// -*- C -*-
+// Hard case for Fairphone 2
+//
+// Copyright 2018 Ian Jackson. There is NO WARRANTY.
+// See below for full licensing and disclaimer.
+//
+// Instructions
+//
+// 1. You will want to git clone this repository.
+//
+// 2. Decide about the notification LED aperture. See the variable
+// led_window_style, below. The default here is "ad-hoc
+// multi-colour", which can produces a translucent (clear-ish)
+// window set into the lid, even on a single-nozzle printer.
+// See "Ad-hoc multi-colour", below.
+//
+// 3. use "make" to generate the necessary files:
+//
+// make -j8 fairphone-case.auto.scads `for f in \
+// HingePrint \
+// LidWindowPrint \
+// LidPrint \
+// OneKeeperPrint \
+// Case \
+// ; do echo fairphone-case,$f.auto.stl; done`
+//
+// 4. Print them. Case and OneKeeperPrint should probably be
+// the same colour.
+//
+// For Lid and LidWindowPrint, if you are doing ad-hoc
+// multi-colour:
+// i. Set up for clear filament
+// ii. Print LidWindowPrint. Wait for it to finish.
+// It won't take long. As soon as it finishes, tell
+// your printer to warm up (so that in fact it does
+// not cool down).
+// iii. Leaving the output so far on the printbed, reload
+// your printer with the main lid colour.
+// iv. Print LidPrint. You can let this go unattended.
+//
+// 5. Assemble the hinge. You will need 4x M2 12mm machine screws
+// and 8x M2 full nuts.
+//
+// Make sure you get the hinge the right way round. If you're not
+// sure, run
+// openscad fairphone-case,DemoHinge.auto.scad
+// to see an assembly diagram.
+//
+// The nuts recess into the hinge. You will want very fine
+// pliers. As you screw each screw in, add the second nut when
+// the screw thread emerges from the first - this will be a
+// locknut. Screw each screw to an appropriate tightness for the
+// hinge stiffness. You want the lid-side hinge to be stiffer as
+// that makes closing the case work better.
+//
+// When you have the stiffness right, tighten the locknuts onto
+// each first nut.
+//
+// 6. In use:
+//
+// - To put the phone in, drop its RH side into the RH side of
+// the case. Then feed the keeper through the small hole.
+// Feed it right through.
+//
+// - The optional prop can be used to prop the phone up (in
+// portrait orientation only right now). See
+// openscad fairphone-case,DemoPropAngles.auto.scad
+//
+// Ad-hoc multi-colour
+//
+// This file is set up to let you make a translucent window using a
+// single-extruder printer, using a "two print run" technique. This
+// works well with our Lulzbot TAZ 5 and Aleph Objects' version of
+// Cura. If you are using a different printer, you may need to
+// adjust the parameters or try a different technique. In particular,
+// initial_layer_thick
+// set so that the window is one layer thick
+// initial_layer_width
+// set so that the slicer draws a rectangle around the whole
+// object, rather than putting a "skirt" or anything inside
+//
+// If you have a dual-extruder printer, you can set led_window_style
+// to 2 and do a single print of LidPrint and LidWindowPrint.
+//
+// Alternatively you can set it to 1 (just a hole) or 0 (no hole).
+//
+// Thanks to Clare Boothby for the ad-hoc multi-colour technique (and
+// the parameters for our Lulzbot TAZ 5 and Aleph Objects's Cura).
+//
+// Other phones
+//
+// It might well be possible to adapt this file for other phones.
+// If you do, let me know how you get on.
+//
+//
+// AUTHORSHIP, COPYRIGHT, LICENCE, AND LACK OF WARRANTY
+//
+// Copyright (C)2018 Ian Jackson.
+//
+// This program for generating a 3D model is free software: you can
+// redistribute it and/or modify it under the terms of the GNU
+// General Public License as published by the Free Software
+// Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public
+// License along with this program. If not, see
+// <http://www.gnu.org/licenses/>.
+//
+// In particular DO NOT BLAME ME IF THIS CASE DOES NOT ADEQUATELY
+// PROTECT YOUR PHONE ! It is your responsibility to decide whether
+// this case will meet your needs.
+
include <utils.scad>
+include <funcs.scad>
phone = [ 75.0, 145.0 ];
//fingerpushhole_dias = [ 15, 18 ];
fingerpushhole_dias = [];
+lanyard_half_dia = 1.15;
+lanyard_entry_rel_breadth = 2;
+lanyard_channel_len = 15;
rearspeaker_pos_bl = [ 12.64, 18.72 ];
rearspeaker_size = [ 3.76, 7.36 ];
case_th_bottom = 2.5;
case_th_lid = 3.0;
-case_th_side = 2;
+case_th_side = 2.3;
case_th_lip = 1.2;
lid_screen_gap_extra = .66;
lid_gap_x = 0.25;
lid_gap_z = 0.25;
lid_lip = 1.75;
-
-catch_slop = 0.50;
+lid_edgepart_width = 5.0;
+lid_buttoncover_thick = 1.3;
+lid_buttoncover_reinf = 0.65;
foldover_gap = 0.50;
foldover_lever_gap = 0.50;
rearspeaker_gap = [ 2.0, 2.0 ]; // each side
-catch_len = 7.5;
+catch_slop = -0.75;
+
+catch_len = 4.5;
catch_width = 15;
-catch_thickness = 1.0;
+catch_thickness = 1.3;
catch_side_gap = 0.75; // each side
catch_depth = 0.75;
catch_height = 0.35;
catch_finger_height = 1.5;
catch_finger_depth = 2.5;
+catch_catch_slope = 2.00;
+catch_close_slope = 3.00;
+
+catch_topcurve_r = 5.0;
prop_recess_under = 0.50;
prop_recess_slop = 0.200; // each side
prop_prop_gap = 0.5;
prop_prong_heel_slope = 0.5;
+lid_fold_clearance_antislop = 0.5;
+
// ---------- calculated ----------
phone_width = (phone + bumper*2)[0];
lpp10 = [ epp5[0] + lid_gap_x, kppc[1] + lid_gap_z ];
lpp11 = [ lpp10[0], epp5[1] + lid_gap_z ];
-lpp14 = lpp10 + [1,0] * keeper_inner_width;
+lpp14 = lpp10 + [1,0] * max(keeper_inner_width, lid_edgepart_width);
// exact x posn not very important; must extend past end of keeper
lpp15 = [ lpp14[0],
// button profile
bppM = epp4 + [0,5];
-bppN = [ 0.5 * (epp0[0] + epp4[0]), bppM[1] ];
+bppN = [ bppM[0] + lid_buttoncover_thick, bppM[1] ];
bppR = [ bppN[0] + lid_buttoncover_gap, -button_cutout_depth ];
bppS = [ epp1[0], bppR[1] ];
bppQ = [ bppM[0], bppR[1] - lid_buttoncover_overlap ];
bppV = lpp11;
bppW = lpp10;
+echo("BUTTON COVER TH", bppO[0] - bppP[0]);
+
// notification led aperture
nla_r0 = led_aperture/2;
chk(hex23, 13.74);
chk(hex24, 18.75);
+lid_fold_clearance_skew =
+ (lpp10[1] - hppB[1]) /
+ (lpp10[0] - hppB[0]);
+
+echo("SK",lid_fold_clearance_skew);
+
// catch
cppJ = [ epp4[0] + catch_thickness, lpp10[1] ];
cppS = cppJ + [0,-1] * catch_len;
cppD = [ cppA[0], cppS[1] + catch_slop ];
cppC = [ cppB[0], cppD[1] ];
-cppT = cppS + [1,0] * catch_depth;
+cppT = cppS + [1, -catch_catch_slope] * catch_depth;
cppU = cppT + [0,-1] * catch_height;
-cppV = [ cppS[0], cppU[1] - catch_depth ];
+cppV = [ cppS[0], cppU[1] - catch_depth * catch_close_slope ];
cppR = 0.5*(cppP + cppJ);
cppV[1] - (catch_finger_height - cp_rQ) ];
cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
+// lanyard
+
+ly_r = lanyard_half_dia / 2;
+ly_rc = ly_r * 2;
+
+ly_theta = -atan2vector(epp2i - epp1);
+ly_o = epp2i + 3 * ly_r * unitvector2d(epp1 - epp2i);
+
+max_case_bottom_edge_thickness =
+ case_th_bottom
+ + sin(ly_theta) * (epp2i-epp2o)[0];
+
+ly_q_z = -(ly_rc + ly_r);
+ly_re = max_case_bottom_edge_thickness - (-ly_q_z);
+
+ly_oec_y = lanyard_entry_rel_breadth * ly_r;
+
// prop recess in case
prop_x_pos = phone_width/2;
module AdhocMultiprintFrame(phase, z0, zs) {
// from z0 to z0 + zs*layer
- extra = phase * 0.65 + 5;
+ extra = phase * (initial_layer_width + multicolour_gap) + 5;
xextra = extra + -epp4[0];
xrange = [ 0, phone_width ] + [-1,+1] * xextra;
yextra = extra + -epp4[0];
}
}
+module LanyardLanyardProfile(entry=false){
+ hull(){
+ for (xs=[-1,+1] * (entry ? lanyard_entry_rel_breadth : 1))
+ translate(xs * 0.5 * lanyard_half_dia * [1,0])
+ circle(r= lanyard_half_dia/2);
+ }
+}
+
+module LanyardCurveChannelProfile(){
+ translate([0, -ly_r])
+ LanyardLanyardProfile();
+}
+
+module LanyardEntryChannelProfile(){
+ LanyardLanyardProfile(true);
+}
+
+module LanyardMainChannelProfile(){
+ LanyardCurveChannelProfile();
+ difference(){
+ square(center=true, ly_r * [6, 2]);
+ for (xs=[-1,+1])
+ translate(ly_r * [3 * xs, -1])
+ circle(r = ly_r);
+ }
+}
+
+module LanyardEntryOuterProfile(){
+ circleat([ly_re + ly_r, 0], ly_re);
+}
+
+module LanyardEntry(){
+ q_z = ly_q_z;
+ oec_y = ly_oec_y;
+
+ d_x = -ly_rc;
+
+ translate([d_x, 0, q_z]) {
+ intersection(){
+ rotate([90,0,0])
+ rotate_extrude(convexity=10)
+ rotate(90)
+ translate([0, -q_z])
+ LanyardCurveChannelProfile();
+ translate([0,-10,0])
+ cube([20,20,20]);
+ }
+ }
+
+ mirror([0,0,1])
+ translate([0,0,-1])
+ linear_extrude(height=20)
+ rotate(-90)
+ LanyardEntryChannelProfile();
+
+ translate([0, ly_r*2, 0])
+ rotate([90,0,0])
+ linear_extrude(height = ly_r*4){
+ difference(){
+ rectfromto([d_x, q_z], [ly_r, 0]);
+ circleat([d_x, q_z], ly_rc);
+ }
+ }
+
+ translate([0,0,q_z]){
+ for (my=[0,1])
+ mirror([0,my,0]){
+ translate([0, oec_y, 0]){
+ difference(){
+ translate(ly_re * [-1,0,-2])
+ cube(ly_re * [2,1,2]);
+ rotate_extrude(convexity=10)
+ LanyardEntryOuterProfile();
+ }
+ }
+ }
+ difference(){
+ translate([-ly_re, -(oec_y + 0.01), -2*ly_re])
+ cube([ly_re*2, 2*(oec_y + 0.01), 2*ly_re]);
+ for (mx=[0,1])
+ mirror([mx,0,0])
+ rotate([90,0,0])
+ translate([0,0,-10])
+ linear_extrude(height=20)
+ LanyardEntryOuterProfile();
+ }
+ }
+}
+
+module LanyardCutout(l){
+ rotate([0,-90,0])
+ linear_extrude(height=l)
+ rotate(-90)
+ LanyardMainChannelProfile();
+
+ for (ee=[0,1]){
+ translate(ee * l * [-1,0])
+ mirror([ee,0,0])
+ LanyardEntry();
+ }
+}
+
module LidEdgeProfile(){
polygon([ lpp10,
lpp11,
}
}
+module LidEdgeFoldClearanceProfile(){
+ translate([-lid_fold_clearance_antislop, 0])
+ polygon([ lpp10,
+ lpp11,
+ lpp11 + [-20, 0],
+ lpp11 + [-20, 20],
+ lpp11 + [+20, 20],
+ lpp10 + [+20, 0] ]);
+}
+
module ButtonCoverProfile(){
intersection(){
polygon(concat([ bppM, bppP, bppO, bppJ ],
}
}
+module ButtonCoverReinf(){ ////toplevel
+ minkowski(){
+ rotate([90,0,0])
+ linear_extrude(height=0.01)
+ intersection(){
+ ButtonCoverProfile();
+ translate([bppJ[0] + 0.1, -50]) mirror([1,0])
+ square([100,100]);
+ }
+ mirror([0,0,1]) linear_extrude(height=0.01) intersection(){
+ circle(r= lid_buttoncover_reinf);
+ translate([-20,0]) square(40, center=true);
+ }
+ }
+}
+
module CatchCatchProfile(){
hull(){
for (c=[ cppR, cppQ ])
mirror([1,0,0])
rotate([90,0,-90])
linear_extrude(height=x1-x0)
- children(0);
+ children();
}
-module CatchPortion(width){
- translate([phone_width/2, 0,0])
- rotate([90,0,-90])
- linextr(-width/2, width/2)
- children(0);
+module CatchPortion(xwidth, ztop){
+ width = catch_width + xwidth;
+ w = width + catch_topcurve_r*2 + 1;
+ translate([phone_width/2, 0,0]){
+ difference(){
+ rotate([90,0,-90])
+ linextr(-w/2, w/2)
+ children(0);
+ translate([0, 50, 0])
+ rotate([90,0,0])
+ linear_extrude(height=100){
+ for (m=[0,1]) mirror([m,0,0]) {
+ hull(){
+ translate([w/2, ztop - catch_topcurve_r])
+ circle(catch_topcurve_r);
+ translate([w/2, -50])
+ square(catch_topcurve_r*2, center=true);
+ }
+ }
+ }
+ }
+ }
}
module CaseBase(){
children();
}
-module PropProfile(gamma, cut=0, rot=0){ ////toplevel
+module PropProfile(gamma, cut=0, rot=0){
PropProfileAssignments(gamma){
//#circleat($prpp3,1);
HingeScrews();
// catch striker
- CatchPortion(catch_width + catch_side_gap*2)
+ CatchPortion(catch_side_gap*2, epp4[1])
CatchCutProfile();
+ // lanyard
+ Flip_bot(1)
+ translate([ly_o[0], -(phone_cnr_rad + ly_re), ly_o[1]])
+ rotate([0, ly_theta, 0])
+ rotate([0,0,90])
+ LanyardCutout(lanyard_channel_len);
+
// prop recess
Flip_rhs(1)
translate([prop_x_pos,0,0])
}
}
+module LidAroundEdges(){
+ AroundEdges(lpp15[1], lpp13[1] - lpp15[1], 0)
+ children();
+}
+
module Lid(){ ////toplevel
+ skew_centre = [0, lpp11[0], lpp11[1]];
difference(){
union(){
- AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
- LidEdgeProfile();
+ intersection(){
+ LidAroundEdges()
+ LidEdgeProfile();
+
+ translate(skew_centre)
+ multmatrix([[ 1, 0, 0, 0 ],
+ [ 0, 1, -lid_fold_clearance_skew, 0 ],
+ [ 0, 0, 1, 0 ],
+ [ 0, 0, 0, 1 ]])
+ translate(-skew_centre)
+ LidAroundEdges()
+ LidEdgeFoldClearanceProfile();
+ }
// button covers
Buttons(){
translate([0,0,-10])
linear_extrude(height= 20)
ButtonPlan($button_l, 1,0);
- rotate([90,0,0])
- translate([0,0,-100])
- linear_extrude(height= 200)
- ButtonCoverProfile();
+ union(){
+ rotate([90,0,0])
+ translate([0,0,-100])
+ linear_extrude(height= 200)
+ ButtonCoverProfile();
+ hull()
+ for (y= [-1,+1] * (($button_l + button_l_fudge)/2
+ - lid_buttoncover_reinf))
+ translate([0,y,0])
+ ButtonCoverReinf();
+ }
}
}
// hinge arms
- HingePortion(hex20, hex21) HingeLidProfile();
+ HingePortion(hex20, hex21) {
+ LidEdgeProfile();
+ HingeLidProfile();
+ }
// catch
- CatchPortion(catch_width)
+ CatchPortion(0, lpp12[1])
CatchCatchProfile();
}
Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid);
module TestSelectLidFrame(){
TestSelectFrame();
translate([led_pos[0], -led_pos[1], -50])
- cylinder(r= nla_r2+2, h=100);
+ cylinder(r= nla_r2+3, h=100);
}
module TestFrameCase(){ ////toplevel
module TestSelectTopApertures(){
translate([-100, -35, -100])
cube([400, 100, 200]);
+ LidAdhocMultiprintFrame(0);
+ LidAdhocMultiprintFrame(1);
}
module TestTopApertures(){ ////toplevel
module TestLidTopAperturesPrint(){ ////toplevel
rotate([0,180,0]) intersection(){
Lid();
+ TestSelectLidFrame();
TestSelectTopApertures();
}
}
DemoPropAngle(prop_angles[i]);
}
+module DemoHingeAngle(ang1,ang2){
+ hL = [0, -(phone_height - hppT[0]), hppT[1]];
+ hC = [0, -(phone_height - hppB[0]), hppB[1]];
+
+ translate(hL)
+ rotate([ang2,0,0])
+ translate(-hL)
+ translate(hC)
+ rotate([ang1,0,0])
+ translate(-hC) {
+ color("red") Lid();
+ }
+
+ color("blue") intersection(){
+ Case();
+ union(){
+ translate([bppJ[0], -400, -200])
+ mirror([1,0,0])
+ cube([400, 800, 400]);
+ translate([10, -400, -200])
+ cube([10, 800, 400]);
+ }
+ }
+}
+
+module DemoHingeAngles(){ ////toplevel
+ angles = [ 0, 4, 8, 12 ];
+ echo("angles",angles);
+ for (i=[0 : len(angles)-1]) {
+ translate(i * [0, 0, 30]) {
+ DemoHingeAngle(0,angles[i]);
+ translate([0, 200, 0])
+ DemoHingeAngle(angles[i],0);
+ }
+ }
+}
+
module DemoSelectAdhocLeftRight(right=0) {
translate([phone_width/2, -400, -100]) // , -15, -100 to cross-section
mirror([1-right, 0,0])
%HingeLever();
}
+module DemoLanyardCutout(){ ////toplevel
+ LanyardCutout(25);
+}
+
module DemoHingedFrame(){ ///toplevel
color("red") TestFrameCase();
translate([0,0, -2*hp_k])
%EdgeProfile();
KeeperProfile();
translate([0,0,-1]) color("black") KeeperProfile(1);
+ translate(ly_o){
+ rotate(-ly_theta){
+ translate([0,0,+1]) color("purple") LanyardMainChannelProfile();
+ translate([0,0,+2]) color("red") LanyardCurveChannelProfile();
+ translate([0, ly_q_z]){
+ translate([0,0,-1]) color("blue") LanyardEntryChannelProfile();
+ translate([ly_oec_y,0,-2]) color("black") LanyardEntryOuterProfile();
+ }
+ }
+ }
+ translate([0,0,-5]) color("white") translate(epp2i)
+ rotate(-ly_theta)
+ rectfromto([-15, 0],
+ [+15, -max_case_bottom_edge_thickness]);
+
+ translate([0,20]) {
+ LanyardMainChannelProfile();
+ translate([0,0,1]) color("purple") LanyardCurveChannelProfile();
+ translate([0,0,-1]) color("red") LanyardEntryChannelProfile();
+ }
translate([20,0]) {
LidEdgeProfile();
%EdgeProfile();
%LidEdgeProfile();
//translate([0,0,1]) CatchCutProfile();
+ translate([0,0,+1]) color("red")
+ difference(){ EdgeProfile(); CatchCutProfile(); }
color("blue") CatchCatchProfile();
- color("red") difference(){ EdgeProfile(); CatchCutProfile(); }
}
translate([40,-30]) {
~ianmdlvl / reprap-play.git / blobdiff