90 lines
2.5 KiB
OpenSCAD
90 lines
2.5 KiB
OpenSCAD
// ==============================================
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// Miscellaneous profiles (aluminum etc)
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// By Vitaly Mankevich / contraptor.org, (c) 2012
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// LGPL 2.1
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// ==============================================
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//
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// PROFILES (DIMENSIONLESS UNLESS SPECIFIED)
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// -----------------------------------------
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// profile_angle_equal(1, 1/8);
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// profile_angle_unequal(1, 1/2, 1/16);
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// profile_square_tube(1.5, 1/8);
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// profile_rect_tube(1.5, 2, 1/8);
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// profile_channel(1.5, 1, 1/8);
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//
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// profile_8020_fractional_1010(); // inches
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// profile_misumi_metric_2020(); // millimeters
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// profile_makerbeam(); // millimeters
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//
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// EXTRUDED PROFILES
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// -----------------
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// linear_extrude (height = 3.5) profile_square_tube(1.5, 1/8);
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//
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$fn = 24;
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module profile_angle_equal(side, wall) {
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difference () {
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square (side);
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translate([wall, wall, 0]) square (side - wall);
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}
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}
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module profile_angle_unequal(side_x, side_y, wall) {
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difference () {
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square ([side_x, side_y]);
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translate ([wall, wall, 0]) square ([side_x - wall, side_y - wall]);
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}
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}
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module profile_square_tube(side, wall) {
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difference () {
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square (side, center = true);
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square (side-wall*2, center = true);
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}
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}
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module profile_rect_tube(side_x, side_y, wall) {
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difference () {
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square ([side_x, side_y], center = true);
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square ([side_x - wall*2, side_y - wall*2], center = true);
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}
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}
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module profile_channel(base, side, wall) {
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translate ([0, side/2, 0]) difference () {
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square ([base, side], center = true);
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translate ([0, wall/2, 0]) square ([base - wall*2, side - wall], center = true);
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}
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}
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module profile_tslot_generic (pitch, slot, lip, web, core, hole) {
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// pitch = side width, slot = slot width, lip = thickness of the lip, web = thickness of the web, core = side of the center square, hole = center hole diameter
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difference () {
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union() {
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difference () {
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square (pitch, center=true);
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square (pitch - lip*2, center=true);
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square ([pitch, slot], center=true);
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square ([slot, pitch], center=true);
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}
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rotate ([0, 0, 45]) square ([pitch*1.15, web], center=true);
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rotate ([0, 0, -45]) square ([pitch*1.15, web], center=true);
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square (core, center=true);
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}
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circle (hole/2);
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}
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}
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module profile_8020_fractional_1010 () {
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profile_tslot_generic (pitch = 1, slot = 0.26, lip = 0.1, web = 0.13, core = 0.45, hole = 0.28);
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}
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module profile_misumi_metric_2020 () {
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profile_tslot_generic (pitch = 20, slot = 5.2, lip = 2, web = 2.6, core = 9, hole = 5.6);
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}
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module profile_makerbeam () {
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profile_tslot_generic (pitch = 10, slot = 2.5, lip = 1, web = 2, core = 1, hole = 0);
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}
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