541 module LanyardEntryChannelProfile(){
542 translate([0, -ly_r])
543 LanyardLanyardProfile(true);
546 module LanyardMainChannelProfile(){
547 LanyardCurveChannelProfile();
549 square(center=true, ly_r * [6, 2]);
551 translate(ly_r * [3 * xs, -1])
556 module LidEdgeProfile(){
567 circleat(lpp12, r=lp_r12);
568 rectfromto( lpp12 + [-10, 0],
569 lpp12 + [+10, +10] );
573 module LidEdgeFoldClearanceProfile(){
574 translate([-lid_fold_clearance_antislop, 0])
583 module ButtonCoverProfile(){
585 polygon(concat([ bppM, bppP, bppO, bppJ ],
586 (enable_support && !$button_suppress_over_keeper
587 ? [ bppU, bppV, bppW ] : []),
596 module ButtonPlan(l, deep, cut){
598 (cut ? 0 : lid_buttoncover_gap);
601 (deep ? lid_buttoncover_overlap : 0);
603 C = [0,0]; // by definition
607 B0 = C + [0,-1] * button_cutout_depth;
608 B1 = B0 + [0,1] * epsilon;
610 r0 = 0.5 * (T[1] - B0[1]);
611 A = [ -(l + button_l_fudge)/2 + r0, 0.5 * (T[1] + B0[1]) ];
612 H = A + [0,-1] * delta;
618 E1 = E0 + [1,0] * epsilon;
620 I0 = [ E0[0], H[1] ];
621 I1 = [ E1[0], H[1] ];
624 for (m=[0,1]) mirror([m,0])
625 circleat(H, r0 - epsilon);
627 for (m=[0,1]) mirror([m,0]) {
637 circleat(D, r0 + epsilon);
642 module CatchCatchProfile(){
644 for (c=[ cppR, cppQ ])
648 circleat(lpp12, lp_r12);
649 circleat(lpp12 + [5,0], lp_r12);
650 rectfromto(cppP, cppP + [5,0.1]);
652 polygon([cppJ, cppS, cppT, cppU, cppV, cppQ, cppR]);
655 module CatchCutProfile(){
667 module Flip_rhs(yn=[0,1]) {
669 translate([phone_width/2, 0, 0])
670 mirror([$rhsflip,0,0])
671 translate([-phone_width/2, 0, 0])
676 module Flip_bot(yn=[0,1]) {
678 translate([0, -phone_height/2, 0])
679 mirror([0, $botflip, 0])
680 translate([0, phone_height/2, 0])
685 module AroundEdges(fill_zstart, fill_th, fill_downwards=0){
688 translate([0, -phone_cnr_rad, 0])
690 linear_extrude(height = phone_height - phone_cnr_rad*2)
694 Flip_rhs() Flip_bot() {
695 translate([+1,-1] * phone_cnr_rad)
700 translate([-1,0] * phone_cnr_rad)
702 rectfromto([0,-20],[10,20]);
704 translate([-10, 0, -20] + 0.01 * [+1,-1, 0] )
710 translate([ phone_width - phone_cnr_rad, 0,0 ])
712 linear_extrude(height = phone_width - phone_cnr_rad*2)
716 translate([0,0, fill_zstart])
717 mirror([0,0, fill_downwards])
718 linear_extrude(height = fill_th)
719 rectfromto([+1,-1] * phone_cnr_rad,
720 [phone_width, -phone_height] + [-1,+1] * phone_cnr_rad);
723 module CaseAperture(pos, dia, $fn) {
725 translate([ pos[0] + bumper[0],
728 rotate([-90, theta, 0])
729 cylinder(r = dia/2 / cos(theta),
733 module SideButton(y, y_ref_sign, l, suppress_over_keeper=0){
735 // +1 measured from top of actual phone to top of button
736 // -1 measured from bottom of actual phone to bottom of button
737 // 0 y is centre of button in coordinate system
739 $button_suppress_over_keeper= suppress_over_keeper;
740 eff_y = y_ref_sign > 0 ? -bumper [1] -y -l/2 :
741 y_ref_sign < 0 ? (-phone -bumper)[1] +y +l/2 :
744 translate([0, eff_y, 0])
748 module LidButtonishLeg(y, y_ref_sign, l=buttonishleg_default_l_is_fudge) {
749 $button_leg_only = true;
750 SideButton(y, y_ref_sign, l) children();
754 Flip_rhs(1) SideButton(15.580, +1, 8.9 ) children(); // power
755 Flip_rhs(1) SideButton(48.700, -1, 8.920 ) children(); // camera
756 Flip_rhs(0) SideButton(30.800, +1, 21.96, 1) children(); // volume
757 Flip_rhs( ) LidButtonishLeg(14, -1) children();
758 // Flip_rhs(0) LidButtonishLeg(20, +1, 20) children();
761 module Struts(x_start, z_min, th){
762 // if th is negative, starts at z_min and works towards -ve z
763 // and object should then be printed other way up
764 for (i= [1 : 1 : case_struts_count]) {
768 mirror([0,0, th<0 ? 1 : 0])
770 -phone_height * i / (case_struts_count+1),
771 case_struts_solid_below])
772 linear_extrude(height= abs(th)
773 -(case_struts_solid_below+case_struts_solid_above))
774 rectfromto([ x_start, -0.5 * case_struts_width ],
775 [ phone_width - x_start, +0.5 * case_struts_width ]);
779 module OrdinaryRearAperture(rhs,bot, pos){
780 Flip_rhs(rhs) Flip_bot(bot)
783 translate(pos + bumper)
791 linextr(-epp2i[0], 60)
792 translate([0.5 * phone_width, 0, 0])
793 rectfromto([-microusb_width/2, epp2i[1] + microusb_below],
794 [+microusb_width/2, epp0[1] + -microusb_above]);
798 module OrdinaryRearApertures(){
800 OrdinaryRearAperture(1,1, rearspeaker_pos_bl)
801 rectfromto(-rearspeaker_gap,
802 rearspeaker_size + rearspeaker_gap);
804 // finger hole to remove phone
805 if (len(fingerpushhole_dias))
806 OrdinaryRearAperture(1,0, [ fingerpushhole_dias[0]/2 + epp2i[0],
808 scale(fingerpushhole_dias)
812 module RearCameraAperture(){
815 linear_extrude(height = 20)
818 rectfromto(camera_pos_tl, camera_pos_br);
821 module HingeLidProfile(){
823 circleat(hppT, hp_r1);
824 circleat(lpp12, lp_r12);
832 module HingeBaseProfile(){
835 circleat(hppB, hp_r1);
836 circleat(hppE, hp_r1);
837 circleat(epp2o, case_th_bottom);
838 circleat(hppB + [10,0], hp_r1);
840 polygon([epp5, epp1, epp2i, epp3, bppL]);
844 module HingeLeverOuterProfile(){
846 circleat(hppT, hp_r2);
847 circleat(hppB, hp_r2);
851 module HingeLeverInnerProfile(){
853 c = s > 0 ? hppT : hppB;
856 rotate(s<0 ? -40 : 0)
865 module HingeLeverNutProfile(){
866 for (c= [hppB, hppT]) {
868 circle($fn=6, r= 0.5 * hingescrew_nut_across / cos(30));
872 module Flip_hinge(doflip=1){
873 hinge_origin = [0, -(phone_height - hppB[0]), hppB[1]];
874 translate(hinge_origin)
875 rotate([doflip*180,0,0])
876 translate(-hinge_origin)
880 module HingePortion(x0,x1){
881 Flip_rhs() Flip_bot(1)
885 linear_extrude(height=x1-x0)
889 module CatchPortion(xwidth, ztop){
890 width = catch_width + xwidth;
891 w = width + catch_topcurve_r*2 + 1;
892 translate([phone_width/2, 0,0]){
897 translate([0, 50, 0])
899 linear_extrude(height=100){
900 for (m=[0,1]) mirror([m,0,0]) {
902 translate([w/2, ztop - catch_topcurve_r])
903 circle(catch_topcurve_r);
904 translate([w/2, -50])
905 square(catch_topcurve_r*2, center=true);
914 AroundEdges(epp3[1], case_th_bottom, 1)
918 function prop_x(gamma) = hp_k / (2 * sin(gamma/2)) - hppT[0];
920 module PropProfileAssignments(gamma){
921 // https://en.wikipedia.org/wiki/Solution_of_triangles#Two_sides_and_the_included_angle_given_(SAS)
923 p = phone_height + prlp10[0] - hppB[0];
926 q = phone_height - hppT[0] - prcp1[0]; // $prpp7[0] is 0 by definition
928 c = sqrt(a*a + b*b - 2*a*b*cos(gamma));
929 $prp_alpha = acos( (b*b + c*c - a*a) / (2*b*c) );
931 $prp_theta = 90 - $prp_alpha;
932 beta = 180 - $prp_alpha - gamma;
935 //echo("abc", a,b,c);
937 v1 = [ [ cos(psi), -sin(psi) ], // x
938 [ sin(psi), cos(psi) ] ]; // y
940 $prpp7 = [0, c + (lpp13[1] - $prpp10[1] - hp_k) ];
943 $prp_r11 = prop_main_th/2;
945 $prpp1 = $prpp7 + [1,0] *
946 // this is approximate, but will do
947 (prop_main_th/2 + prop_prop_gap + prcp1[0] - cppA[0]);
950 v1[1] * ((prcp2[1] - prcp1[1]) - prop_prop_gap);
951 $prpp12 = $prpp3 + v1[0] *
952 (prop_end_dia + prop_caserecess_taper * ($prpp1[1] - $prpp3[1]));
953 $prp_r8 = prop_main_th;
954 $prpp4 = [ prop_main_th/2, $prpp3[1] ];
956 $prpp5 = [ $prpp12[0] - $prp_r5,
957 $prpp3[1] - prop_prong_h + $prp_r5 ];
958 $prpp6 = $prpp4 + [0,-1] * (prop_prong_h +
959 prop_prong_heel_slope * ($prpp5[0] - $prpp4[0]));
960 $prpp8 = $prpp4 + [0,-1] * $prp_r8;
961 $prpp9 = $prpp8 + [-1,0] * $prp_r8;
966 module PropProfile(gamma, cut=0, rot=0){ ////toplevel
967 PropProfileAssignments(gamma){
969 //#circleat($prpp3,1);
970 //#circleat($prpp12,1);
977 polygon([[-20,-0], [20,20], [0,0]]);
979 rectfromto($prpp6, $prpp9);
980 translate($prpp5) intersection(){
982 polygon([[-10,-10], [0,0], [10,0]]);
984 rectfromto($prpp12 + [0,-0.1], $prpp3);
987 circleat($prpp1, $prp_r1);
988 rectfromto($prpp12 + [0,-0.1], $prpp3);
992 rotate([0,0, rot*-$prp_theta]){
994 extra = cut ? prop_recess_slop : 0;
995 rectfromto($prpp6, $prpp9);
996 circleat($prpp11, $prp_r11 + extra);
997 circleat($prpp10, $prp_r10 + extra);
1003 module PropAggregateProfile(){
1004 for (angle = prop_angles)
1005 PropProfile(angle, 0,0);
1008 module Prop(){ ////toplevel
1009 hw = prop_main_width/2;
1011 PropAggregateProfile();
1014 module Case(){ ////toplevel
1019 // ledge (fixed keeper)
1020 Flip_rhs(1-keeper_side) intersection(){
1022 linear_extrude(height = phone_height + phone_cnr_rad * 2)
1025 // outline of the whole case, to stop it protruding
1026 translate([0,0, -25])
1027 linear_extrude(height = 50)
1030 circleat([+1,-1] * phone_cnr_rad, phone_cnr_rad + case_th_side/2);
1034 HingePortion(hex20, hex21) HingeBaseProfile();
1036 // buildout for prop recess
1037 if (prop_caserecess_buildout_r > 0) Flip_rhs(1)
1038 linextr(case_bottom_z, epp2i[1])
1041 circleat([ prop_x_pos + dxs * prop_caserecess_buildout_r,
1043 r = epp2o[0] - prcp2[0]);
1048 Flip_rhs(keeper_side)
1049 translate([0, -phone_cnr_rad, 0])
1051 linear_extrude(height = phone_height + phone_cnr_rad * 2)
1054 rectfromto([ -keeper_gap_x, -keeper_gap_z_bot ],
1055 [ keeper_gap_x_holes, +keeper_gap_z_top ]);
1059 RearCameraAperture();
1061 // struts (invisible, because they're buried in the case)
1062 Struts(epp2i[0], epp2i[1] - case_th_bottom, case_th_bottom);
1067 if (!($button_leg_only && enable_support))
1069 translate([0,0,-10])
1070 linear_extrude(height= 20)
1071 ButtonPlan($button_l, 0,1);
1072 if ($button_leg_only)
1074 translate([phone_width/2, -400, kppe[1]])
1075 mirror([1-abs($rhsflip - keeper_side),0,0])
1076 cube([400, 800, 50]);
1077 if (enable_support && !$button_suppress_over_keeper)
1079 translate([-400, -400, kppd[1]])
1081 cube([800,800,100]);
1083 translate([0,0, -bppR[0]])
1084 linear_extrude(height= 20)
1085 ButtonPlan($button_l, 1,1);
1090 // apertures along top edge
1091 CaseAperture(jack_pos, jack_dia, 8);
1093 CaseAperture(noisecancelmic_pos, noisecancelmic_dia, 8);
1095 OrdinaryRearApertures();
1099 // gaps for the lid's hinge arms
1100 HingePortion(hex20 - hinge_x_arms_gap,
1101 hex21 + hinge_x_arms_gap)
1104 circle(r= hinge_r_arms_gap, $fn= 8);
1107 // screw holes in the hinge arms
1111 CatchPortion(catch_side_gap*2, epp4[1])
1116 translate([prop_x_pos,0,0])
1119 linextr(-prop_recess_hw, +prop_recess_hw)
1121 for (d=[ [0,0], [0,-1], [+1,-1/prop_caserecess_taper] ])
1122 circleat(prcp1 + 20*d,
1128 module LidAdhocMultiprintFrame(phase){
1129 if (led_window_style >= 3) {
1130 AdhocMultiprintFrame(phase, lpp13[1], -1);
1134 module LidAroundEdges(){
1135 AroundEdges(lpp15[1], lpp13[1] - lpp15[1], 0)
1139 module Lid(){ ////toplevel
1140 skew_centre = [0, lpp11[0], lpp11[1]];
1147 translate(skew_centre)
1148 multmatrix([[ 1, 0, 0, 0 ],
1149 [ 0, 1, -lid_fold_clearance_skew, 0 ],
1152 translate(-skew_centre)
1154 LidEdgeFoldClearanceProfile();
1161 translate([0,0,-10])
1162 linear_extrude(height= 20)
1163 ButtonPlan($button_l, 1,0);
1165 translate([0,0,-100])
1166 linear_extrude(height= 200)
1167 ButtonCoverProfile();
1172 HingePortion(hex20, hex21) {
1178 CatchPortion(0, lpp12[1])
1179 CatchCatchProfile();
1181 Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid);
1183 // screw holes in the hinge arms
1187 translate([prop_x_pos, -prlp10[0], prlp10[1]])
1190 linextr(-prop_recess_hw, +prop_recess_hw)
1192 for (pa = prop_angles)
1193 PropProfile(pa, 1,1);
1195 // notification led aperture
1196 if (led_window_style)
1197 translate([led_pos[0], -led_pos[1], lpp13[1]]) {
1198 translate([0,0,-10])
1199 cylinder(r=nla_r0, h=20);
1200 if (led_window_style >= 2)
1201 translate([0,0, -nla_t])
1202 cylinder(r=nla_r2, height=20);
1207 LidAdhocMultiprintFrame(1);
1210 module HingeLever(){ ////toplevel
1212 // outer body, positive
1213 HingePortion(hex22, hex22 + phone_width/2)
1214 HingeLeverOuterProfile();
1216 // space for the screws
1217 HingePortion(hex26, hex24)
1218 HingeLeverInnerProfile();
1220 // recesses for the nuts
1221 HingePortion(hex23, hex26+1)
1222 HingeLeverNutProfile();
1224 // bores for the screws
1227 // space for the charging cable
1229 Flip_hinge() MicroUSB();
1233 module LidWindow(){ ////toplevel
1234 translate([led_pos[0], -led_pos[1], lpp13[1]])
1236 cylinder(r= nla_r1, h=nla_t);
1237 LidAdhocMultiprintFrame(0);
1240 module LidWindowPrint(){ ////toplevel
1245 module DemoLidWindowSelect(){
1246 translate([led_pos[0], led_pos[1], -100]) {
1247 translate([0, -30, 0]) cube([400, 400, 200]);
1251 module DemoLidWindow(){ ////toplevel
1254 translate([0,40,0]){
1255 color("blue") intersection(){ Lid(); DemoLidWindowSelect(); }
1256 color("red") intersection(){ LidWindow(); DemoLidWindowSelect(); }
1260 module HingeLeverPrint(){ ////toplevel
1262 translate([-phone_width/2, phone_height, 0])
1266 module TestSelectLength(){
1267 translate([-30, -200, -20])
1268 cube([30 + 15, 250, 40]);
1271 module TestLength(){ ////toplevel
1278 module TestLengthRight(){ ////toplevel
1286 module TestSelectWidth(){
1287 translate([-30, -(phone_height - 25), -20])
1289 cube([200, 50, 40]);
1292 module TestWidth(){ ////toplevel
1299 module TestLidWidthPrint(){ ////toplevel
1300 rotate([0,180.0]) intersection(){
1306 module TestSelectRearAperture(){
1309 translate([20, 0,0])
1310 cube([42, 2, 1], center=true);
1314 module TestSelectCamera(){
1316 TestSelectRearAperture()
1317 RearCameraAperture();
1318 cube([0.1, 50, 0.1]);
1322 module TestSelectOrdinaryRearApertures(){
1323 TestSelectRearAperture()
1324 OrdinaryRearApertures();
1327 module TestCamera(){ ////toplevel
1334 module TestLidByCamera(){ ////toplevel
1341 module TestLidByCameraPrint(){ ////toplevel
1342 rotate([180,0,0]) TestLidByCamera();
1345 module DemoByCamera(){ ////toplevel
1346 color("blue") TestLidByCamera();
1347 color("red") TestCamera();
1350 module OneKeeper(){ ////toplevel
1351 translate([0, -phone_cnr_rad, 0])
1353 linear_extrude(height = phone_height - phone_cnr_rad * 2)
1357 module OneKeeperPrint(){ ////toplevel
1362 module LidPrint(){ ////toplevel
1367 module TestSelectFrame(){
1368 include = [1,-1] * (epp2i[0] + 4);
1371 cube(1000, center=true);
1372 translate([0,0, -100])
1373 linear_extrude(height=200)
1374 rectfromto(include, inside_br - include);
1378 module TestSelectLidFrame(){
1380 translate([led_pos[0], -led_pos[1], -50])
1381 cylinder(r= nla_r2+3, h=100);
1384 module TestFrameCase(){ ////toplevel
1390 TestSelectOrdinaryRearApertures();
1395 module TestSelectTopApertures(){
1396 translate([-100, -35, -100])
1397 cube([400, 100, 200]);
1398 LidAdhocMultiprintFrame(0);
1399 LidAdhocMultiprintFrame(1);
1402 module TestTopApertures(){ ////toplevel
1406 TestSelectTopApertures();
1410 module TestLidTopAperturesPrint(){ ////toplevel
1411 rotate([0,180,0]) intersection(){
1413 TestSelectLidFrame();
1414 TestSelectTopApertures();
1418 module TestLidWindowTopAperturesPrint(){ ////toplevel
1419 rotate([0,180,0]) intersection(){
1421 TestSelectTopApertures();
1425 module TestFrameLidPrint(){ ////toplevel
1426 rotate([0,180,0]) intersection(){
1428 TestSelectLidFrame();
1432 module ButtonPlanForDemo(z, deep, cut){
1434 ButtonPlan(8, deep, cut);
1437 module HingeScrews(){
1438 Flip_rhs() Flip_bot(1){
1439 for (c= [ hppT, hppB ])
1444 translate([0,0,-.2])
1445 cylinder( r= hingescrew_shaft_dia/2,
1446 h = hingescrew_shaft_len+0.2 );
1448 translate([0,0,+.1])
1449 cylinder( r= hingescrew_head_dia/2, h = hingescrew_head_th );
1454 module DemoPropAngleSelect(c){
1455 color(c) difference(){
1456 union(){ children(); }
1457 translate([ prop_x_pos, -400, -200 ])
1458 cube([ 400,800,400 ]);
1462 module DemoPropAngle(ang){
1463 hL = [0, -(phone_height - hppT[0]), hppT[1] - hp_k*2];
1464 hC = [0, -(phone_height - hppB[0]), hppB[1]];
1472 DemoPropAngleSelect("red") Case();
1475 translate([prop_x_pos, -prcp1[0], prcp1[1]])
1476 PropProfileAssignments(ang) {
1478 rotate([-$prp_theta, 0, 0])
1479 translate([0, $prpp1[0], -$prpp1[1]])
1485 translate([0,0, -hp_k*2])
1486 DemoPropAngleSelect("blue")
1490 module DemoPropAngles(){ ////toplevel
1491 for (i=[0 : len(prop_angles)-1])
1492 translate(i * [0, -100, 100])
1493 DemoPropAngle(prop_angles[i]);
1496 module DemoHingeAngle(ang1,ang2){
1497 hL = [0, -(phone_height - hppT[0]), hppT[1]];
1498 hC = [0, -(phone_height - hppB[0]), hppB[1]];
1509 color("blue") intersection(){
1512 translate([bppJ[0], -400, -200])
1514 cube([400, 800, 400]);
1515 translate([10, -400, -200])
1516 cube([10, 800, 400]);
1521 module DemoHingeAngles(){ ////toplevel
1522 angles = [ 0, 4, 8, 12 ];
1523 echo("angles",angles);
1524 for (i=[0 : len(angles)-1]) {
1525 translate(i * [0, 0, 30]) {
1526 DemoHingeAngle(0,angles[i]);
1527 translate([0, 200, 0])
1528 DemoHingeAngle(angles[i],0);
1533 module DemoSelectAdhocLeftRight(right=0) {
1534 translate([phone_width/2, -400, -100]) // , -15, -100 to cross-section
1535 mirror([1-right, 0,0])
1536 cube([400, 800, 200]);
1539 module DemoLeft(){ ////toplevel
1540 color("red") intersection(){ Case(); DemoSelectAdhocLeftRight(); }
1541 color("blue") intersection(){ Lid(); DemoSelectAdhocLeftRight(); }
1544 module DemoFrame(){ ////toplevel
1545 color("red") TestFrameCase();
1546 color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
1547 color("black") HingeScrews();
1551 module DemoHingedFrame(){ ///toplevel
1552 color("red") TestFrameCase();
1553 translate([0,0, -2*hp_k])
1554 color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
1557 color("orange") HingeLever();
1558 color("black") HingeScrews();
1562 module DemoHinge(){ ////toplevel
1563 translate([ -0.5*phone_width, phone_height, hp_k*3 ]) {
1565 translate([0,0, -hp_k*3])
1570 module DemoProfiles(){ ////toplevel
1574 translate([0,0,-1]) color("black") KeeperProfile(1);
1575 color("purple") translate(epp2i)
1576 rotate(atan2vector(epp2i - epp1)) {
1577 translate(lanyard_half_dia * 0.5 * [-3,-1])
1578 LanyardLanyardProfile();
1579 translate(lanyard_half_dia * 0.5 * [-3,+1])
1580 translate([0,-1] * case_th_side)
1581 LanyardLanyardProfile(true);
1585 LanyardMainChannelProfile();
1586 translate([0,0,1]) color("purple") LanyardCurveChannelProfile();
1587 translate([0,0,-1]) color("red") LanyardEntryChannelProfile();
1594 demopoint_QR = [ bppS[0], bppQ[1] - 0.1];
1596 color("blue") ButtonCoverProfile();
1598 rectfromto(bppQ, demopoint_QR);
1599 rectfromto(bppR, demopoint_QR);
1603 translate([-20,0]) {
1604 color("black") ButtonPlanForDemo(-2, 0,1);
1605 color("red" ) ButtonPlanForDemo(-4, 1,1);
1606 color("blue") ButtonPlanForDemo(-6, 1,0);
1609 translate([0, -30]) {
1612 color("blue") HingeLidProfile();
1613 color("red") HingeBaseProfile();
1614 color("black") translate([0,0,-2]) HingeLeverOuterProfile();
1618 translate([-30, -60 + 30*f]) {
1619 translate([0,0,-4]) EdgeProfile();
1620 %translate([0,0,-10]) HingeBaseProfile();
1621 translate([0,-2] * f * hp_k) {
1622 translate([0,0,-4]) LidEdgeProfile();
1623 %translate([0,0,-10]) %HingeLidProfile();
1625 translate(+hppB) rotate([0,0,180*f]) translate(-hppB) {
1626 translate([0,0,-2]) color("black") HingeLeverOuterProfile();
1627 translate([0,0,0]) color("red") difference(){
1628 HingeLeverOuterProfile();
1629 HingeLeverInnerProfile();
1631 translate([0,0,3]) color("yellow") HingeLeverNutProfile();
1636 translate([20,-30]) {
1639 //translate([0,0,1]) CatchCutProfile();
1640 color("blue") CatchCatchProfile();
1641 color("red") difference(){ EdgeProfile(); CatchCutProfile(); }
1644 translate([40,-30]) {
1648 PropProfile(10, 1, 0);
1653 translate([60,-30]) {
1654 PropAggregateProfile();