X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=fairphone-case.scad;h=254abcf88cce30849c424cc024fce32a46b6dd80;hb=5b0034c7374fa1545a2656b2c18030532de5e395;hp=423adb1528838329ed072c4f82505de219624919;hpb=781807d1c5bcf67be64fbe340a8caad12e477e03;p=reprap-play.git diff --git a/fairphone-case.scad b/fairphone-case.scad index 423adb1..254abcf 100644 --- a/fairphone-case.scad +++ b/fairphone-case.scad @@ -1,7 +1,10 @@ // -*- C -*- -phone_height = 146.5 - .80; -phone_width = 76.75; +phone = [ 145.0, 75.0 ]; + +bumpers = [ 1.5, 1.75 ]; +// ^ both sides together. +// If no bumpers, is the gap around the phone. phone_cnr_rad = 6.0; @@ -13,7 +16,7 @@ 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 +camera_pos_br = [ 22.85,37.85]; // tl/br as seen from back case_th_bottom = 2.5; case_th_lid = 2.5; @@ -21,14 +24,15 @@ 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_solid_below = 1.00; +case_struts_solid_above = 0.75; case_struts_width = 0.10; keeper_th_z = 0.75; keeper_th_x = 0.75; -keeper_inner_width = 1.75; -keeper_inner_height = 1.75; +keeper_inner_width = 2.75; +keeper_inner_height = 2.75; +keeper_slant_slope = 2; // larger means steeper keeper_gap_z_top = 0.25; keeper_gap_z_bot = 0.75; @@ -44,8 +48,15 @@ lid_lip = 1.75; $fa = 5; $fs = 0.1; +button_l_fudge = 4.5; + +strut_min_at_end = 1.5; + // ---------- calculated ---------- +phone_height = (phone + bumpers)[0]; +phone_width = (phone + bumpers)[1]; + // ----- could be changed ----- lid_buttoncover_gap = lid_gap_x; lid_buttoncover_overlap = case_th_lip + keeper_gap_z_top; @@ -72,8 +83,13 @@ 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 ]; + +lp_r12 = case_th_lid - (lpp11[1] - lpp10[1]); + +lpp12 = [ epp4[0] + lp_r12, lpp11[1] ]; +lpp13 = [ lpp12[0], lpp12[1] + lp_r12 ]; + +echo(lpp13 - lpp10); // button profile bppM = epp4 + [0,5]; @@ -94,8 +110,9 @@ module rectfromto(a,b) { } module circleat(c,r) { translate(c) circle(r); } -module KeeperProfile(){ - polygon([kppe, kppd, kppc, kppb, kppa, kppf]); +module KeeperProfile(slant=0){ + use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope; + polygon([use_e, kppd, kppc, kppb, kppa, kppf]); } module EdgeProfile(){ @@ -122,7 +139,7 @@ module LidEdgeProfile(){ lpp10 + [10, 0] ]); intersection(){ - circleat(lpp12, r=lid_lip); + circleat(lpp12, r=lp_r12); rectfromto( lpp12 + [-10, 0], lpp12 + [+10, +10] ); } @@ -139,43 +156,47 @@ module ButtonCoverProfile(){ } module ButtonPlan(l, deep, cut){ - bigger = - (deep ? lid_buttoncover_overlap : 0) + - (cut ? 0 : -lid_buttoncover_gap); - - d_D1_y = + epsilon = (cut ? 0 : lid_buttoncover_gap); + delta = + (deep ? lid_buttoncover_overlap : 0); + C = [0,0]; // by definition T = [ 0, epp4[1] ]; G = T + [0,10]; + B0 = C + [0,-1] * button_cutout_depth; + B1 = B0 + [0,1] * epsilon; + 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 + d_D1_y - // => 4 * r1^2 = (r1-r0 + d_D1_y)^2 + (D1_x - A_x)^2 - // => D1_x = A_x + v/~ [ 4 * r1^2 - (r1-r0 + d_D1_y)^2 ] - D1 = [ A[0] + sqrt( 4*r1*r1 - pow(bigger + d_D1_y, 2) ), - T[1] - r1 + d_D1_y ]; - E1 = 0.5 * (D1 + A); - F1 = D1 + [0,10]; + A = [ -(l + button_l_fudge)/2 + r0, 0.5 * (T[1] + B0[1]) ]; + H = A + [0,-1] * delta; + + D = A + [-2,0] * r0; + F = D + [0,10]; + + E0 = 0.5 * (D + A); + E1 = E0 + [1,0] * epsilon; + + I0 = [ E0[0], H[1] ]; + I1 = [ E1[0], H[1] ]; hull(){ for (m=[0,1]) mirror([m,0]) - circleat(A, r1); + circleat(H, r0 - epsilon); } for (m=[0,1]) mirror([m,0]) { difference(){ polygon([ E1, - A, - B0, + I1, + H, + B1, G, - F1, - D1 + F, + D ]); - circleat(D1, r1); + circleat(D, r0 + epsilon); } } } @@ -236,6 +257,34 @@ module AroundEdges(fill_zstart, fill_th, fill_downwards=0){ [phone_width, -phone_height] + [-1,+1] * phone_cnr_rad); } +module SideButton(y,l){ + $button_l= l; + translate([0, -y, 0]) + children(); +} + +module Buttons(){ + CaseBase_rhsflip([1]) SideButton(20.6, 8.8) children(); // power +} + +module Struts(x_start, z_min, th){ + // if th is negative, starts at z_min and works towards -ve z + // and object should then be printed other way up + for (i= [1 : 1 : case_struts_count]) { + translate([0, + 0, + z_min]) + mirror([0,0, th<0 ? 1 : 0]) + translate([0, + -phone_height * i / (case_struts_count+1), + case_struts_solid_below]) + linear_extrude(height= abs(th) + -(case_struts_solid_below+case_struts_solid_above)) + rectfromto([ x_start, -0.5 * case_struts_width ], + [ phone_width - x_start, +0.5 * case_struts_width ]); + } +} + module CaseBase(){ AroundEdges(epp3[1], case_th_bottom, 1) EdgeProfile(); @@ -250,7 +299,7 @@ module Case(){ ////toplevel intersection(){ rotate([90, 0, 0]) linear_extrude(height = phone_height + phone_cnr_rad * 2) - KeeperProfile(); + KeeperProfile(1); // outline of the whole case, to stop it protruding translate([0,0, -25]) @@ -281,21 +330,44 @@ module Case(){ ////toplevel rectfromto(camera_pos_tl, camera_pos_br); // struts (invisible, because they're buried in the case) - for (i= [1 : 1 : case_struts_count]) { - translate([0, - -phone_height * i / (case_struts_count+1), - epp2i[1] - case_th_bottom + case_struts_solid_below]) - linear_extrude(height= case_th_bottom - -(case_struts_solid_below+case_struts_solid_above)) - rectfromto([ epp2i[0], -0.5 * case_struts_width ], - [ phone_width - epp2i[0], +0.5 * case_struts_width ]); + Struts(epp2i[0], epp2i[1] - case_th_bottom, case_th_bottom); + + Buttons(){ + mirror([1,0,0]) + rotate([90,0,90]) { + translate([0,0,-10]) + linear_extrude(height= 20) + ButtonPlan($button_l, 0,1); + translate([0,0, -bppR[0]]) + linear_extrude(height= 20) + ButtonPlan($button_l, 1,1); + } } } } module Lid(){ ////toplevel - AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0) - LidEdgeProfile(); + difference(){ + union(){ + AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0) + LidEdgeProfile(); + + // button covers + Buttons(){ + intersection(){ + rotate([90,0,90]) + translate([0,0,-10]) + linear_extrude(height= 20) + ButtonPlan($button_l, 1,0); + rotate([90,0,0]) + translate([0,0,-100]) + linear_extrude(height= 200) + ButtonCoverProfile(); + } + } + } + Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid); + } } module TestLength(){ ////toplevel @@ -306,37 +378,55 @@ module TestLength(){ ////toplevel } } +module TestSelectWidth(){ + translate([-30, -(phone_height - 25), -20]) + mirror([0, 1, 0]) + cube([200, 50, 40]); +} + module TestWidth(){ ////toplevel intersection(){ Case(); - translate([-30, -(phone_height - 25), -20]) - mirror([0, 1, 0]) - cube([200, 50, 40]); + TestSelectWidth(); } } module TestLidWidthPrint(){ ////toplevel - rotate([0,180.0]) - intersection(){ - Lid(); - translate([-30, -(phone_height - 25), -20]) - mirror([0, 1, 0]) - cube([200, 50, 40]); - } + rotate([0,180.0]) TestLidWidth(); +} + +module TestSelectCamera(){ + CaseBase_rhsflip(1) + translate([0,0,-25]) + linear_extrude(height = 50) + mirror([0, 1, 0]) + rectfromto([-20, -20], + camera_pos_br + [ 5, 5 ]); } 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 ]); + TestSelectCamera(); } } +module TestLidByCamera(){ ////toplevel + intersection(){ + Lid(); + TestSelectCamera(); + } +} + +module TestLidByCameraPrint(){ ////toplevel + rotate([180,0,0]) TestLidByCamera(); +} + +module DemoByCamera(){ ////toplevel + color("blue") TestLidByCamera(); + color("red") TestCamera(); +} + module OneKeeper(){ ////toplevel translate([0, -phone_cnr_rad, 0]) rotate([90, 0, 0]) @@ -354,9 +444,8 @@ module Keeper(){ ////toplevel OneKeeper(); } -module ButtonPlanForDemo(colour, z, deep, cut){ - color(colour) - translate([0,0,z]) +module ButtonPlanForDemo(z, deep, cut){ + translate([0,0,z]) ButtonPlan(8, deep, cut); } @@ -364,6 +453,7 @@ module DemoProfiles(){ ////toplevel LidEdgeProfile(); %EdgeProfile(); KeeperProfile(); + translate([0,0,-1]) color("black") KeeperProfile(1); translate([20,0]) { LidEdgeProfile(); @@ -379,9 +469,9 @@ module DemoProfiles(){ ////toplevel } translate([-20,0]) { - ButtonPlanForDemo("grey", -1, 0,1); - ButtonPlanForDemo("blue", -2, 1,0); - ButtonPlanForDemo("red", -3, 1,1); + color("black") ButtonPlanForDemo(-2, 0,1); + color("red" ) ButtonPlanForDemo(-4, 1,1); + color("blue") ButtonPlanForDemo(-6, 1,0); } }