X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=nook-case.scad;h=ecbbbc22fd95bb31a86b9d391392bd3ef472142d;hp=baf5bb2cba9102b727e196e33fc031e5b0edc8ad;hb=3c1da07f2c510b741d2a83025220c7c1b70aab44;hpb=d960a6b9af10ed7b2fbe8bd8d2ef81933def3923 diff --git a/nook-case.scad b/nook-case.scad index baf5bb2..ecbbbc2 100644 --- a/nook-case.scad +++ b/nook-case.scad @@ -1,17 +1,27 @@ // -*- C -*- +// Infill density: 20% + +include include -nook_th = 12.41 + 0.50; -nook_w = 127.12 + 0.75; -nook_h = 123.44 + 21.88 + 21.05 + 0.75; +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 = 12.5; -usb_below = 2.5; +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; @@ -29,10 +39,11 @@ engage_l0 = 10; engage_l1 = 10; engage_l2 = 3; -tooth_inward = gap[0] * 1.0; -tooth_x = nook_w * 1/6; +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; @@ -76,6 +87,8 @@ 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); @@ -86,20 +99,44 @@ 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], [-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() { @@ -130,7 +167,7 @@ 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 ToothProfile(){ @@ -149,11 +186,19 @@ module ToothProfile(){ } module Demo(){ ////toplevel - translate([0,0,-2]) LeftSideMainProfile(); - translate([0,0,-2]) color("yellow") LeftTopMainProfile(); - color("red") difference(){ - LeftSideMainProfile(); - SideTapeCutout(); + 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(); @@ -172,9 +217,13 @@ module FaceCore(z0,z1, extra_left, extra_right){ 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) - translate(-[1,0,0] * nook_cnr_rad) - children(mx); + 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]) @@ -202,6 +251,22 @@ module FaceCore(z0,z1, extra_left, extra_right){ } } +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) { @@ -213,24 +278,50 @@ module Base(){ ////toplevel 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 - FaceCore(tppE[1],tppD[1], -gap[0], gap[0] + 0.3) { - LeftTopMainProfile(); - RightTopMainProfile(); - TopTapeCutout(); + 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([tooth_x, nook_h/2, 0]) - linextr_x_yz(-tooth_w/2, +tooth_w/2) - mirror([1,0]) + 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(){ @@ -239,6 +330,10 @@ module TestExtrude(){ } } +module BaseTestRest(){ ////toplevel + cube([30,15, spp8[1]-spp7[1]]); +} + module Demo3(){ ////toplevel color("purple") Top(); color("red") Base();