251 lines
8.5 KiB
OpenSCAD
251 lines
8.5 KiB
OpenSCAD
//V3
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include <../libraries/gnal_v3.scad>;
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SPOKE_COUNT = 24;
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FN = 200;
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$fn = FN;
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module gnal_50ft_spiral (spiral_count = 40, od = 215, quarter = false, reinforced = true) {
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outer_d = od;
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outer_d_inside = outer_d - 6;
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outer_h = 7.5;
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spoke_len = ((outer_d - 48) / 2) - 2.5; //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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if (quarter && i % 3 == 0 && i % 6 != 0) { //phew!
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cube([spoke_len, spoke_w * 2, spoke_h], center = true);
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} else {
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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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}
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//secondary spokes
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/*
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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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*/
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//spoke cross bars
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if (outer_d > 130) {
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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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}
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translate([0, 0, -.1]) {
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rotate([0, 0, -90]) {
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film_guide(spiral_count, reinforced = reinforced);
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}
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}
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}
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module gnal_50ft_spiral_quarter (quarter = "a") {
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LEN = 220;
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module notch (NOTCH = 5) {
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cube([NOTCH, NOTCH, 5], center = true);
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translate([0, 0, (5 / 2) + (1 / 2)]) rotate([0, 0, 45]) cylinder(r1 = NOTCH / 1.4, r2 = 0.1, h = 1, center = true, $fn = 4);
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}
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module quarter () {
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NOTCH = 3;
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NOTCH_H = -5;
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NOTCHES = 7;
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OFFSET = 60;
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difference () {
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cube([LEN, LEN, LEN], center = true);
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for (i = [0 : NOTCHES - 1]) {
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translate([OFFSET - (i * (LEN / NOTCHES)), -(LEN / 2), NOTCH_H]) rotate([0, 0, 45]) notch(NOTCH);
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}
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}
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for (i = [0 : NOTCHES - 2]) {
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translate([-(LEN / 2), OFFSET - (i * (LEN / NOTCHES)), NOTCH_H]) rotate([0, 0, 45]) notch(NOTCH);
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}
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}
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intersection () {
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rotate([0, 0, 45]) gnal_50ft_spiral(quarter = true);
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if (quarter == "a") {
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rotate([0, 0, 0]) translate([LEN / 2, LEN / 2, 0]) quarter();
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} else if (quarter == "b") {
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rotate([0, 0, 90]) translate([LEN / 2, LEN / 2, 0]) quarter();
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} else if (quarter == "c") {
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rotate([0, 0, 180]) translate([LEN / 2, LEN / 2, 0]) quarter();
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} else if (quarter == "d") {
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rotate([0, 0, 270]) translate([LEN / 2, LEN / 2, 0]) quarter();
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}
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}
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}
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module gnal_50ft_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 - 1]) {
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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 - 1]) {
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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 - 1]) {
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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 - 1]) {
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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, id = 45.55 - .5, spacing = 2.075, bottom = -2, reinforced = true) {
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spiral(rotations, id, spacing, bottom, $fn);
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//reinforce outer spiral
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if (reinforced) {
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difference () {
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spiral_reinforcement(208.9, spacing, -0.1, $fn);
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translate([107.35, 6, 0]) cube([5, 15, 10], center = true);
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}
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}
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}
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PART="30ft_spiral";
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if (PART == "spiral") {
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gnal_50ft_spiral();
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} else if (PART == "quarter_a") {
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gnal_50ft_spiral_quarter("a");
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} else if (PART == "quarter_b") {
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gnal_50ft_spiral_quarter("b");
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} else if (PART == "quarter_c") {
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gnal_50ft_spiral_quarter("c");
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} else if (PART == "quarter_d") {
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gnal_50ft_spiral_quarter("d");
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} else if (PART == "top") {
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gnal_50ft_top();
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} else if (PART == "spacer") {
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gnal_spacer();
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} else if (PART == "spacer_16") {
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gnal_spacer_16();
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} else if (PART == "insert_s8") {
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gnal_spiral_bottom_insert_s8();
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} else if (PART == "insert_16") {
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gnal_spiral_bottom_insert_16();
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} else if (PART == "insert_single") {
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gnal_spiral_bottom_insert_single();
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} else if (PART == "spindle_top") {
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gnal_spindle_top();
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} else if (PART == "spindle_bottom") {
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gnal_spindle_bottom();
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} else if (PART == "spindle_single") {
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gnal_spindle_single();
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} else if (PART == "spindle_stacking") {
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rotate([0, 180, 0]) gnal_stacking_spindle();
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} else if (PART == "30ft_spiral") {
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gnal_50ft_spiral(spiral_count = 19, od = 127, reinforced = false);
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} else if (PART == "spiral_test") {
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difference () {
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gnal_50ft_spiral();
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translate([125, 0, 0]) cube([250, 250, 100], center = true);
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rotate([0, 0, 30]) translate([-125, 0, 0]) cube([250, 250, 100], center = true);
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}
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}
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if (DEBUG) {
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echo("WARNING: DEBUG is enabled");
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}
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/*
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echo($vpt);
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echo($vpr);
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echo($vpd);
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*/ |