541 lines
18 KiB
OpenSCAD
541 lines
18 KiB
OpenSCAD
//GNAL v3 Shared Library
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include <./path_extrude.scad>;
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include <./threads.scad>;
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include <./Triangles.scad>;
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/**
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* THREADS
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* TOP (large screw)
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* metric_thread (diameter=13.6, pitch=1.5 ,thread_size = 1.6, length = 21);
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* TOP VOID
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* metric_thread (diameter=13.6 + .5, pitch=1.5, thread_size = 1.6, length = 21);
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* + clone translated along Z by 0.2mm
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* BOTTOM (small screw)
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* metric_thread (diameter=10, pitch=1.5, thread_size = 1.6, length=LEN);
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*/
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FINE = 200;
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OD = 10 + .5;
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PITCH = 1.5;
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THREAD = 1.6;
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LEN = 21;
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INSERT_D = 26;
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function X (start_r, spacing, fn, r, i) = (start_r + (r * spacing) + (i * calcIncrement(spacing, fn))) * cos(i * calcAngle(fn));
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function Y (start_r, spacing, fn, r, i) = (start_r + (r * spacing) + (i * calcIncrement(spacing, fn))) * sin(i * calcAngle(fn));
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function circ (d) = PI * d;
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function calcFacetSize (end_d, fn) = circ( end_d ) / fn;
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//function calcSteps(rotations, fn) = fn * rotations;
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function calcAngle (fn) = 360 / fn;
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function calcFn(start_d, start_fn, end_d, spacing, r) = start_fn +
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( ((circ(calcR(start_d, spacing, r) * 2) - circ(start_d) )
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/ (circ(end_d) - circ(start_d))) * ($fn - start_fn));
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function calcR(start_d, spacing, r) = (start_d / 2) + (spacing * r);
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function calcIncrement(spacing, fn) = spacing / fn;
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/**
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* spiral_7 - Combination of spiral_3 and spiral_4 that doesn't sacrifice
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* performance. Hits an overflow when $fn is higher than 245 which creates
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* 8418 vectors at 60 rotations. This is an edge case, only appearing in OpenSCAD
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* 2019.05 (and maybe earlier), but should be explored.
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**/
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module spiral (rotations = 40, start_d = 48, spacing = 2.075, bottom = -7.1, fn) {
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//bottom = -7.1;
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w = 1.4;
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top_w = .8;
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top_offset = (w - top_w);
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h = 2.2;
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facetProfile = [
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[w, -bottom],
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[0, -bottom],
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[0, 0],
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[top_offset, -h],
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[w, -h],
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[w, 0]
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];
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end_d = start_d + (spacing * 2 * rotations);
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end_r = end_d / 2;
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start_r = start_d / 2;
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facetSize = calcFacetSize(end_d, fn);
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start_fn = round(circ(start_d) / facetSize);
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spiralPath = [ for (r = [0 : rotations - 1]) for (i = [0 : round(calcFn(start_d, start_fn, end_d, spacing, r )) - 1 ])
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[
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X(start_r, spacing, round(calcFn(start_d, start_fn, end_d, spacing, r )), r, i),
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Y(start_r, spacing, round(calcFn(start_d, start_fn, end_d, spacing, r )), r, i),
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0]
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];
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path_extrude(exShape=facetProfile, exPath=spiralPath);
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}
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/**
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* Core (center of the reel)
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**/
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module gnal_spiral_core () {
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$fn = 360;
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core_center_h = 4.2 + 3;;
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core_bottom_outer_d = 53;
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core_bottom_outer_void_d = 44;
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core_bottom_outer_h = 4.2;
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core_d = 29.5;
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core_h = 8.5;
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core_bottom_d = 26;
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core_bottom_h = 4.2;
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top_z_offset = (core_h / 2) - (core_center_h / 2);
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core_void_outer_d = 20.5;
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core_void_inner_d = 14.5;
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core_void_h = 11.5;
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arms_outer_d = 48;
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arms_inner_d = 48 - 7;
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void_d = 18;
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film_void = 0.6;
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difference () {
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union() {
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//center
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translate([0, 0, -core_center_h / 2]) {
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cylinder(r = (core_bottom_outer_d - 1) / 2, h = core_center_h, center = true);
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}
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//top
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translate([0, 0, top_z_offset]) {
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cylinder(r = core_d / 2, h = core_h + core_center_h, center = true);
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}
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}
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cylinder(r = void_d / 2, h = 30, center = true);
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translate([0, 0, -7.2]) spiral_bottom_insert_void();
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}
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//arms
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difference () {
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union () {
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translate([0, 0, top_z_offset]) difference() {
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//adjusted arm (shorter)
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intersection () {
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cylinder(r = arms_outer_d / 2, h = core_h + core_center_h, center = true);
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translate([1, 0, 0]) cylinder(r = arms_outer_d / 2, h = core_h + core_center_h, center = true);
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}
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intersection () {
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cylinder(r = arms_inner_d / 2, h = core_h + core_center_h + 1, center = true);
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translate([1, 0, 0]) cylinder(r = arms_inner_d / 2, h = core_h + core_center_h + 1, center = true);
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}
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translate([0, arms_outer_d / 2, 0]) cube([arms_outer_d, arms_outer_d, arms_outer_d], center = true);
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}
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//rounded arm end
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translate([(arms_outer_d + arms_inner_d) / 4, 0, top_z_offset]) cylinder(r = 3.5 / 2, h = core_h + core_center_h, center = true, $fn = 40);
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//adjusted arm
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translate([-((arms_outer_d + arms_inner_d) / 4) + 1, 0, top_z_offset]) cylinder(r = 3.5 / 2, h = core_h + core_center_h, center = true, $fn = 40);
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difference () {
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rotate([0, 0, -120]) translate([13.75, 0, top_z_offset]) cube([16, 20, core_h + core_center_h], center = true);
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//remove piece from adjusted arm
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translate([-19, -14, 0]) rotate([0, 0, 10]) cube([4, 4, 30], center = true);
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//remove piece from non-adjusted arm
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rotate([0, 0, 45]) translate([-19, -14, 0]) rotate([0, 0, -10]) cube([4, 4, 30], center = true);
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rotate([0, 0, -120 - 37]) translate([18, 0, top_z_offset]) {
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cylinder(r = 6.8 / 2, h = 30, center = true);
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translate([-4, -2, 0]) cube([4, 4, 30], center = true);
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}
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rotate([0, 0, -120 + 37]) translate([18, 0, top_z_offset]) {
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cylinder(r = 6.8 / 2, h = 30, center = true);
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translate([-4, 2, 0]) cube([4, 4, 30], center = true);
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}
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}
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}
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//film void (notches)
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rotate([0, 0, -120]) {
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translate([20, -5, 0]) {
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rotate([0, 0, 45]) {
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cube([20, film_void, 30], center = true);
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}
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}
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}
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rotate([0, 0, -120]) {
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translate([20, 5, 0]) {
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rotate([0, 0, -45]) {
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cube([20, film_void, 30], center = true);
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}
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}
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}
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//flatten piece
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rotate([0, 0, -120]) translate([25, 0, 0]) difference () {
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cylinder(r = 8 / 2, h = 30, center = true);
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translate([-6.9, 0, 0]) cube([8, 8, 30], center = true);
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}
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cylinder(r = core_void_outer_d / 2, h = core_void_h, center = true);
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rotate([0, 0, -120]) translate([20, 0, -1.5]) rotate([0, 0, 45]) cube([20, 20, 3.01], center = true);
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cylinder(r = void_d / 2, h = 30, center = true);
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translate([0, 0, -7.2]) spiral_bottom_insert_void();
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}
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}
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module spiral_bottom_insert_void () {
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intersection () {
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rotate([0, 45, 0]) cube([3, INSERT_D + 2, 3], center = true);
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cylinder(r = (INSERT_D + 1) / 2, h = 6, center = true);
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}
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intersection () {
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rotate([0, 45, 90]) cube([3, INSERT_D + 2, 3], center = true);
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cylinder(r = (INSERT_D + 1) / 2, h = 6, center = true);
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}
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}
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module gnal_spiral_bottom_insert_s8 () {
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$fn = 160;
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void_d = 18 - .3;
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H = 17;
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D2 = INSERT_D;
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translate([0, 0, 0]) difference () {
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union () {
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cylinder(r = void_d / 2, h = H, center = true);
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//skirt
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translate([0, 0, -(H - 1) / 2]) cylinder(r = D2 / 2, h = 1.5, center = true);
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//notches
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translate([0, 0, -((H - 2.5) / 2) - .1]) {
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intersection () {
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cylinder(r = D2 / 2, h = 6, center = true);
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difference () {
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rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
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translate([0, 0, -1.5]) cube([6, D2 + 3, 3], center = true);
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}
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}
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intersection () {
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cylinder(r = D2 / 2, h = 6, center = true);
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rotate([0, 0, 90]) difference () {
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rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
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translate([0, 0, -1.5]) cube([6, D2 + 3, 3], 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, -LEN / 2]) metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length=LEN);
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}
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}
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module gnal_spiral_bottom_insert_16 () {
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$fn = 160;
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void_d = 18 - .3;
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H = 17 + 8;
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D2 = INSERT_D;
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RIDGES = 8;
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RIDGE_D = 3;
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translate([0, 0, 0]) difference () {
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union () {
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cylinder(r = void_d / 2, h = H, center = true);
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//skirt
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translate([0, 0, -(H - 1) / 2]) cylinder(r = D2 / 2, h = 1.5, center = true);
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//notches
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translate([0, 0, -((H - 2.5) / 2) - .1]) {
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intersection () {
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cylinder(r = D2 / 2, h = 6, center = true);
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difference () {
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rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
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translate([0, 0, -1.5]) cube([6, D2 + 3, 3], center = true);
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}
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}
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intersection () {
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cylinder(r = D2 / 2, h = 6, center = true);
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rotate([0, 0, 90]) difference () {
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rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
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translate([0, 0, -1.5]) cube([6, D2 + 3, 3], 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, -(H / 2) - 2]) metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length=LEN + 8);
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translate([0, 0, 8.5]) {
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for (i = [0: RIDGES - 1]) {
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rotate([0, 0, i * (360 / RIDGES)]) translate([void_d / 2, 0, 0]) cylinder(r = RIDGE_D / 2, h = 8.1, 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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* Spacers
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**/
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module spacer_ridges () {
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ridges = 16;
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for (i = [0 : ridges]) {
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rotate([0, 0, i * (360 / ridges)]) translate([13.5, 0, 0]) cylinder(r = 1.25, h = 8, $fn = 60);
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}
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}
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module spacer_ridges_loose () {
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ridges = 16;
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intersection () {
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union () {
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for (i = [0 : ridges]) {
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rotate([0, 0, i * (360 / ridges)]) translate([13.7, 0, 0]) cylinder(r = 1.25, h = 8, $fn = 60);
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}
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}
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cylinder(r = 13.7, h = 12, center = true);
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}
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}
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module spacer_outer_ridges () {
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ridges = 24;
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H = 6.5;
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difference () {
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union () {
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for (i = [0 : ridges]) {
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rotate([0, 0, i * (360 / ridges)]) translate([14.6, 0, -4.75]) cylinder(r = 1.25, h = 8, $fn = 30);
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}
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}
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translate([0, 0, -4.1]) difference () {
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cylinder(r = 33 / 2, h = 4, center = true, $fn = 100);
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cylinder(r2 = 33 / 2, r1 = 27.75 / 2, h = 4.1, center = true, $fn = 100);
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}
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}
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}
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module gnal_spacer () {
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add = 3.25;
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core_d = 29.5;
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core_bottom_d = 26.2 + .2;
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void_d = 22.5;
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h = 8 + add;
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translate([0, 0, (add / 2) - 1]) difference () {
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union () {
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difference () {
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cylinder(r = core_d / 2, h = h, center = true, $fn = 200);
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translate([0, 0, 8]) cylinder(r = core_bottom_d / 2, h = h, center = true, $fn = 200);
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cylinder(r = void_d / 2, h = h + 1, center = true, $fn = 200);
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}
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translate([0, 0, 0]) spacer_ridges_loose();
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spacer_outer_ridges();
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}
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//trim top
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translate([0, 0, h - 0.1]) cylinder(r = (core_d + 1) / 2, h = h, center = true, $fn = 200);
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//trim bottom
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translate([0, 0, -h + 0.9]) cylinder(r = (core_d + 1) / 2, h = h, center = true, $fn = 200);
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//finger grips
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//translate([0, 24, 0]) rotate([-6, 0, 0]) cylinder(r = 10, h = 6, center = true, $fn = 100);
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//translate([0, -24, 0]) rotate([6, 0, 0]) cylinder(r = 10, h = 6, center = true, $fn = 100);
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}
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}
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module gnal_spacer_16 () {
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core_d = 29.5;
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core_bottom_d = 26.2 + .2;
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void_d = 18;
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h = 8;
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RIDGES = 8;
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RIDGE_D = 3;
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translate([0, 0, 0]) difference () {
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union () {
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difference () {
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cylinder(r = core_d / 2, h = h, center = true, $fn = 200);
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cylinder(r = void_d / 2, h = h + 1, center = true, $fn = 200);
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}
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translate([0, 0, -.75]) rotate([0, 180, 0]) spacer_outer_ridges();
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}
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}
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translate([0, 0, 0]) {
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for (i = [0: RIDGES - 1]) {
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rotate([0, 0, i * (360 / RIDGES)]) translate([void_d / 2, 0, 0]) cylinder(r = RIDGE_D / 2, h = 8, center = true);
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}
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}
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}
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/**
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* Spindles
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**/
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module gnal_spindle_bottom_base ( HEX = false) {
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D = 8.45 * 2;
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H = 20;
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//for grip
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BUMP = 2; //diameter
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BUMPS = 6;
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TOP_D = 19;
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TOP_H = 9.5;
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TOP_OFFSET = -24.5;
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union() {
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translate([0, 0, -15]) {
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cylinder(r = D / 2, h = H, center = true, $fn = FINE);
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}
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//hex version
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if (HEX) {
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translate([0, 0, TOP_OFFSET]) {
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cylinder(r = 11.1, h = TOP_H, center = true, $fn = 6);
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}
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} else {
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translate([0, 0, TOP_OFFSET]) {
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cylinder(r = TOP_D / 2, h = TOP_H, center = true, $fn = FINE);
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}
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}
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for (i = [0 : BUMPS]) {
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rotate([0, 0, (360 / BUMPS) * i]) {
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translate([0, 8.9, TOP_OFFSET]) {
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cylinder(r = BUMP, h = TOP_H, center = true, $fn = 60);
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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 outer_screw (LEN) {
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OD = 10;
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PITCH = 1.5;
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THREAD = 1.6;
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difference () {
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translate([0, 0, -7.1]) metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length=LEN);
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//bevel top of screw
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translate([0, 0, LEN - 8]) difference() {
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cylinder(r = 8, h = 3, center = true, $fn = FINE);
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cylinder(r1 = 6, r2 = 3, h = 3.01, center = true, $fn = FINE);
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}
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}
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}
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module gnal_spindle_bottom (ALT = false, HEX = false) {
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OD = 13.6 + .5;
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PITCH = 1.5;
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THREAD = 1.6;
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IN_LEN = 21;
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LEN = 17.1;
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ALT_LEN = 27.1;
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difference () {
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gnal_spindle_bottom_base(HEX);
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//inner screw negative
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translate([0, 0, -30]) union() {
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metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length = IN_LEN);
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translate([0, 0, 0.2]) {
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metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length = IN_LEN);
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}
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}
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}
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difference () {
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//outer screw
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if (ALT) {
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outer_screw(ALT_LEN);
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} else {
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outer_screw(LEN);
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}
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//hollow center
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cylinder(r = 3.8 / 2, h = 100, center = true, $fn = 60);
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}
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}
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module gnal_spindle_top () {
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D = 50;
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THICKNESS = 2.5;
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H = 19.5;
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ROUND = 8;
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HANDLE_D = 13.25;
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HANDLE_BASE = 16;
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HANDLE_TOP = 13;
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HANDLE_H = 54.5;
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NOTCHES = 17;
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NOTCH = 1.5;
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FINE = 200;
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difference () {
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//cup
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translate([0, 0, ROUND - 2]) minkowski () {
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cylinder(r = (D / 2) - ROUND, h = (H * 2) - ROUND, center = true, $fn = FINE);
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sphere(r = ROUND, $fn = FINE);
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}
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translate([0, 0, ROUND - 2 + THICKNESS]) minkowski () {
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|
cylinder(r = (D / 2) - THICKNESS - ROUND, h = (H * 2) - ROUND, center = true, $fn = 200);
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sphere(r = ROUND, $fn = FINE);
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|
}
|
|
//hollow out cup
|
|
translate([0, 0, H + ROUND - 4 - 3]) {
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|
cylinder(r = (D / 2) + 1, h = H * 2, center = true);
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}
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|
|
|
//inner cup bevel
|
|
translate([0, 0, (H / 2) - ROUND - 1]) {
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|
cylinder(r1 = (D / 2) - 2.5, r2 = (D / 2) - 2.5 + 1, h = 1, center = true, $fn = FINE);
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|
}
|
|
//outer cup bevel
|
|
translate([0, 0, (H / 2) - ROUND - 1]) {
|
|
difference () {
|
|
cylinder(r = (D / 2) + .25, h = 1, center = true, $fn = FINE);
|
|
cylinder(r2 = (D / 2) - .8, r1 = (D / 2) - .8 + 1, h = 1, center = true, $fn = FINE);
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|
}
|
|
}
|
|
//hole in cup
|
|
translate([21, 0, -10]) cylinder(r = 3 / 2, h = 40, center = true, $fn = 40);
|
|
}
|
|
|
|
//reference cylinder
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|
//translate([0, 0, -6.6]) color("red") cylinder(r = 50 / 2, h = 19.57, center = true);
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|
|
|
//handle
|
|
translate([0, 0, -15]) {
|
|
difference() {
|
|
cylinder(r1 = HANDLE_BASE / 2, r2 = HANDLE_TOP / 2, h = HANDLE_H, $fn = FINE);
|
|
//ring negative
|
|
translate([0, 0, 31 + 14.5]) {
|
|
difference () {
|
|
cylinder(r = HANDLE_D / 2 + 2, h = 20, center = true);
|
|
cylinder(r = HANDLE_D / 2 - .5, h = 20 + 1, center = true);
|
|
}
|
|
}
|
|
//handle notches
|
|
for(i = [0 : NOTCHES]) {
|
|
rotate([0, 0, i * (360 / NOTCHES)]) {
|
|
translate([0, HANDLE_D / 2 - .5, 31 + 14.5]) {
|
|
rotate([0.75, 0, 0]) rotate([0, 0, 45]) {
|
|
Right_Angled_Triangle(a = NOTCH, b = NOTCH, height = 20, centerXYZ=[true, true, true]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//bevel handle at top
|
|
translate([0, 0, 54.01]) {
|
|
difference () {
|
|
cylinder(r = 13 / 2, h = 1, center = true);
|
|
cylinder(r1 = 12.5 / 2, r2 = 11.5 / 2, h = 1.01, center = true);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
//attach handle with pyramid cylinder
|
|
translate ([0, 0, -13.7]) {
|
|
cylinder(r1 = 16 / 2 + 2, r2 = 16 / 2 - .1, h = 3, center = true, $fn = FINE);
|
|
}
|
|
//plate under cup
|
|
translate([0, 0, -17.75]) {
|
|
cylinder(r = 31.5 / 2, h = 1, center = true, $fn = FINE);
|
|
}
|
|
//screw
|
|
translate([0, 0, -37.5]) {
|
|
metric_thread (diameter=13.6, pitch=1.5 ,thread_size = 1.6, length = 21);
|
|
}
|
|
//cylinder plug
|
|
translate([0, 0, -37.5 + (21 / 2) - 1]) {
|
|
cylinder(r = 12 / 2, h = 21, center = true, $fn = FINE);
|
|
}
|
|
} |