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.
122 phone = [ 75.0, 145.0 ];
124 prop_buildout_less = 3;
126 prop_angles = [ 15, 30, 45, 60 ];
128 bumper = [ 0.250, -0.025 ];
129 // ^ One side. Overall size is increased by twice this.
130 // If no bumpers, is the gap around the phone.
134 led_window_style = 3;
136 // 1: simply an opening
137 // 2: opening with separate cover model, for printing in clear (two colour)
138 // 3: like 2 but one-layer window for ad-hoc multi-colour
140 initial_layer_thick = 0.400; // ^ needed for mode 3 only
141 initial_layer_width = 0.750; // ^ needed for mode 3 only
142 multicolour_gap = 0.15; // each side
145 phone_rim_depth = 0.80; // includes allowance for a screen protector
147 button_cutout_depth = 9;
149 phone_edge_thick = 9.0;
150 phone_total_thick = 12.0;
151 phone_backside_slope_inner = 1.5; // larger means shallower
152 phone_backside_slope_outer = 1.0; // larger means shallower
154 camera_pos_tl = [ 6.450, 12.750 ]; // measured from tl corner
155 camera_pos_br = [ 22.300, 37.600 ]; // tl/br as seen from back
157 jack_pos = [ 13.83, 8.485 ];
158 jack_dia = 10.64 + .5; // some jack I had lying around
160 led_pos = [ 13.98, 10.00 ];
162 led_window_ledge = 0.75; // each side
164 noisecancelmic_pos = [ 19.54, 7.37 ]; // from rhs
165 noisecancelmic_dia = 4.00;
167 //fingerpushhole_dias = [ 15, 18 ];
168 fingerpushhole_dias = [];
170 rearspeaker_pos_bl = [ 12.64, 18.72 ];
171 rearspeaker_size = [ 3.76, 7.36 ];
173 microusb_above = 3.27 - 0.25;
174 microusb_below = 0.0;
175 microusb_width = 16.12 + 1.25;
177 case_th_bottom = 2.5;
182 lid_screen_gap_extra = .66;
184 case_struts_count = 6;
185 case_struts_solid_below = 1.00;
186 case_struts_solid_above = 0.75;
187 case_struts_width = 0.10;
191 keeper_inner_width = 2.75;
192 keeper_inner_height = 2.75;
193 keeper_slant_slope = 2; // larger means steeper
195 keeper_gap_z_top = 0.25;
196 keeper_gap_z_bot = 0.75;
198 keeper_gap_x_holes = 0.75;
200 keeper_side = 0; // 0 = lhs; 1 = rhs
211 foldover_lever_gap = 0.50;
213 // properties of the hinge fasteners
214 hingescrew_shaft_dia = 2.0 + 0.25; // M2 x 12mm machine screw
215 hingescrew_shaft_len = 12;
216 hingescrew_fasteners_extra_thick = 0.40;
217 // ^ amount of thread protruding if everything was completely nominal
218 // and we are using two nuts
219 hingescrew_nut_access_dia = 4.72 + 0.50;
220 // ^ washer is 4.72 dia
221 // also, want to get pliers or tiny spanner in to do up locknut
222 hingescrew_nut_across = 3.92 + 0.25; // incl. slop around recess slop
223 hingescrew_nut_thick = 1.93;
224 hingescrew_head_th = 1.38 + 0.75;
225 hingescrew_head_dia = 3.92;
227 hingescrew_nut_recess_portion = 2/3; // portion of nut in recess
229 lever_cover_th = 0.75;
231 hingemount_wd = 4.8725;
236 button_l_fudge = 4.4;
237 buttonishleg_default_l_is_fudge = 10;
239 hinge_base_slope = 1.5; // bigger is steeper
241 strut_min_at_end = 1.5;
244 hinge_x_postscrew_gap = 0.75;
245 hinge_x_arms_gap = 0.35;
246 hinge_r_arms_gap = 0.55;
248 rearspeaker_gap = [ 2.0, 2.0 ]; // each side
252 catch_thickness = 1.0;
253 catch_side_gap = 0.75; // each side
257 catch_finger_height = 1.5;
258 catch_finger_depth = 2.5;
260 prop_recess_under = 0.50;
261 prop_recess_slop = 0.200; // each side
266 prop_side_gap = 0.75; // each side
267 prop_lidrecess_behind = 0.75;
268 prop_caserecess_behind = 0.75;
269 prop_caserecess_taper = 0.45; // one side only
271 prop_prong_heel_slope = 0.5;
273 lid_fold_clearance_antislop = 0.5;
275 // ---------- calculated ----------
277 phone_width = (phone + bumper*2)[0];
278 phone_height = (phone + bumper*2)[1];
280 inside_br = [phone_width, -phone_height];
282 prop_prong_h = prop_main_th;
284 //echo(camera_pos_tl + bumper,
285 // camera_pos_br + bumper);
287 // ----- could be changed -----
288 lid_buttoncover_gap = lid_gap_x;
289 lid_buttoncover_overlap = case_th_lip + keeper_gap_z_top;
291 phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
293 //prop_lidrecess_depth = case_th_lid - prop_recess_under;
295 //prop_nose_len = case_th_lid - prop_recess_under;
296 //prop_recess_slope = tan(prop_max_angle); // bigger means steeper
297 //prop_recess_width = prop_main_th / cos(prop_max_angle) + prop_backfwd_gap;
300 //lid_lip_overlap_width xxx bad name = ;
301 //lid_lip_inner_slope = [ 5, 5 ]; // xxx
304 epp1 = [0, -phone_edge_thick];
305 epp2i = epp1 + phone_backside_slope_thick * [ phone_backside_slope_inner, -1 ];
306 epp2o = epp1 + phone_backside_slope_thick * [ phone_backside_slope_outer, -1 ];
307 epp3 = epp2i + [10, 0];
308 epp5 = epp0 + [0,1] * (keeper_th_z + keeper_gap_z_top + case_lip);
309 epp4 = epp5 + [-1,0] * case_th_side;
312 kppd = kppe + [1,0] * keeper_inner_width;
313 kppc = kppd + [0,1] * keeper_th_z;
314 kppb = [ kppe[0] - keeper_th_x, kppc[1] ];
315 kppf = kppe - [0,1] * keeper_inner_height;
316 kppa = [ kppb[0], kppf[1] ];
318 lpp10 = [ epp5[0] + lid_gap_x, kppc[1] + lid_gap_z ];
319 lpp11 = [ lpp10[0], epp5[1] + lid_gap_z ];
321 lpp14 = lpp10 + [1,0] * keeper_inner_width;
322 // exact x posn not very important; must extend past end of keeper
325 epp0[1] - phone_rim_depth + 1/2.5 * case_th_lid
326 + lid_screen_gap_extra ];
327 // ^ beam theory says to maximise force before contact,
328 // the gap below the `beam' (the lid) must be 1/3
329 // the thickness (ie the lid thickness) if the beam
330 // is solid, or 1/2 if it has a top and bottom only.
331 // ours is mostly solid.
333 lp_r12 = max(case_th_lid - (lpp11[1] - lpp15[1]),
336 lpp12 = [ epp4[0] + lp_r12, lpp11[1] ];
337 lpp13 = [ lpp12[0], lpp12[1] + lp_r12 ];
339 case_bottom_z = epp2o[1] - case_th_bottom;
343 bppN = [ 0.5 * (epp0[0] + epp4[0]), bppM[1] ];
344 bppR = [ bppN[0] + lid_buttoncover_gap, -button_cutout_depth ];
345 bppS = [ epp1[0], bppR[1] ];
346 bppQ = [ bppM[0], bppR[1] - lid_buttoncover_overlap ];
347 bppP = bppQ + [0,1] * lid_buttoncover_gap;
348 bppO = [ bppN[0], bppP[1] ];
349 bppL = lpp10 + [5,0];
350 bppK = [ bppL[0], bppN[1] ];
351 bppJ = [ bppN[0], bppL[1] ];
352 bppU = [ bppJ[0], lpp12[1] ];
356 // notification led aperture
358 nla_r0 = led_aperture/2;
359 nla_r1 = nla_r0 + led_window_ledge;
360 nla_r2 = nla_r1 + multicolour_gap;
362 led_window_style >= 3 ? initial_layer_thick :
363 led_window_style >= 2 ? led_window_ledge : 0;
367 hp_rn = hingescrew_nut_access_dia/2;
368 hp_r2_min = hp_rn + lever_cover_th;
369 hp_rs = hingescrew_shaft_dia/2;
370 hp_r1_min = hp_rs + hingemount_th;
372 hp_r1 = max(hp_r1_min, hp_r2_min);
376 hppS = epp2o + [0,-1] * case_th_bottom;
377 hp_k = 0.5 * (hppU[1] - hppS[1] + foldover_gap);
379 hppM = [ epp4[0] - foldover_lever_gap - hp_r2,
380 0.5 * (hppU + hppS)[1] ];
381 hppT = [ hppM[0], hppU[1] - hp_r1 ];
382 hppB = hppT + [0,-1] * hp_k;
384 hppE_y = epp2o[1] - case_th_bottom + hp_r1;
385 hppE_x = hppB[0] + (hppB[1] - hppE_y) * hinge_base_slope;
386 hppE = [ hppE_x, hppE_y ];
388 // hinge elevation x coords
390 hex20 = max(epp2o[0],
392 kppd[0] + hingescrew_head_th + keeper_gap_x_holes);
393 hex21 = hex20 + hingemount_wd;
394 hex22 = hex21 + hinge_x_gap;
395 hex27 = hex20 + hingescrew_shaft_len;
396 hex24 = hex27 + hinge_x_postscrew_gap;
397 hex23 = hex27 - (hingescrew_nut_thick*2
398 + hingescrew_fasteners_extra_thick);
399 hex26 = hex23 + hingescrew_nut_thick * 2/3;
401 echo(hex20, hex21, hex22, hex23, hex24);
402 // 6, 10.8725, 10.9975, 13.74, 18.75
403 module chk(act,exp) {
404 if (abs(act-exp) > 1e-9) echo("WRONG", act, exp);
405 else echo("ok", act);
413 lid_fold_clearance_skew =
414 (lpp10[1] - hppB[1]) /
415 (lpp10[0] - hppB[0]);
417 echo("SK",lid_fold_clearance_skew);
421 cppJ = [ epp4[0] + catch_thickness, lpp10[1] ];
422 cppA = cppJ + [lid_gap_x, -lid_gap_z];
423 cppB = [ epp0[0], cppA[1] ];
424 cppP = [ epp4[0], cppJ[1] ];
426 cppS = cppJ + [0,-1] * catch_len;
427 cppD = [ cppA[0], cppS[1] + catch_slop ];
428 cppC = [ cppB[0], cppD[1] ];
429 cppT = cppS + [1,0] * catch_depth;
430 cppU = cppT + [0,-1] * catch_height;
431 cppV = [ cppS[0], cppU[1] - catch_depth ];
433 cppR = 0.5*(cppP + cppJ);
435 cp_rQ = 0.5 * (cppJ[0] - cppP[0]);
437 cppV[1] - (catch_finger_height - cp_rQ) ];
438 cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
440 // prop recess in case
442 prop_x_pos = phone_width/2;
444 prop_recess_hw = 0.5 * prop_main_width + prop_side_gap;
446 prc_r1 = prop_end_dia/2;
447 prc_r3 = prc_r1 + prop_recess_slop;
449 prcp2 = [ epp4[0] + prop_buildout_less,
452 prop_caserecess_buildout_r = -1; // prcp2[0] - epp2o[0];
454 prcp1 = [ epp2o[0] + prc_r3 + prop_caserecess_behind,
455 epp2i[1] - prc_r3 - prop_recess_under];
457 // prop recess in lid
459 prl_r10 = prop_end_dia/2;
460 prl_r10o = prl_r10 + prop_recess_slop;
462 prlp10 = lpp10 + [1,1] * prl_r10o
463 + [1,0] * prop_lidrecess_behind
464 + [0,1] * prop_recess_under;
469 $prpp11 = [0, prop_taper_len];
473 // ---------- modules ----------
475 module AdhocMultiprintFrame(phase, z0, zs) {
476 // from z0 to z0 + zs*layer
477 extra = phase * (initial_layer_width + multicolour_gap) + 5;
478 xextra = extra + -epp4[0];
479 xrange = [ 0, phone_width ] + [-1,+1] * xextra;
480 yextra = extra + -epp4[0];
481 yrange = [ -phone_height + +hppB[0] - hp_r2, 0 ] + [-1,+1] * yextra;
482 p0 = [ xrange[0], yrange[0] ];
483 p1 = [ xrange[1], yrange[1] ];
486 mirror([0,0, zs<0 ? 1 : 0])
487 linear_extrude(height= initial_layer_thick)
489 rectfromto(p0 - [1,1] * initial_layer_width,
490 p1 + [1,1] * initial_layer_width);
495 module KeeperProfile(slant=0){
496 use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope;
497 polygon([use_e, kppd, kppc, kppb, kppa, kppf]);
500 module EdgeProfile(){
503 translate(epp3) square(case_th_bottom*2, center=true);
504 circleat(epp2o, r=case_th_bottom);
505 circleat(epp1, r=case_th_side);
506 rectfromto(epp0, epp4);
508 polygon([ epp5 + [0,10],
515 module LidEdgeProfile(){
526 circleat(lpp12, r=lp_r12);
527 rectfromto( lpp12 + [-10, 0],
528 lpp12 + [+10, +10] );
532 module LidEdgeFoldClearanceProfile(){
533 translate([-lid_fold_clearance_antislop, 0])
542 module ButtonCoverProfile(){
544 polygon(concat([ bppM, bppP, bppO, bppJ ],
545 (enable_support && !$button_suppress_over_keeper
546 ? [ bppU, bppV, bppW ] : []),
555 module ButtonPlan(l, deep, cut){
557 (cut ? 0 : lid_buttoncover_gap);
560 (deep ? lid_buttoncover_overlap : 0);
562 C = [0,0]; // by definition
566 B0 = C + [0,-1] * button_cutout_depth;
567 B1 = B0 + [0,1] * epsilon;
569 r0 = 0.5 * (T[1] - B0[1]);
570 A = [ -(l + button_l_fudge)/2 + r0, 0.5 * (T[1] + B0[1]) ];
571 H = A + [0,-1] * delta;
577 E1 = E0 + [1,0] * epsilon;
579 I0 = [ E0[0], H[1] ];
580 I1 = [ E1[0], H[1] ];
583 for (m=[0,1]) mirror([m,0])
584 circleat(H, r0 - epsilon);
586 for (m=[0,1]) mirror([m,0]) {
596 circleat(D, r0 + epsilon);
601 module CatchCatchProfile(){
603 for (c=[ cppR, cppQ ])
607 circleat(lpp12, lp_r12);
608 circleat(lpp12 + [5,0], lp_r12);
609 rectfromto(cppP, cppP + [5,0.1]);
611 polygon([cppJ, cppS, cppT, cppU, cppV, cppQ, cppR]);
614 module CatchCutProfile(){
626 module Flip_rhs(yn=[0,1]) {
628 translate([phone_width/2, 0, 0])
629 mirror([$rhsflip,0,0])
630 translate([-phone_width/2, 0, 0])
635 module Flip_bot(yn=[0,1]) {
637 translate([0, -phone_height/2, 0])
638 mirror([0, $botflip, 0])
639 translate([0, phone_height/2, 0])
644 module AroundEdges(fill_zstart, fill_th, fill_downwards=0){
647 translate([0, -phone_cnr_rad, 0])
649 linear_extrude(height = phone_height - phone_cnr_rad*2)
653 Flip_rhs() Flip_bot() {
654 translate([+1,-1] * phone_cnr_rad)
659 translate([-1,0] * phone_cnr_rad)
661 rectfromto([0,-20],[10,20]);
663 translate([-10, 0, -20] + 0.01 * [+1,-1, 0] )
669 translate([ phone_width - phone_cnr_rad, 0,0 ])
671 linear_extrude(height = phone_width - phone_cnr_rad*2)
675 translate([0,0, fill_zstart])
676 mirror([0,0, fill_downwards])
677 linear_extrude(height = fill_th)
678 rectfromto([+1,-1] * phone_cnr_rad,
679 [phone_width, -phone_height] + [-1,+1] * phone_cnr_rad);
682 module CaseAperture(pos, dia, $fn) {
684 translate([ pos[0] + bumper[0],
687 rotate([-90, theta, 0])
688 cylinder(r = dia/2 / cos(theta),
692 module SideButton(y, y_ref_sign, l, suppress_over_keeper=0){
694 // +1 measured from top of actual phone to top of button
695 // -1 measured from bottom of actual phone to bottom of button
696 // 0 y is centre of button in coordinate system
698 $button_suppress_over_keeper= suppress_over_keeper;
699 eff_y = y_ref_sign > 0 ? -bumper [1] -y -l/2 :
700 y_ref_sign < 0 ? (-phone -bumper)[1] +y +l/2 :
703 translate([0, eff_y, 0])
707 module LidButtonishLeg(y, y_ref_sign, l=buttonishleg_default_l_is_fudge) {
708 $button_leg_only = true;
709 SideButton(y, y_ref_sign, l) children();
713 Flip_rhs(1) SideButton(15.580, +1, 8.9 ) children(); // power
714 Flip_rhs(1) SideButton(48.700, -1, 8.920 ) children(); // camera
715 Flip_rhs(0) SideButton(30.800, +1, 21.96, 1) children(); // volume
716 Flip_rhs( ) LidButtonishLeg(14, -1) children();
717 // Flip_rhs(0) LidButtonishLeg(20, +1, 20) children();
720 module Struts(x_start, z_min, th){
721 // if th is negative, starts at z_min and works towards -ve z
722 // and object should then be printed other way up
723 for (i= [1 : 1 : case_struts_count]) {
727 mirror([0,0, th<0 ? 1 : 0])
729 -phone_height * i / (case_struts_count+1),
730 case_struts_solid_below])
731 linear_extrude(height= abs(th)
732 -(case_struts_solid_below+case_struts_solid_above))
733 rectfromto([ x_start, -0.5 * case_struts_width ],
734 [ phone_width - x_start, +0.5 * case_struts_width ]);
738 module OrdinaryRearAperture(rhs,bot, pos){
739 Flip_rhs(rhs) Flip_bot(bot)
742 translate(pos + bumper)
750 linextr(-epp2i[0], 60)
751 translate([0.5 * phone_width, 0, 0])
752 rectfromto([-microusb_width/2, epp2i[1] + microusb_below],
753 [+microusb_width/2, epp0[1] + -microusb_above]);
757 module OrdinaryRearApertures(){
759 OrdinaryRearAperture(1,1, rearspeaker_pos_bl)
760 rectfromto(-rearspeaker_gap,
761 rearspeaker_size + rearspeaker_gap);
763 // finger hole to remove phone
764 if (len(fingerpushhole_dias))
765 OrdinaryRearAperture(1,0, [ fingerpushhole_dias[0]/2 + epp2i[0],
767 scale(fingerpushhole_dias)
771 module RearCameraAperture(){
774 linear_extrude(height = 20)
777 rectfromto(camera_pos_tl, camera_pos_br);
780 module HingeLidProfile(){
782 circleat(hppT, hp_r1);
783 circleat(lpp12, lp_r12);
791 module HingeBaseProfile(){
794 circleat(hppB, hp_r1);
795 circleat(hppE, hp_r1);
796 circleat(epp2o, case_th_bottom);
797 circleat(hppB + [10,0], hp_r1);
799 polygon([epp5, epp1, epp2i, epp3, bppL]);
803 module HingeLeverOuterProfile(){
805 circleat(hppT, hp_r2);
806 circleat(hppB, hp_r2);
810 module HingeLeverInnerProfile(){
812 c = s > 0 ? hppT : hppB;
815 rotate(s<0 ? -40 : 0)
824 module HingeLeverNutProfile(){
825 for (c= [hppB, hppT]) {
827 circle($fn=6, r= 0.5 * hingescrew_nut_across / cos(30));
831 module Flip_hinge(doflip=1){
832 hinge_origin = [0, -(phone_height - hppB[0]), hppB[1]];
833 translate(hinge_origin)
834 rotate([doflip*180,0,0])
835 translate(-hinge_origin)
839 module HingePortion(x0,x1){
840 Flip_rhs() Flip_bot(1)
844 linear_extrude(height=x1-x0)
848 module CatchPortion(width){
849 translate([phone_width/2, 0,0])
851 linextr(-width/2, width/2)
856 AroundEdges(epp3[1], case_th_bottom, 1)
860 function prop_x(gamma) = hp_k / (2 * sin(gamma/2)) - hppT[0];
862 module PropProfileAssignments(gamma){
863 // https://en.wikipedia.org/wiki/Solution_of_triangles#Two_sides_and_the_included_angle_given_(SAS)
865 p = phone_height + prlp10[0] - hppB[0];
868 q = phone_height - hppT[0] - prcp1[0]; // $prpp7[0] is 0 by definition
870 c = sqrt(a*a + b*b - 2*a*b*cos(gamma));
871 $prp_alpha = acos( (b*b + c*c - a*a) / (2*b*c) );
873 $prp_theta = 90 - $prp_alpha;
874 beta = 180 - $prp_alpha - gamma;
877 //echo("abc", a,b,c);
879 v1 = [ [ cos(psi), -sin(psi) ], // x
880 [ sin(psi), cos(psi) ] ]; // y
882 $prpp7 = [0, c + (lpp13[1] - $prpp10[1] - hp_k) ];
885 $prp_r11 = prop_main_th/2;
887 $prpp1 = $prpp7 + [1,0] *
888 // this is approximate, but will do
889 (prop_main_th/2 + prop_prop_gap + prcp1[0] - cppA[0]);
892 v1[1] * ((prcp2[1] - prcp1[1]) - prop_prop_gap);
893 $prpp12 = $prpp3 + v1[0] *
894 (prop_end_dia + prop_caserecess_taper * ($prpp1[1] - $prpp3[1]));
895 $prp_r8 = prop_main_th;
896 $prpp4 = [ prop_main_th/2, $prpp3[1] ];
898 $prpp5 = [ $prpp12[0] - $prp_r5,
899 $prpp3[1] - prop_prong_h + $prp_r5 ];
900 $prpp6 = $prpp4 + [0,-1] * (prop_prong_h +
901 prop_prong_heel_slope * ($prpp5[0] - $prpp4[0]));
902 $prpp8 = $prpp4 + [0,-1] * $prp_r8;
903 $prpp9 = $prpp8 + [-1,0] * $prp_r8;
908 module PropProfile(gamma, cut=0, rot=0){ ////toplevel
909 PropProfileAssignments(gamma){
911 //#circleat($prpp3,1);
912 //#circleat($prpp12,1);
919 polygon([[-20,-0], [20,20], [0,0]]);
921 rectfromto($prpp6, $prpp9);
922 translate($prpp5) intersection(){
924 polygon([[-10,-10], [0,0], [10,0]]);
926 rectfromto($prpp12 + [0,-0.1], $prpp3);
929 circleat($prpp1, $prp_r1);
930 rectfromto($prpp12 + [0,-0.1], $prpp3);
934 rotate([0,0, rot*-$prp_theta]){
936 extra = cut ? prop_recess_slop : 0;
937 rectfromto($prpp6, $prpp9);
938 circleat($prpp11, $prp_r11 + extra);
939 circleat($prpp10, $prp_r10 + extra);
945 module PropAggregateProfile(){
946 for (angle = prop_angles)
947 PropProfile(angle, 0,0);
950 module Prop(){ ////toplevel
951 hw = prop_main_width/2;
953 PropAggregateProfile();
956 module Case(){ ////toplevel
961 // ledge (fixed keeper)
962 Flip_rhs(1-keeper_side) intersection(){
964 linear_extrude(height = phone_height + phone_cnr_rad * 2)
967 // outline of the whole case, to stop it protruding
968 translate([0,0, -25])
969 linear_extrude(height = 50)
972 circleat([+1,-1] * phone_cnr_rad, phone_cnr_rad + case_th_side/2);
976 HingePortion(hex20, hex21) HingeBaseProfile();
978 // buildout for prop recess
979 if (prop_caserecess_buildout_r > 0) Flip_rhs(1)
980 linextr(case_bottom_z, epp2i[1])
983 circleat([ prop_x_pos + dxs * prop_caserecess_buildout_r,
985 r = epp2o[0] - prcp2[0]);
990 Flip_rhs(keeper_side)
991 translate([0, -phone_cnr_rad, 0])
993 linear_extrude(height = phone_height + phone_cnr_rad * 2)
996 rectfromto([ -keeper_gap_x, -keeper_gap_z_bot ],
997 [ keeper_gap_x_holes, +keeper_gap_z_top ]);
1001 RearCameraAperture();
1003 // struts (invisible, because they're buried in the case)
1004 Struts(epp2i[0], epp2i[1] - case_th_bottom, case_th_bottom);
1009 if (!($button_leg_only && enable_support))
1011 translate([0,0,-10])
1012 linear_extrude(height= 20)
1013 ButtonPlan($button_l, 0,1);
1014 if ($button_leg_only)
1016 translate([phone_width/2, -400, kppe[1]])
1017 mirror([1-abs($rhsflip - keeper_side),0,0])
1018 cube([400, 800, 50]);
1019 if (enable_support && !$button_suppress_over_keeper)
1021 translate([-400, -400, kppd[1]])
1023 cube([800,800,100]);
1025 translate([0,0, -bppR[0]])
1026 linear_extrude(height= 20)
1027 ButtonPlan($button_l, 1,1);
1032 // apertures along top edge
1033 CaseAperture(jack_pos, jack_dia, 8);
1035 CaseAperture(noisecancelmic_pos, noisecancelmic_dia, 8);
1037 OrdinaryRearApertures();
1041 // gaps for the lid's hinge arms
1042 HingePortion(hex20 - hinge_x_arms_gap,
1043 hex21 + hinge_x_arms_gap)
1046 circle(r= hinge_r_arms_gap, $fn= 8);
1049 // screw holes in the hinge arms
1053 CatchPortion(catch_width + catch_side_gap*2)
1058 translate([prop_x_pos,0,0])
1061 linextr(-prop_recess_hw, +prop_recess_hw)
1063 for (d=[ [0,0], [0,-1], [+1,-1/prop_caserecess_taper] ])
1064 circleat(prcp1 + 20*d,
1070 module LidAdhocMultiprintFrame(phase){
1071 if (led_window_style >= 3) {
1072 AdhocMultiprintFrame(phase, lpp13[1], -1);
1076 module LidAroundEdges(){
1077 AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
1081 module Lid(){ ////toplevel
1082 skew_centre = [0, lpp11[0], lpp11[1]];
1089 translate(skew_centre)
1090 multmatrix([[ 1, 0, 0, 0 ],
1091 [ 0, 1, -lid_fold_clearance_skew, 0 ],
1094 translate(-skew_centre)
1096 LidEdgeFoldClearanceProfile();
1103 translate([0,0,-10])
1104 linear_extrude(height= 20)
1105 ButtonPlan($button_l, 1,0);
1107 translate([0,0,-100])
1108 linear_extrude(height= 200)
1109 ButtonCoverProfile();
1114 HingePortion(hex20, hex21) {
1120 CatchPortion(catch_width)
1121 CatchCatchProfile();
1123 Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid);
1125 // screw holes in the hinge arms
1129 translate([prop_x_pos, -prlp10[0], prlp10[1]])
1132 linextr(-prop_recess_hw, +prop_recess_hw)
1134 for (pa = prop_angles)
1135 PropProfile(pa, 1,1);
1137 // notification led aperture
1138 if (led_window_style)
1139 translate([led_pos[0], -led_pos[1], lpp13[1]]) {
1140 translate([0,0,-10])
1141 cylinder(r=nla_r0, h=20);
1142 if (led_window_style >= 2)
1143 translate([0,0, -nla_t])
1144 cylinder(r=nla_r2, height=20);
1149 LidAdhocMultiprintFrame(1);
1152 module HingeLever(){ ////toplevel
1154 // outer body, positive
1155 HingePortion(hex22, hex22 + phone_width/2)
1156 HingeLeverOuterProfile();
1158 // space for the screws
1159 HingePortion(hex26, hex24)
1160 HingeLeverInnerProfile();
1162 // recesses for the nuts
1163 HingePortion(hex23, hex26+1)
1164 HingeLeverNutProfile();
1166 // bores for the screws
1169 // space for the charging cable
1171 Flip_hinge() MicroUSB();
1175 module LidWindow(){ ////toplevel
1176 translate([led_pos[0], -led_pos[1], lpp13[1]])
1178 cylinder(r= nla_r1, h=nla_t);
1179 LidAdhocMultiprintFrame(0);
1182 module LidWindowPrint(){ ////toplevel
1187 module DemoLidWindowSelect(){
1188 translate([led_pos[0], led_pos[1], -100]) {
1189 translate([0, -30, 0]) cube([400, 400, 200]);
1193 module DemoLidWindow(){ ////toplevel
1196 translate([0,40,0]){
1197 color("blue") intersection(){ Lid(); DemoLidWindowSelect(); }
1198 color("red") intersection(){ LidWindow(); DemoLidWindowSelect(); }
1202 module HingeLeverPrint(){ ////toplevel
1204 translate([-phone_width/2, phone_height, 0])
1208 module TestSelectLength(){
1209 translate([-30, -200, -20])
1210 cube([30 + 15, 250, 40]);
1213 module TestLength(){ ////toplevel
1220 module TestLengthRight(){ ////toplevel
1228 module TestSelectWidth(){
1229 translate([-30, -(phone_height - 25), -20])
1231 cube([200, 50, 40]);
1234 module TestWidth(){ ////toplevel
1241 module TestLidWidthPrint(){ ////toplevel
1242 rotate([0,180.0]) intersection(){
1248 module TestSelectRearAperture(){
1251 translate([20, 0,0])
1252 cube([42, 2, 1], center=true);
1256 module TestSelectCamera(){
1258 TestSelectRearAperture()
1259 RearCameraAperture();
1260 cube([0.1, 50, 0.1]);
1264 module TestSelectOrdinaryRearApertures(){
1265 TestSelectRearAperture()
1266 OrdinaryRearApertures();
1269 module TestCamera(){ ////toplevel
1276 module TestLidByCamera(){ ////toplevel
1283 module TestLidByCameraPrint(){ ////toplevel
1284 rotate([180,0,0]) TestLidByCamera();
1287 module DemoByCamera(){ ////toplevel
1288 color("blue") TestLidByCamera();
1289 color("red") TestCamera();
1292 module OneKeeper(){ ////toplevel
1293 translate([0, -phone_cnr_rad, 0])
1295 linear_extrude(height = phone_height - phone_cnr_rad * 2)
1299 module OneKeeperPrint(){ ////toplevel
1304 module LidPrint(){ ////toplevel
1309 module TestSelectFrame(){
1310 include = [1,-1] * (epp2i[0] + 4);
1313 cube(1000, center=true);
1314 translate([0,0, -100])
1315 linear_extrude(height=200)
1316 rectfromto(include, inside_br - include);
1320 module TestSelectLidFrame(){
1322 translate([led_pos[0], -led_pos[1], -50])
1323 cylinder(r= nla_r2+3, h=100);
1326 module TestFrameCase(){ ////toplevel
1332 TestSelectOrdinaryRearApertures();
1337 module TestSelectTopApertures(){
1338 translate([-100, -35, -100])
1339 cube([400, 100, 200]);
1340 LidAdhocMultiprintFrame(0);
1341 LidAdhocMultiprintFrame(1);
1344 module TestTopApertures(){ ////toplevel
1348 TestSelectTopApertures();
1352 module TestLidTopAperturesPrint(){ ////toplevel
1353 rotate([0,180,0]) intersection(){
1355 TestSelectLidFrame();
1356 TestSelectTopApertures();
1360 module TestLidWindowTopAperturesPrint(){ ////toplevel
1361 rotate([0,180,0]) intersection(){
1363 TestSelectTopApertures();
1367 module TestFrameLidPrint(){ ////toplevel
1368 rotate([0,180,0]) intersection(){
1370 TestSelectLidFrame();
1374 module ButtonPlanForDemo(z, deep, cut){
1376 ButtonPlan(8, deep, cut);
1379 module HingeScrews(){
1380 Flip_rhs() Flip_bot(1){
1381 for (c= [ hppT, hppB ])
1386 translate([0,0,-.2])
1387 cylinder( r= hingescrew_shaft_dia/2,
1388 h = hingescrew_shaft_len+0.2 );
1390 translate([0,0,+.1])
1391 cylinder( r= hingescrew_head_dia/2, h = hingescrew_head_th );
1396 module DemoPropAngleSelect(c){
1397 color(c) difference(){
1398 union(){ children(); }
1399 translate([ prop_x_pos, -400, -200 ])
1400 cube([ 400,800,400 ]);
1404 module DemoPropAngle(ang){
1405 hL = [0, -(phone_height - hppT[0]), hppT[1] - hp_k*2];
1406 hC = [0, -(phone_height - hppB[0]), hppB[1]];
1414 DemoPropAngleSelect("red") Case();
1417 translate([prop_x_pos, -prcp1[0], prcp1[1]])
1418 PropProfileAssignments(ang) {
1420 rotate([-$prp_theta, 0, 0])
1421 translate([0, $prpp1[0], -$prpp1[1]])
1427 translate([0,0, -hp_k*2])
1428 DemoPropAngleSelect("blue")
1432 module DemoPropAngles(){ ////toplevel
1433 for (i=[0 : len(prop_angles)-1])
1434 translate(i * [0, -100, 100])
1435 DemoPropAngle(prop_angles[i]);
1438 module DemoHingeAngle(ang1,ang2){
1439 hL = [0, -(phone_height - hppT[0]), hppT[1]];
1440 hC = [0, -(phone_height - hppB[0]), hppB[1]];
1451 color("blue") intersection(){
1454 translate([bppJ[0], -400, -200])
1456 cube([400, 800, 400]);
1457 translate([10, -400, -200])
1458 cube([10, 800, 400]);
1463 module DemoHingeAngles(){ ////toplevel
1464 angles = [ 0, 4, 8, 12 ];
1465 echo("angles",angles);
1466 for (i=[0 : len(angles)-1]) {
1467 translate(i * [0, 0, 30]) {
1468 DemoHingeAngle(0,angles[i]);
1469 translate([0, 200, 0])
1470 DemoHingeAngle(angles[i],0);
1475 module DemoSelectAdhocLeftRight(right=0) {
1476 translate([phone_width/2, -400, -100]) // , -15, -100 to cross-section
1477 mirror([1-right, 0,0])
1478 cube([400, 800, 200]);
1481 module DemoLeft(){ ////toplevel
1482 color("red") intersection(){ Case(); DemoSelectAdhocLeftRight(); }
1483 color("blue") intersection(){ Lid(); DemoSelectAdhocLeftRight(); }
1486 module DemoFrame(){ ////toplevel
1487 color("red") TestFrameCase();
1488 color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
1489 color("black") HingeScrews();
1493 module DemoHingedFrame(){ ///toplevel
1494 color("red") TestFrameCase();
1495 translate([0,0, -2*hp_k])
1496 color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
1499 color("orange") HingeLever();
1500 color("black") HingeScrews();
1504 module DemoHinge(){ ////toplevel
1505 translate([ -0.5*phone_width, phone_height, hp_k*3 ]) {
1507 translate([0,0, -hp_k*3])
1512 module DemoProfiles(){ ////toplevel
1516 translate([0,0,-1]) color("black") KeeperProfile(1);
1522 demopoint_QR = [ bppS[0], bppQ[1] - 0.1];
1524 color("blue") ButtonCoverProfile();
1526 rectfromto(bppQ, demopoint_QR);
1527 rectfromto(bppR, demopoint_QR);
1531 translate([-20,0]) {
1532 color("black") ButtonPlanForDemo(-2, 0,1);
1533 color("red" ) ButtonPlanForDemo(-4, 1,1);
1534 color("blue") ButtonPlanForDemo(-6, 1,0);
1537 translate([0, -30]) {
1540 color("blue") HingeLidProfile();
1541 color("red") HingeBaseProfile();
1542 color("black") translate([0,0,-2]) HingeLeverOuterProfile();
1546 translate([-30, -60 + 30*f]) {
1547 translate([0,0,-4]) EdgeProfile();
1548 %translate([0,0,-10]) HingeBaseProfile();
1549 translate([0,-2] * f * hp_k) {
1550 translate([0,0,-4]) LidEdgeProfile();
1551 %translate([0,0,-10]) %HingeLidProfile();
1553 translate(+hppB) rotate([0,0,180*f]) translate(-hppB) {
1554 translate([0,0,-2]) color("black") HingeLeverOuterProfile();
1555 translate([0,0,0]) color("red") difference(){
1556 HingeLeverOuterProfile();
1557 HingeLeverInnerProfile();
1559 translate([0,0,3]) color("yellow") HingeLeverNutProfile();
1564 translate([20,-30]) {
1567 //translate([0,0,1]) CatchCutProfile();
1568 color("blue") CatchCatchProfile();
1569 color("red") difference(){ EdgeProfile(); CatchCutProfile(); }
1572 translate([40,-30]) {
1576 PropProfile(10, 1, 0);
1581 translate([60,-30]) {
1582 PropAggregateProfile();