X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=nook-case.scad;h=8d832afdac2cfa6f14faf3ee51c42c5f7aa38b7e;hb=01fc3baa67255b7ce6d43495fca74a387c763147;hp=e38e70227d9911bb590ea758207ef0651b3eef4b;hpb=97dd0944c8012c62e67d697c15fe748f15224056;p=reprap-play.git diff --git a/nook-case.scad b/nook-case.scad index e38e702..8d832af 100644 --- a/nook-case.scad +++ b/nook-case.scad @@ -1,18 +1,58 @@ // -*- C -*- +include include -nook_th = 8; // xxx +nook_th = 12.41 + 0.50 - 1.50 + 1.35 - .25; +nook_w = 127.12 + 0.75 - .95 - .50; +nook_h = 123.44 + 21.88 + 21.05 + 0.75 - 1.90 - 0.50 - 0.50; + +edge_ledge_w = 9.60; +edge_ledge_h = 2.44 - .25; +edge_ledge_inc_ang = 10; // degrees + +usb_w = 14.5; +usb_below = 1.5; + +open_recess_w = 12.5; +open_recess_h = 2.5; + +open_recess_2_len = 15; +open_recess_2_d_tooth = 30; + nook_cnr_rad = 10; case_th = 2.5; ledge_w = 4; -tape_th = 1.5; +tape_th = 1.75; tape_inside = 2.0; +gap = 0.5 * [1,1]; + +tape_w = 15; + +test_pillar = 4; + +engage_l0 = 10; +engage_l1 = 10; +engage_l2 = 3; + +tooth_inward = gap[0] * 1.0 + 0.25 + 0.25; +tooth_w = 15; + +diag_near_hinge_slope = 0.5; + +$test = false; + +$fa = $test ? 10 : 3; +$fs = $test ? 0.1 : 1; + // calculated +tooth_height = nook_th; ledge_h = case_th; +lid_th = case_th; +tooth_th = case_th; spp0 = [0,0]; spp1 = spp0 + case_th * [-1,0]; @@ -21,16 +61,99 @@ spp8 = spp9 + nook_th * [0,-1]; spp7 = spp8 + case_th * [-1,-1]; spp11y = spp1[1] - tape_th; -spp4y = 0.5 * (spp0[1] + spp8[1]); +spp4y = 0.5 * (spp0[1] + spp7[1]); spp3y = spp4y + tape_inside/2; spp5y = spp4y - tape_inside/2; spp2y = spp3y + tape_th; spp6y = spp5y - tape_th; spp20 = spp8 + nook_cnr_rad * [1,0]; spp20x = spp20[0]; -module SideMainProfile() { +tppA = spp0 + gap; +tppB = spp1 + [0, gap[1]]; +tppC = tppB + lid_th * [0,1]; +tppD = [ spp20x, tppC[1] ]; +tppE = [ spp20x, tppB[1] ]; +tppF = tppA + ledge_w * [1,0]; +tppG = tppF + ledge_h * [0,-1]; +tppH = [ tppA[0], tppG[1] ]; + +tppJx = tppA[0] + tape_th; + +tppK = [ tppC[0], tppG[1] ]; +spp31 = tppK - [0, gap[1]]; +spp30 = [ spp8[0], spp31[1] ]; + +nom_cnr = 0.5 * [nook_w, nook_h, 0] - nook_cnr_rad * [1,1,0]; + +tooth_y = nom_cnr[1] - tooth_w/2; + +etxa = nom_cnr[0] - engage_l2; +etxb = etxa - engage_l1; +etxc = -(nom_cnr[0] - engage_l2); + +tapa = nom_cnr[1] - engage_l2; +tapb = tapa - tape_w; + +opra = nom_cnr[1] - engage_l2; +oprb = opra - open_recess_w; + +opqa = tooth_y - open_recess_2_d_tooth + open_recess_2_len/2; +opqb = opqa - open_recess_2_len; + +tppS = tppB + [-gap[0], 0]; +tppP = [ tppS[0] - tooth_th, tppC[1] ]; +tppQ = tppP + tooth_height * [0,-1] + tooth_inward * [1,0]; +tppR = [ tppS[0] + tooth_inward, tppQ[1] ]; +tppM = (tppQ + tppR) * 0.5 + tooth_th * 0.5 * [0,1]; + +edge_ledge_rad = edge_ledge_h; + +module RightSideMainProfile() { rectfromto(spp7, spp0); rectfromto(spp7, spp20); + EdgeLedgeProfile(); +} + +module LeftSideMainProfile() { + rectfromto(spp7, spp30); + rectfromto(spp7, spp20); + EdgeLedgeProfile(); +} + +module EdgeLedgeProfile() { + intersection(){ + hull(){ + for (t=[[0,0], [$test ? -1 : -20,0], [0,-10]]) { + translate(spp8 + + [edge_ledge_w, edge_ledge_h] + + edge_ledge_rad * [ -sin(edge_ledge_inc_ang), + -cos(edge_ledge_inc_ang) ] + + t) + circle(edge_ledge_rad); + } + } + translate(spp7) + square(30); + } +} + +module TopTapeCutout() { + polygon([ tppA, + tppA + [-40, 0], + tppG + [-40,-1], + [ tppJx, tppH[1]-1 ], + [ tppJx, tppC[1]+1 ], + [ tppA[0], tppC[1]+1 ]]); +} + +module RightTopMainProfile() { + l = [ tppA, tppB, tppC, tppD, tppE, tppF, tppG, tppH ]; + polygon(l); +} + +module LeftTopMainProfile() { + l = [ tppC, tppD, tppE, tppF, tppG, tppK ]; + polygon(l); } module SideTapeCutout1(y0,y1) { @@ -42,16 +165,185 @@ module SideTapeCutout() { SideTapeCutout1(spp6y, spp5y); SideTapeCutout1(spp3y, spp2y); SideTapeCutout1(spp3y, spp2y); - SideTapeCutout1(spp11y, spp1[1] + 1); + SideTapeCutout1(spp11y, spp1[1] + 1); // obsolete I think } -module Demo(){ - translate([0,0,-2]) color("red") SideMainProfile(); - difference(){ - SideMainProfile(); - SideTapeCutout(); +module ToothProfile(){ + polygon([tppA, + tppB, + tppS + [-0.1,0], + tppP, + tppC]); + hull(){ + polygon([tppP, + tppM, + tppS]); + translate(tppM) + circle(r= tooth_th/2); + } +} + +module Demo(){ ////toplevel + translate([-1,0,0]) { + translate([0,0,-2]) LeftSideMainProfile(); + translate([0,0,-2]) color("yellow") LeftTopMainProfile(); + color("red") difference(){ + LeftSideMainProfile(); + SideTapeCutout(); + } + translate([0,0,-4]) color("brown") EdgeLedgeProfile(); + translate(concat(spp8 + [edge_ledge_w, edge_ledge_h], [2])) + rotate(-edge_ledge_inc_ang) { + color("blue") square(3); + color("lightblue") mirror([1,0]) square(3); + } + } + translate([0,0,0]) color("purple") difference(){ + LeftTopMainProfile(); + TopTapeCutout(); + } + translate([nook_cnr_rad*2 + 5, 0,0]) mirror([1,0,0]) { + color("red") RightSideMainProfile(); + color("purple") RightTopMainProfile(); + color("grey") translate([0,0,-2]) ToothProfile(); } //%SideTapeCutout(); } -Demo(); +module FaceCore(z0,z1, extra_left, extra_right){ + difference(){ + for (mx=[0,1]) mirror([mx,0,0]) { + for (my=[0,1]) mirror([0,my,0]) { + translate(-nom_cnr) { + rotate_extrude(angle=90, convexity=10) { + intersection(){ + translate(-[1,0,0] * nook_cnr_rad) + children(mx); + rectfromto([-100,-100], [0,100]); + } + } + } + } + translate([nook_w/2, 0,0]) + linextr_y_xz(-nom_cnr[1]-0.1, nom_cnr[1]+0.1) + children(1-mx); + } + for (my=[0,1]) mirror([0,my,0]) { + translate([-nook_w/2, 0,0]) + mirror([1,0,0]) + linextr_y_xz(tapb, tapa) + children(2); + } + } + for (my=[0,1]) mirror([0,my,0]) { + translate([0, -nook_h/2, 0]) { + linextr_x_yz(-nom_cnr[0]-0.1, etxc + extra_left) children(0); + linextr_x_yz(etxc - extra_right, etxb + extra_right) children(1); + linextr_x_yz(etxb - extra_left, etxa + extra_left) children(0); + linextr_x_yz(etxa - extra_right, nom_cnr[0]+0.1) children(1); + } + } + if (!$test) { + linextr(z0,z1) + rectfromto(-nom_cnr, nom_cnr); + } +} + +module DiagonaliseNearHinge(wider){ + sz = spp0[1] - spp30[1] + gap[1]; + + for (my=[0,1]) mirror([0,my,0]) { + translate([-etxa, -nook_h/2, 0]) + mirror([1,0,0]) + linextr_y_xz(spp31[0] - wider, spp30[0] + gap[0] + 0.1) + translate([ 0, spp30[1] ]) + polygon([[ -1, 0 ], + [ 0, 0 ], + [ sz/diag_near_hinge_slope, sz ], + [ sz/diag_near_hinge_slope, sz + 0.1 ], + [ -1, sz + 0.1 ]]); + } +} + +module Base(){ ////toplevel + difference(){ + FaceCore(spp7[1],spp8[1], 0.3, 0) { + LeftSideMainProfile(); + RightSideMainProfile(); + SideTapeCutout(); + } + translate([0, -nook_h/2, 0]) + mirror([0,1,0]) + linextr_x_yz(-usb_w/2, usb_w/2) + rectfromto(spp8 + [-40, usb_below], [40, 40]); + translate([ gap[0], 0,0 ]) + DiagonaliseNearHinge(10); +/* + translate([nook_w/2, 0, 0]) + linextr_y_xz(oprb, opra) + translate(spp0) + rectfromto([-40, -open_recess_h], [40, 1]); +*/ + } + if ($test) { + linextr(spp7[1], spp8[1]) { + hull(){ + for (r=[0,180]) + rotate([0,0,r]) + translate(nom_cnr + -1 * nook_cnr_rad*[1,1]) + square(12); + } + } + } +} + +module Top(){ ////toplevel + difference(){ + FaceCore(tppE[1],tppD[1], -gap[0], gap[0] + 0.3) { + LeftTopMainProfile(); + RightTopMainProfile(); + TopTapeCutout(); + } + translate([nook_w/2, 0,0]) + linextr_y_xz(opqb, opqa) + rectfromto(spp8, tppC + [-1,1]); + } + translate([0,0, gap[1]]) + DiagonaliseNearHinge(0); + translate([nook_w/2, tooth_y, 0]) + linextr_y_xz(-tooth_w/2, +tooth_w/2) + ToothProfile(); +} +module TopPrint(){ ////toplevel + rotate([0,0,90]) rotate([180,0,0]) Top(); +} +module BasePrint(){ ////toplevel + rotate([0,0,90]) Base(); +} + +module TestExtrude(){ + difference(){ + linextr_y_xz(-test_pillar, tape_w+test_pillar) children(0); + linextr_y_xz( 0, tape_w ) children(1); + } +} + +module BaseTestRest(){ ////toplevel + cube([30,15, spp8[1]-spp7[1]]); +} + +module Demo3(){ ////toplevel + color("purple") Top(); + color("red") Base(); +} + +module TestSide(){ ////toplevel + TestExtrude() { LeftSideMainProfile(); SideTapeCutout(); } +} + +module TestTop(){ ////toplevel + TestExtrude() { LeftTopMainProfile(); TopTapeCutout(); } +} +module TestTopPrint(){ ////toplevel + rotate([180,0,0]) TestTop(); +}