71 lines
2.2 KiB
OpenSCAD
71 lines
2.2 KiB
OpenSCAD
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/*
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* OpenSCAD GridBeam Library (www.openscad.org)
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* Copyright (C) 2009 Timothy Schmidt
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*
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* License: LGPL 2.1 or later
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*/
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// zBeam(segments) - create a vertical gridbeam strut 'segments' long
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// xBeam(segments) - create a horizontal gridbeam strut along the X axis
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// yBeam(segments) - create a horizontal gridbeam strut along the Y axis
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// shelf(width, height) - create a shelf suitable for use in gridbeam structures width and height in 'segments'
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// translateBeam([x, y, z]) - translate gridbeam struts or shelves in X, Y, or Z axes in units 'segments'
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include <units.scad>
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$beam_width = inch * 1.5;
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$beam_hole_radius = inch * 5/16;
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$beam_is_hollow = 1;
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$beam_wall_thickness = inch * 1/8;
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$beam_shelf_thickness = inch * 1/4;
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module zBeam(segments) {
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difference() {
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cube([$beam_width, $beam_width, $beam_width * segments]);
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for(i = [0 : segments - 1]) {
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translate([$beam_width / 2, $beam_width + 1, $beam_width * i + $beam_width / 2])
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rotate([90,0,0])
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cylinder(r=$beam_hole_radius, h=$beam_width + 2);
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translate([-1, $beam_width / 2, $beam_width * i + $beam_width / 2])
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rotate([0,90,0])
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cylinder(r=$beam_hole_radius, h=$beam_width + 2);
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}
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if ($beam_is_hollow == 1) {
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translate([$beam_wall_thickness, $beam_wall_thickness, -1])
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cube([$beam_width - $beam_wall_thickness * 2, $beam_width - $beam_wall_thickness * 2, $beam_width * segments + 2]);
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}
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}
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}
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module xBeam(segments) {
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translateBeam([0,0,1])
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rotate([0,90,0])
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zBeam(segments);
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}
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module yBeam(segments) {
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translateBeam([0,0,1])
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rotate([-90,0,0])
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zBeam(segments);
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}
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module translateBeam(v) {
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for (i = [0 : $children - 1]) {
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translate(v * $beam_width) child(i);
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}
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}
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module shelf(width, depth) {
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difference() {
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cube([width * $beam_width, depth * $beam_width, $beam_shelf_thickness]);
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translate([-1, -1, -1])
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cube([$beam_width + 2, $beam_width + 2, $beam_shelf_thickness + 2]);
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translate([-1, (depth - 1) * $beam_width, -1])
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cube([$beam_width + 2, $beam_width + 2, $beam_shelf_thickness + 2]);
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translate([(width - 1) * $beam_width, -1, -1])
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cube([$beam_width + 2, $beam_width + 2, $beam_shelf_thickness + 2]);
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translate([(width - 1) * $beam_width, (depth - 1) * $beam_width, -1])
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cube([$beam_width + 2, $beam_width + 2, $beam_shelf_thickness + 2]);
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}
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}
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