197 lines
6.5 KiB
OpenSCAD
197 lines
6.5 KiB
OpenSCAD
//V2
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include <../libraries/gnal.scad>;
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$fn = 20;
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SPOKE_COUNT = 24;
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module gnal_spiral_50ft (spiral_count = 40, od = 215.75) {
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outer_d = 215;
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outer_d_inside = 209;
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outer_h = 7.5;
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spoke_len = 81;
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spoke_w = 3;
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spoke_h = 4.2 + 3;
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spoke_2_len = 43;
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translate([0, 0, -3.6]) difference () {
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cylinder(r = outer_d / 2, h = spoke_h, center = true, $fn = 500);
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cylinder(r = outer_d_inside / 2, h = outer_h + 1, center = true, $fn = 500);
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}
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difference () {
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gnal_spiral_core();
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//rounded spoke voids
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for (i = [0 : SPOKE_COUNT]) {
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rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
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translate([0, 26.75, 0]) {
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cylinder(r = 2, h = 20, center = true, $fn = 40);
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}
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}
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}
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}
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//main spokes
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for (i = [0 : SPOKE_COUNT]) {
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rotate([0, 0, i * (360 / SPOKE_COUNT)]) {
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translate([(spoke_len / 2) + (48 / 2), 0, -3.6]) {
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cube([spoke_len, spoke_w, spoke_h], center = true);
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}
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}
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}
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//secondary spokes
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for (i = [0 : SPOKE_COUNT]) {
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rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
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translate([(outer_d / 2) - (spoke_2_len / 2) - 2, 0, -3.6]) {
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cube([spoke_2_len, spoke_w, spoke_h], center = true);
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}
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}
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}
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//spoke cross bars
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for (i = [0 : SPOKE_COUNT]) {
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rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
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translate([63, 0, -3.6]) {
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rotate([0, 0, 20]) {
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cube([ spoke_w, 18, spoke_h], center = true);
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}
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}
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}
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}
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translate([0, 0, -.1]) {
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rotate([0, 0, -90]) {
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difference () {
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film_guide(spiral_count, od);
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for (i = [0 : SPOKE_COUNT]) {
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rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT) ]) {
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translate([(spoke_len / 4) + (48 / 2), 0, -3.6]) triangle_void();
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}
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}
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for (i = [0 : SPOKE_COUNT * 2]) {
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rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 2)) ]) {
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translate([(outer_d / 2) - (spoke_2_len / 2) + 1 , 0, -3.6]) triangle_void_2();
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}
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}
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}
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}
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}
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}
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module top () {
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H = 5;
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center_d = 53;
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spoke_w = 4.5;
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spokes = 12;
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outer_d = 215;
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inner_d = 150;
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void_d = 22.5;
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hole_d = 3.5;
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hole_spacing = 37;
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core_d = 29.5;
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core_bottom_d = 26.2;
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difference () {
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union () {
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cylinder(r = center_d / 2, h = H, center = true, $fn = 100);
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for (i = [0 : spokes]) {
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rotate([0, 0, i * (360 / spokes)]) translate([0, outer_d / 4, 0]) cube([spoke_w, (outer_d / 2) - 1, H], center = true);
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}
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}
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//void
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cylinder(r = void_d / 2, h = H + 1, center = true, $fn = 100);
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//speed holes
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for (i = [0 : 3]) {
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rotate([0, 0, (i * 90) + 45]) translate([0, hole_spacing / 2, 0]) cylinder(r = hole_d / 2, h = H + 1, center = true);
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}
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//rounding of center cylinder
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for (i = [0 : spokes]) {
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rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([-2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
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rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
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rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([0, 26.5, 0]) cube([5, 4, H + 1], center = true);
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}
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}
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difference () {
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cylinder(r = (center_d / 2) - 1.8, h = H, center = true, $fn = 200);
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cylinder(r = (hole_spacing / 2) + 2, h = H + 1, center = true, $fn = 200);
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}
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//outer ring
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difference () {
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cylinder(r = outer_d / 2, h = H, center = true, $fn = 200);
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cylinder(r = (outer_d / 2) - 5, h = H + 1, center = true, $fn = 200);
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}
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//inner ring
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difference () {
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cylinder(r = inner_d / 2, h = H, center = true, $fn = 200);
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cylinder(r = (inner_d / 2) - 5, h = H + 1, center = true, $fn = 200);
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}
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//rounded cross connectors
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for (i = [0 : spokes]) {
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rotate([0, 0, i * (360 / spokes)]) translate([0, (inner_d / 2) - (spoke_w / 2), 0]) difference() {
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cylinder(r = 6.5, h = H, center = true);
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translate([6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
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translate([-6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
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translate([-6.1, -7, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
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translate([6.1, -7, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
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}
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}
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difference () {
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union () {
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translate([0, 0, 3.75 + 1]) cylinder(r = core_d / 2, h = H, center = true, $fn = 60);
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translate([0, 0, 3.75 + 1 + 3.2]) cylinder(r = core_bottom_d / 2, h = H, center = true, $fn = 60);
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}
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cylinder(r = void_d / 2, h = H * 5 , center = true, $fn = 100);
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translate([0, 0, 4 + 1 + 2.25]) spacer_ridges();
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}
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//rounded outer ring connectors
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for (i = [0 : spokes]) {
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rotate([0, 0, i * (360 / spokes)]) translate([0, 205 / 2, 0]) difference () {
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cube([13, 9, H], center = true);
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translate([6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
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translate([-6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
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}
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}
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}
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module film_guide (rotations = 40, od = 215.75) {
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SPIRALROTATION=rotations * 360;
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SPIRALSTEPS=180;
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INITIALRADIUS= od / 2; //300 / 2;
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PITCH=2.07675;
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XMAXSHAPE=2;
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InwardSpiral (
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SPIRALROTATION/SPIRALSTEPS,
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SPIRALSTEPS,
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INITIALRADIUS,
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PITCH,
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XMAXSHAPE);
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}
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//difference() {
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//spiral();
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//translate([250, 0, 0]) cube([500, 500, 50], center = true);
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//rotate([0, 0, 150]) translate([250, 0, 0]) cube([500, 500, 50], center = true);
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//}
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//color("blue") spiral_bottom_insert_s8();
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//translate([0, 0, 4]) spiral_bottom_insert_16();
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//translate([0, 0, 12.5]) spacer_16();
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//real 88m24.685s
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//user 88m16.804s
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//sys 0m6.259s
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//spacer();
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//translate([0, 0, 16 + 8]) spiral();
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//top();
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//film_guide (rotations = 10);
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//1 Rotation = 0 hours, 0 minutes, 47 seconds
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//2 Rotation = 0 hours, 1 minutes, 3 seconds
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//3 Rotation = 0 hours, 1 minutes, 15 seconds
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//10 Rotation = 0 hours, 4 minutes, 47 seconds |