63 lines
2.7 KiB
OpenSCAD
63 lines
2.7 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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vent_panel_hex(x, y, thick, cell_size, cell_spacing, border, borders);
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*/
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/*
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NAME: vent_panel_hex
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DESCRIPTION: creates hex vent panel
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TODO: none
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USAGE: vent_panel_hex(x, y, thick, cell_size=8, cell_spacing=3, border=3, borders="default")
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x = #rows
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y = #columns
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thick = pattern thickness
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cell_size = size of hex
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cell_spacing = space between hex
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border = size of borber
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borders = "none", "default"
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*/
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module vent_panel_hex(x, y, thick, cell_size=8, cell_spacing=3, border=3, borders="default") {
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hole = 3.2;
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xb = (borders == "y" || borders == "none") ? cell_spacing : border;
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yb = (borders == "x" || borders == "none") ? cell_spacing : border;
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hxb = max(yb/2, cell_spacing + hole);
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hyb = max(xb/2, cell_spacing + hole);
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cells_x = floor((2*(x-2*xb-cell_size)/(cell_size+cell_spacing))+1);
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cells_y = floor(((sqrt(12)*(y-2*yb)-4*cell_size)/(3*(cell_size+cell_spacing)))+1);
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csx = cell_size + (cells_x-1)*(cell_size+cell_spacing)/2;
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csy = sqrt(4/3)*cell_size + ((cell_size+cell_spacing)*sqrt(3/4)*(cells_y-1));
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difference() {
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color("grey",1) slab([x,y,thick],2);
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color("grey",1) translate([(x-csx)/2,(y-csy)/2,-1])
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vent_hex(cells_x, cells_y, thick+3, cell_size, cell_spacing, "horizontal");
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if (borders != "none") {
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color("grey",1) translate([ hxb, hyb, -1]) cylinder(d=hole, h=thick+3);
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color("grey",1) translate([x - hxb, hyb, -1]) cylinder(d=hole, h=thick+3);
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color("grey",1) translate([ hxb, y - hyb, -1]) cylinder(d=hole, h=thick+3);
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color("grey",1) translate([x - hxb, y - hyb, -1]) cylinder(d=hole, h=thick+3);
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}
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}
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} |