X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=fairphone-case.scad;h=04c4d61b93c93c6c11f5717a98d86a11bedca2a1;hp=eeeceb0e3f82848a5be3d37889a5dda7db7677bd;hb=85db45c1dd57ad34e781f8d108368fa1124a2e47;hpb=147c36bd683b1bed5ad08de69dc2a4ef86cef5ce diff --git a/fairphone-case.scad b/fairphone-case.scad index eeeceb0..04c4d61 100644 --- a/fairphone-case.scad +++ b/fairphone-case.scad @@ -26,7 +26,7 @@ phone_backside_slope_outer = 1.0; // larger means shallower camera_pos_tl = [ 6.450, 12.750 ]; // measured from tl corner camera_pos_br = [ 22.300, 37.600 ]; // tl/br as seen from back -jack_pos = [ 14.38, 7.96 ]; +jack_pos = [ 13.83, 8.485 ]; jack_dia = 10.64 + .5; // some jack I had lying around noisecancelmic_pos = [ 19.54, 7.37 ]; // from rhs @@ -117,7 +117,7 @@ prop_recess_slop = 0.200; // each side prop_end_dia = 0.5; prop_main_th = 3; prop_taper_len = 6; -prop_main_width = 3; +prop_main_width = 4; prop_side_gap = 0.75; // each side prop_lidrecess_behind = 0.75; prop_caserecess_behind = 0.75; @@ -189,6 +189,9 @@ bppO = [ bppN[0], bppP[1] ]; bppL = lpp10 + [5,0]; bppK = [ bppL[0], bppN[1] ]; bppJ = [ bppN[0], bppL[1] ]; +bppU = [ bppJ[0], lpp12[1] ]; +bppV = lpp11; +bppW = lpp10; // hinge plan hp_rn = hingescrew_nut_dia/2; @@ -263,8 +266,8 @@ prcp2 = [ epp4[0] + prop_buildout_less, prop_caserecess_buildout_r = -1; // prcp2[0] - epp2o[0]; -prcp1 = [ epp2o[0], - epp2i[1] - prc_r3 ]; +prcp1 = [ epp2o[0] + prc_r3 + prop_caserecess_behind, + epp2i[1] - prc_r3 - prop_recess_under]; // prop recess in lid @@ -277,10 +280,10 @@ prlp10 = lpp10 + [1,1] * prl_r10o // prop -prpp10 = [0,0]; -prpp11 = [0, prop_taper_len]; +$prpp10 = [0,0]; +$prpp11 = [0, prop_taper_len]; -prp_r10 = prl_r10; +$prp_r10 = prl_r10; // ---------- modules ---------- @@ -321,7 +324,9 @@ module LidEdgeProfile(){ module ButtonCoverProfile(){ intersection(){ - polygon([ bppM, bppP, bppO, bppJ, bppL, bppK ]); + polygon(concat([ bppM, bppP, bppO, bppJ ], + (enable_support ? [ bppU, bppV, bppW ] : []), + [ bppL, bppK ])); hull(){ EdgeProfile(); LidEdgeProfile(); @@ -584,12 +589,15 @@ module HingeLeverOuterProfile(){ } module HingeLeverInnerProfile(){ - for (c = [hppT, hppB]) { - hull() + for (s = [-1,+1]) { + c = s > 0 ? hppT : hppB; + translate(c) + mirror([0,0,s>0]) + hull() for (x=[-20,20]) - for (y=[0, c[1] - hppM[1]]) + for (y=[0, s * 10]) translate([x,y]) - circleat(c, hp_rn); + circle(hp_rn); } } @@ -622,83 +630,102 @@ module CaseBase(){ EdgeProfile(); } -module PropProfile(gamma, cut=0){ ////toplevel +function prop_x(gamma) = hp_k / (2 * sin(gamma/2)) - hppT[0]; + +module PropProfileAssignments(gamma){ // https://en.wikipedia.org/wiki/Solution_of_triangles#Two_sides_and_the_included_angle_given_(SAS) - k = hp_k; - p = phone_height - prlp10[0] - hppB[0]; - x = k / (2 * sin(gamma/2)) - hppT[0]; + x = prop_x(gamma); + p = phone_height + prlp10[0] - hppB[0]; b = p + x; - q = phone_height - hppT[0]; // prpp7[0] is 0 by definition + q = phone_height - hppT[0] - prcp1[0]; // $prpp7[0] is 0 by definition a = q + x; c = sqrt(a*a + b*b - 2*a*b*cos(gamma)); - alpha = acos( (b*b + c*c - a*a) / (2*b*c) ); + $prp_alpha = acos( (b*b + c*c - a*a) / (2*b*c) ); - theta = 90 - alpha; - beta = 180 - alpha - gamma; + $prp_theta = 90 - $prp_alpha; + beta = 180 - $prp_alpha - gamma; psi = 90 - beta; - echo("abc", a,b,c); + //echo("abc", a,b,c); v1 = [ [ cos(psi), -sin(psi) ], // x [ sin(psi), cos(psi) ] ]; // y - prpp7 = [0, c + (lpp13[1] - prpp10[1]) ]; + $prpp7 = [0, c + (lpp13[1] - $prpp10[1] - hp_k) ]; - prp_r1 = prc_r1; - prp_r11 = prop_main_th/2; + $prp_r1 = prc_r1; + $prp_r11 = prop_main_th/2; - prpp1 = prpp7 + [1,0] * + $prpp1 = $prpp7 + [1,0] * // this is approximate, but will do - (prop_main_th/2 + prop_prop_gap + prcp1[0] - epp4[0]); - prpp3 = prpp1 + - v1[0] * -prp_r1 + + (prop_main_th/2 + prop_prop_gap + prcp1[0] - cppA[0]); + $prpp3 = $prpp1 + + v1[0] * -$prp_r1 + v1[1] * ((prcp2[1] - prcp1[1]) - prop_prop_gap); - prpp12 = prpp3 + v1[0] * - (prop_end_dia + prop_caserecess_taper * (prpp1[1] - prpp3[1])); - prp_r8 = prop_main_th; - prpp4 = [ prop_main_th/2, prpp3[1] ]; - prp_r5 = prp_r8; - prpp5 = [ prpp12[0] - prp_r5, - prpp3[1] - prop_prong_h + prp_r5 ]; - prpp6 = prpp4 + [0,-1] * (prop_prong_h + - prop_prong_heel_slope * (prpp5[0] - prpp4[0])); - prpp8 = prpp4 + [0,-1] * prp_r8; - prpp9 = prpp8 + [-1,0] * prp_r8; - - //#circleat(prpp3,1); - //#circleat(prpp12,1); - - if (!cut) { - hull(){ - translate(prpp8) - intersection(){ - circle(prp_r8); - polygon([[-20,-0], [0,0], [20,20]]); - } - rectfromto(prpp6, prpp9); - translate(prpp5) intersection(){ - circle(prp_r5); - polygon([[-10,-10], [0,0], [10,0]]); + $prpp12 = $prpp3 + v1[0] * + (prop_end_dia + prop_caserecess_taper * ($prpp1[1] - $prpp3[1])); + $prp_r8 = prop_main_th; + $prpp4 = [ prop_main_th/2, $prpp3[1] ]; + $prp_r5 = $prp_r8; + $prpp5 = [ $prpp12[0] - $prp_r5, + $prpp3[1] - prop_prong_h + $prp_r5 ]; + $prpp6 = $prpp4 + [0,-1] * (prop_prong_h + + prop_prong_heel_slope * ($prpp5[0] - $prpp4[0])); + $prpp8 = $prpp4 + [0,-1] * $prp_r8; + $prpp9 = $prpp8 + [-1,0] * $prp_r8; + + children(); +} + +module PropProfile(gamma, cut=0, rot=0){ ////toplevel + PropProfileAssignments(gamma){ + + //#circleat($prpp3,1); + //#circleat($prpp12,1); + + if (!cut) { + hull(){ + translate($prpp8) + intersection(){ + circle($prp_r8); + polygon([[-20,-0], [20,20], [0,0]]); + } + rectfromto($prpp6, $prpp9); + translate($prpp5) intersection(){ + circle($prp_r5); + polygon([[-10,-10], [0,0], [10,0]]); + } + rectfromto($prpp12 + [0,-0.1], $prpp3); + } + hull(){ + circleat($prpp1, $prp_r1); + rectfromto($prpp12 + [0,-0.1], $prpp3); } - rectfromto(prpp12 + [0,-0.1], prpp3); - } - hull(){ - circleat(prpp1, prp_r1); - rectfromto(prpp12 + [0,-0.1], prpp3); } - } - // main shaft - rotate([0,0, cut ? -theta : 0]){ - hull(){ - extra = cut ? prop_recess_slop : 0; - rectfromto(prpp6, prpp9); - circleat(prpp11, prp_r11 + extra); - circleat(prpp10, prp_r10 + extra); + // main shaft + rotate([0,0, rot*-$prp_theta]){ + hull(){ + extra = cut ? prop_recess_slop : 0; + rectfromto($prpp6, $prpp9); + circleat($prpp11, $prp_r11 + extra); + circleat($prpp10, $prp_r10 + extra); + } } } } +module PropAggregateProfile(){ + for (angle = prop_angles) + PropProfile(angle, 0,0); +} + +module Prop(){ ////toplevel + hw = prop_main_width/2; + linextr(-hw, +hw) + PropAggregateProfile(); +} + module Case(){ ////toplevel difference(){ union(){ @@ -802,9 +829,9 @@ module Case(){ ////toplevel // prop recess Flip_rhs(1) translate([prop_x_pos,0,0]) + mirror([0,1,0]) rotate([90,0,90]) linextr(-prop_recess_hw, +prop_recess_hw) - mirror([1,0]) hull(){ for (d=[ [0,0], [0,-1], [+1,-1/prop_caserecess_taper] ]) circleat(prcp1 + 20*d, @@ -844,6 +871,15 @@ module Lid(){ ////toplevel // screw holes in the hinge arms HingeScrews(); + + // prop recess + translate([prop_x_pos, -prlp10[0], prlp10[1]]) + mirror([0,1,0]) + rotate([90,0,90]) + linextr(-prop_recess_hw, +prop_recess_hw) + hull() + for (pa = prop_angles) + PropProfile(pa, 1,1); } } @@ -972,19 +1008,6 @@ module LidPrint(){ ////toplevel Lid(); } -module TestSelectPropRecesses(posns){ - linextr(-100,100){ - translate([phone_width/2, -phone_height]){ - square([ 3, 500 ], center=true); - for (y=posns) - hull() - for (dy=[ -prp5[0], -prp2[0] ]) - translate([0,y+dy]) - square([prop_main_width+5, 5], center=true); - } - } -} - module TestSelectFrame(){ include = [1,-1] * (epp2i[0] + 4); @@ -998,7 +1021,6 @@ module TestSelectFrame(){ module TestSelectLidFrame(){ TestSelectFrame(); - TestSelectPropRecesses(prop_lid_posns); } module TestFrameCase(){ ////toplevel @@ -1012,6 +1034,15 @@ module TestFrameCase(){ ////toplevel } } +module TestTopApertures(){ ////toplevel + intersection(){ + Case(); + TestSelectFrame(); + translate([-100, -35, -100]) + cube([400, 100, 200]); + } +} + module TestFrameLidPrint(){ ////toplevel rotate([0,180,0]) intersection(){ Lid(); @@ -1041,6 +1072,48 @@ module HingeScrews(){ } } +module DemoPropAngleSelect(c){ + color(c) difference(){ + union(){ children(); } + translate([ prop_x_pos, -400, -200 ]) + cube([ 400,800,400 ]); + } +} + +module DemoPropAngle(ang){ + hL = [0, -(phone_height - hppT[0]), hppT[1] - hp_k*2]; + hC = [0, -(phone_height - hppB[0]), hppB[1]]; + + translate(hL) + rotate([ang/2,0,0]) + translate(-hL) + translate(hC) + rotate([ang/2,0,0]) + translate(-hC) { + DemoPropAngleSelect("red") Case(); + + color("orange") + translate([prop_x_pos, -prcp1[0], prcp1[1]]) + PropProfileAssignments(ang) { + echo($prpp1); + rotate([-$prp_theta, 0, 0]) + translate([0, $prpp1[0], -$prpp1[1]]) + rotate([90,0,-90]) + Prop(); + } + } + + translate([0,0, -hp_k*2]) + DemoPropAngleSelect("blue") + Lid(); +} + +module DemoPropAngles(){ ////toplevel + for (i=[0 : len(prop_angles)-1]) + translate(i * [0, -100, 100]) + DemoPropAngle(prop_angles[i]); +} + module DemoFrame(){ ////toplevel color("red") TestFrameCase(); color("blue") intersection(){ Lid(); TestSelectLidFrame(); } @@ -1109,13 +1182,16 @@ module DemoProfiles(){ ////toplevel translate([40,-30]) { difference(){ - %LidEdgeProfile(); - //translate(prlp10) - //PropProfile(10, 1); + LidEdgeProfile(); + translate(prlp10) + PropProfile(10, 1, 0); } translate(prlp10) PropProfile(15, 0); } + translate([60,-30]) { + PropAggregateProfile(); + } } //EdgeProfile();