164 lines
4.4 KiB
OpenSCAD
164 lines
4.4 KiB
OpenSCAD
diameter_top = 65;
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diameter_throat = 36;
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diameter_bottom = 10;
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height_top = 95;
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height_bottom = 80;
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wall_thickness = 1.2;
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vent_pct = 100;
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tab = false;
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$fn = 50;
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fuzz = 0.1;
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radius_top = diameter_top/2;
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radius_throat = diameter_throat/2;
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radius_bottom = diameter_bottom/2;
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top_vent_pct = vent_pct/2;
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throat_vent_pct = vent_pct;
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bottom_vent_pct = vent_pct;
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tabsize=wall_thickness * 6;
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tablength=0.75; // reasonable sizes range from 0.5 - 2.0
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tabpos=90;
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module hexgrid_center(hexsize, hexh, hexw, hexd, gridt) {
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translate([-hexw/2,-hexd/2,-hexh/2]) hexgrid(hexsize, hexh, hexw, hexd, gridt);
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}
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module hexgrid(hexsize, hexh, hexw, hexd, gridt) {
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intersection() {
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hexgrid_only(hexsize, hexh, hexw, hexd, gridt);
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cube([hexw, hexd, hexh]);
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}
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}
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module hexgrid_only(hexsize, hexh, hexw, hexd, gridt) {
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rotate([0,-90,-90])
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for (Y = [0:(hexh/hexsize)+1]) {
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for (X = [0:(hexw/hexsize)+2]) {
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hexspaceY = (hexsize+gridt)*sin(60.1);
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hexspaceX = (hexsize+gridt)*sin(48.6);
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if (X % 2 == 0) {
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translate([Y*hexspaceY,X*hexspaceX,0]) rotate([0,0,90])cylinder(h=hexd, d=hexsize, $fn=6);
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} else {
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translate([(Y+0.5)*hexspaceY,X*hexspaceX,0]) rotate([0,0,90]) cylinder(h=hexd, d=hexsize, $fn=6);
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}
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}
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}
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}
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//color([0.5,0.5,1.0]) hexgrid_center(30, 200, 300, 400, 5);
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module ventblock_top(throat_vent, throat, angle, throat_h, hyp_b)
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{
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// vent for top
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translate([throat_vent, 0, 0])
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rotate([0,0,180])
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translate([0, -throat, throat_h-fuzz+1.2])
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rotate([0,180+angle,0])
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cube([throat*2, throat*2, hyp_b*1.2]);
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}
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module ventblock_bottom(throat_vent, throat, angle, throat_h, hyp_b)
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{
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// vent for bottom
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translate([throat_vent, -throat, throat_h-fuzz])
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rotate([0,-angle,0])
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cube([throat*2, throat*2, hyp_b*1.2]);
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}
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module solidshape(w, h) {
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t = radius_top + w;
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m = radius_throat + w;
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b = radius_bottom + w;
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ht = height_top - h + w;
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hb = height_bottom - h - h - w;
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ft=m-((2*fuzz*(t-m))/ht);
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vt=(t - w) * (top_vent_pct/100);
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vm=(m - w) * (throat_vent_pct/100);
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vb=(b - w) * (bottom_vent_pct/100);
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mw = (t-vt-m+vm+fuzz);
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//mw = t-vt-vm;
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ab = atan((m-vm-b+vb) / hb);
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at = atan((mw) / ht);
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tcl = sqrt((mw^2)+((ht)^2))-fuzz;
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render() {
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difference() {
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union() {
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translate([0,0,h+fuzz])
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cylinder(ht+wall_thickness, t, ft);
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//translate([0,0,ht+h+h])
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//cylinder(hb, m, b);
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}
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// vent for bottom
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ventblock_bottom(m-vm, m, ab, ht+h, hb);
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ventblock_top(m-vm, t, at, ht+h, tcl);
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//translate([0,-m,0])
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//translate([0,0,ht])
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//rotate([0,180+at,180])
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//translate([m-vm, -m, 0])
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//rotate([0,180+at,0])
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//#cube([m*2, m*2, hb*2]);
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// vent for top
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//translate([t+t-m-vt-vt+vm, -t, -ht])
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//rotate([0,-at,0])
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//#cube([t*2, t*2, tcl*2]);
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}
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//color("red") x_measurement(0, [m-vm, 0, ht+fuzz-0.2]);
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}
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}
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module tabshape() {
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translate([-tabsize/2,0,fuzz])
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difference() {
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intersection() {
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cube([tabsize,tabsize*tablength*2,wall_thickness]);
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union() {
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cube([tabsize,tabsize*tablength,wall_thickness]);
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translate([tabsize/2, tabsize*tablength, 0])
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linear_extrude(wall_thickness)
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circle(d = tabsize);
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};
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}
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translate([tabsize/2, tabsize*tablength*0.9, 0])
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linear_extrude(wall_thickness)
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circle(d = tabsize/2);
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}
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}
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render() {
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difference() {
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union() {
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difference() {
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solidshape(wall_thickness, 0);
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solidshape(0,-wall_thickness);
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}
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if (tab)
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{
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rotate([0,0,tabpos])
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translate([0, radius_top, 0])
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tabshape();
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}
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}
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xs = 23;
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translate([-xs+10,xs,height_top/2])
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rotate([0,90,45])
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hexgrid_center(5.7, 20, 68, 20, 1.1);
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translate([-xs+10,-xs,height_top/2])
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rotate([0,90,-45])
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hexgrid_center(5.7, 20, 68, 20, 1.1);
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translate([-xs-5,0,height_top/2])
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rotate([0,90,90])
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hexgrid_center(5.7, 20, 68, 20, 1.1);
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}
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}
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