X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=fairphone-case.scad;h=fcc027ed14b9101e588014ddf7c9a9d989d12d1f;hp=540148df02ff15dee64e76755a7764a88c9152e5;hb=062ada165d5387a09997102172edb523394a7609;hpb=cc47fa303e6c1bc283457cecd3b6ef33a60fdde0
diff --git a/fairphone-case.scad b/fairphone-case.scad
index 540148d..fcc027e 100644
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -1,5 +1,122 @@
// -*- 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
+// .
+//
+// 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
phone = [ 75.0, 145.0 ];
@@ -87,6 +204,7 @@ case_lip = 1.25;
lid_gap_x = 0.25;
lid_gap_z = 0.25;
lid_lip = 1.75;
+lid_edgepart_width = 5.0;
catch_slop = 0.50;
@@ -153,6 +271,8 @@ prop_caserecess_taper = 0.45; // one side only
prop_prop_gap = 0.5;
prop_prong_heel_slope = 0.5;
+lid_fold_clearance_antislop = 0.5;
+
// ---------- calculated ----------
phone_width = (phone + bumper*2)[0];
@@ -199,7 +319,7 @@ kppa = [ kppb[0], kppf[1] ];
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],
@@ -291,6 +411,12 @@ chk(hex22, 10.9975);
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] ];
@@ -404,6 +530,16 @@ module LidEdgeProfile(){
}
}
+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 ],
@@ -707,7 +843,7 @@ module HingePortion(x0,x1){
mirror([1,0,0])
rotate([90,0,-90])
linear_extrude(height=x1-x0)
- children(0);
+ children();
}
module CatchPortion(width){
@@ -938,11 +1074,28 @@ module LidAdhocMultiprintFrame(phase){
}
}
+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(){
@@ -959,7 +1112,10 @@ module Lid(){ ////toplevel
}
// hinge arms
- HingePortion(hex20, hex21) HingeLidProfile();
+ HingePortion(hex20, hex21) {
+ LidEdgeProfile();
+ HingeLidProfile();
+ }
// catch
CatchPortion(catch_width)
@@ -1165,7 +1321,7 @@ module TestSelectFrame(){
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
@@ -1197,6 +1353,7 @@ module TestTopApertures(){ ////toplevel
module TestLidTopAperturesPrint(){ ////toplevel
rotate([0,180,0]) intersection(){
Lid();
+ TestSelectLidFrame();
TestSelectTopApertures();
}
}
@@ -1279,6 +1436,43 @@ module DemoPropAngles(){ ////toplevel
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])