378 lines
16 KiB
OpenSCAD
378 lines
16 KiB
OpenSCAD
/*
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This file is part of SBC Case Builder https://github.com/hominoids/SBC_Case_Builder
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Copyright 2022,2023,2024 Edward A. Kisiel hominoid@cablemi.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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Code released under GPLv3: http://www.gnu.org/licenses/gpl.html
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fans(style, mask)
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fan_cover(size, thick)
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fan_mask(size, thick, style)
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*/
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/*
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NAME: fans
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DESCRIPTION: creates different fan styles and sizes
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TODO: add efficient vanes
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USAGE: fans(style, mask)
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style = "box",
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mask[0] = true enables component mask
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mask[1] = mask length
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mask[2] = mask setback
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mask[3] = mstyle "default", "fan_open", "fan_1", "fan_2", "fan_hex"
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*/
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module fans(style, mask) {
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// size, thick, hole-spacing, hole-size, hub-size
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fan_data = [
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["box140x25", 140, 25, 124.5, 4.3, 40, "#353535"],
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["box120x25", 120, 25, 105, 4.3, 40, "#353535"],
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["box92x25", 92, 25, 82.5, 4.3, 40, "#353535"],
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["box92x10", 92, 10, 82.5, 4.3, 40, "#353535"],
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["box80x25", 80, 25, 72.5, 4.3, 35, "#353535"],
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["box80x10", 80, 10, 72.5, 4.3, 35, "#353535"],
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["box60x25", 60, 25, 50, 4.3, 30, "#353535"],
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["box60x10", 60, 10, 50, 4.3, 30, "#353535"],
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["box50x10", 60, 10, 40, 4.3, 20, "#353535"],
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["box40x10", 40, 10, 32, 4.3, 18, "#353535"],
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["box30x10", 30, 10, 24, 3.2, 12, "#353535"]
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];
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f = search([style],fan_data);
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diameter = fan_data[f[0]][1];
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thickness = fan_data[f[0]][2];
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hole_space = fan_data[f[0]][3];
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hole_size = fan_data[f[0]][4];
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hole_offset = (diameter-hole_space)/2;
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hub_size = fan_data[f[0]][5];
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fan_color = fan_data[f[0]][6];
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enablemask = mask[0];
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mlength = mask[1];
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msetback = mask[2];
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mstyle = mask[3];
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adj = .01;
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$fn = 90;
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if(enablemask == true) {
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if(mstyle == "fan_open") {
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translate([0, 0, thickness-msetback+1]) fan_mask(diameter, mlength, "fan_open");
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}
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if(mstyle == "default" || mstyle == "fan_1") {
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translate([0, 0, thickness-msetback+1]) fan_mask(diameter, mlength, "fan_1");
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}
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if(mstyle == "fan_2") {
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translate([0, 0, thickness-msetback+1]) fan_mask(diameter, mlength, "fan_2");
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}
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if(mstyle == "fan_hex") {
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translate([0, 0, thickness-msetback+1]) fan_mask(diameter, mlength, "fan_hex");
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}
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}
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if(enablemask == false) {
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difference() {
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union() {
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color(fan_color) slab([diameter, diameter, 3], 4);
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color(fan_color) translate([0, 0, thickness-3]) slab([diameter, diameter, 3], 4);
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color(fan_color) translate([diameter/2, diameter/2, 0]) cylinder(d=diameter+2, h=thickness);
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}
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// holes
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color(fan_color) translate([diameter/2, diameter/2, -1]) cylinder(d=diameter-2, h=thickness+2);
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color(fan_color) translate([hole_offset,hole_offset,-1]) cylinder(d=hole_size, h=thickness+2);
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color(fan_color) translate([hole_offset,diameter-hole_offset,-1]) cylinder(d=hole_size, h=thickness+2);
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color(fan_color) translate([diameter-hole_offset,hole_offset,-1]) cylinder(d=hole_size, h=thickness+2);
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color(fan_color) translate([diameter-hole_offset,diameter-hole_offset,-1]) cylinder(d=hole_size, h=thickness+2);
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// trim sides
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color(fan_color) translate([-4,-4, -1]) cube([4, diameter+8, thickness+2]);
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color(fan_color) translate([diameter,-4, -1]) cube([4, diameter+8, thickness+2]);
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color(fan_color) translate([-4,-4, -1]) cube([diameter+8, 4, thickness+2]);
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color(fan_color) translate([-4,diameter, -1]) cube([diameter+8, 4, thickness+2]);
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}
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color(fan_color) translate([diameter/2, diameter/2, thickness/2]) rotate([0,0,30])
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cylinder_fillet_inside(h=thickness, r=hub_size/2, top=1, bottom=1, $fn=90, fillet_fn=90, center=true);
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}
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}
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/*
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NAME: fan_cover
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DESCRIPTION: creates fan covers for fan openings
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TODO: none
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USAGE: fan_cover(size, thick, style)
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size = size of fan
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thick = thickness of cover
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style = "fan_open", "fan_1", "fan_2", "fan_hex"
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*/
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module fan_cover(size, thick, style) {
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difference() {
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color("grey", 1) slab([size, size, thick], 3);
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color("grey", 1) fan_mask(size, thick, style);
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}
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}
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/*
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DESCRIPTION: creates fan masks for openings
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TODO:
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USAGE: fan_mask(size, thick, style)
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size = size of fan
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thick = thickness of cover
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style = "fan_open", "fan_1", "fan_2", "fan_hex"
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*/
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module fan_mask(size, thick, style) {
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hole_pos = size == 30 ? 3 :
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size == 40 ? 4 :
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size == 50 || size == 60 || size == 70 ? 5 :
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size >= 80 ? 3.75 : 3.75;
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$fn = 90;
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adj = .01;
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if(style == "fan_open") {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-1);
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// mount holes
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translate([size-hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([size-hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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}
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if(style == "fan_1" && size == 30) {
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union() {
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difference() {
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union () {
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-2);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-8);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-11);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-17);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-20);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-25);
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}
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// mount holes
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translate([size-hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([size-hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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}
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translate([5, 4, -2]) rotate([0, 0, 45]) cube([size, 1.5, thick+4]);
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translate([4, size-5, -2]) rotate([0, 0, -45]) cube([size, 1.5, thick+4]);
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}
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}
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}
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if(style == "fan_1" && size == 40) {
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union() {
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difference() {
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union () {
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-2);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-8);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-11);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-17);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-20);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-25);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-28);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-35);
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}
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// mount holes
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translate([size-hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([size-hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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}
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translate([6.5, 5.5, -2]) rotate([0, 0, 45]) cube([size, 1.5, thick+4]);
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translate([5, size-6, -2]) rotate([0, 0, -45]) cube([size, 1.5, thick+4]);
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}
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}
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}
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if(style == "fan_1" && (size == 50 || size == 60 || size == 70)) {
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union() {
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difference() {
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union () {
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-2);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-14);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-18);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-30);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-34);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-46);
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}
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if(size > 50) {
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-50);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-59);
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}
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}
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// mount holes
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translate([size-hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([size-hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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}
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translate([8.5, 7, -2]) rotate([0, 0, 45]) cube([size > 60 ? size+4 : size+1, 2, thick+4]);
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translate([6.5, size-8, -2]) rotate([0, 0, -45]) cube([size > 60 ? size+4 : size+1, 2, thick+4]);
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}
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}
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}
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if(style == "fan_1" && size >= 80) {
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union() {
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difference() {
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union () {
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-2);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-9);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-14);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-21);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-26);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-33);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-38);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-45);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-50);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-57);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-62);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-68);
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}
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if(size == 92) {
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-74);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-80);
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}
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difference() {
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translate([size/2, size/2, -1]) cylinder(h=thick+2, d=size-85);
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translate([size/2, size/2, -2]) cylinder(h=thick+4, d=size-91);
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}
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}
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// mount holes
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translate([size-hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([size-hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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}
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translate([6.5, 4.25, -2]) rotate([0, 0, 45]) cube([size*1.2, 3, thick+4]);
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translate([4.25, size-6.5, -2]) rotate([0, 0, -45]) cube([size*1.2, 3, thick+4]);
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}
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}
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}
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if(style == "fan_2") {
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inner = size == 30 ? 24 :
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size == 40 ? 32 :
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size == 50 ? 40 :
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size == 60 ? 50 :
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size == 70 ? 61.9 :
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size == 80 ? 71.5 :
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size * 0.8; // Use 80% as default
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rings = size <= 40 ? 4 : 6;
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bar_size = size <= 40 ? 2 : 3;
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screw_offset = inner / 2;
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center_point = size * 0.5;
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base_ring_size = size * 0.95;
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rings_spacing = size / rings;
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translate([size/2, size/2, -1])
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union() {
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translate([screw_offset, screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
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translate([-screw_offset, screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
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translate([screw_offset, -screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
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translate([-screw_offset, -screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
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difference() {
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union() {
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for(i=[inner:-rings_spacing:0]) {
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difference() {
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cylinder(d=base_ring_size - i, h=thick+2);
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translate([0, 0, -1]) cylinder(d=base_ring_size - i - (rings_spacing/2), h=thick+4);
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}
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}
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}
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translate([0, 0, 11])
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union() {
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cylinder(d=bar_size*2+0.1, thick+2); // Add a circle to prevent any tiny holes around cross bar
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rotate([0, 0, 45]) cube([size, bar_size, thick+4], center=true);
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rotate([0, 0, 45]) cube([bar_size, size, thick+4], center=true);
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}
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}
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}
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}
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if(style == "fan_hex") {
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hex_pos = size == 30 ? [-11.75, -4.5, 0] :
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size == 40 ? [-14, -11.25, 0] :
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size == 50 ? [-16, -6.5, 0] :
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size == 60 ? [-11, -1.5, 0] :
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size == 70 ? [-13, -3.5, 0] :
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size >= 80 ? [-8.25, -3.5, 0] : [-9, -4, 0];
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union() {
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difference () {
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translate([1+(size-2)/2, 1+(size-2)/2, -1]) cylinder(h=thick+2, d=size-2);
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union() {
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difference() {
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translate([1+(size-2)/2, 1+(size-2)/2, -1-adj]) cylinder(h=thick+3, d=size-2);
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translate(hex_pos) vent_hex(15, 8, thick+4, 12, 2, "horizontal");
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}
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}
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}
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}
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// mount holes
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translate([size-hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([size-hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, size-hole_pos, -1]) cylinder(h=thick+2, d=3);
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translate([hole_pos, hole_pos, -1]) cylinder(h=thick+2, d=3);
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}
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}
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