Merge PR #18 from 'AlbanetcSr/master' into master

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Dyana Wu 2020-10-09 11:49:06 +08:00
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// ==============================================
// Miscellaneous profiles (aluminum etc)
// By Vitaly Mankevich / contraptor.org, (c) 2012
// LGPL 2.1
// ==============================================
//
// PROFILES (DIMENSIONLESS UNLESS SPECIFIED)
// -----------------------------------------
// profile_angle_equal(1, 1/8);
// profile_angle_unequal(1, 1/2, 1/16);
// profile_square_tube(1.5, 1/8);
// profile_rect_tube(1.5, 2, 1/8);
// profile_channel(1.5, 1, 1/8);
//
// profile_8020_fractional_1010(); // inches
// profile_misumi_metric_2020(); // millimeters
// profile_makerbeam(); // millimeters
//
// EXTRUDED PROFILES
// -----------------
// linear_extrude (height = 3.5) profile_square_tube(1.5, 1/8);
//
$fn = 24;
module profile_angle_equal(side, wall) {
difference () {
square (side);
translate([wall, wall, 0]) square (side - wall);
}
}
module profile_angle_unequal(side_x, side_y, wall) {
difference () {
square ([side_x, side_y]);
translate ([wall, wall, 0]) square ([side_x - wall, side_y - wall]);
}
}
module profile_square_tube(side, wall) {
difference () {
square (side, center = true);
square (side-wall*2, center = true);
}
}
module profile_rect_tube(side_x, side_y, wall) {
difference () {
square ([side_x, side_y], center = true);
square ([side_x - wall*2, side_y - wall*2], center = true);
}
}
module profile_channel(base, side, wall) {
translate ([0, side/2, 0]) difference () {
square ([base, side], center = true);
translate ([0, wall/2, 0]) square ([base - wall*2, side - wall], center = true);
}
}
module profile_tslot_generic (pitch, slot, lip, web, hole) {
// 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
difference () {
union() {
difference () {
square (pitch, center=true);
square (pitch - lip*2, center=true);
square ([pitch, slot], center=true);
square ([slot, pitch], center=true);
}
rotate ([0, 0, 45]) square ([pitch*1.15, web], center=true);
rotate ([0, 0, -45]) square ([pitch*1.15, web], center=true);
square (core, center=true);
}
circle (hole/2, center = true);
}
}
module profile_8020_fractional_1010 () {
profile_tslot_generic (pitch = 1, slot = 0.26, lip = 0.1, web = 0.13, core = 0.45, hole = 0.28);
}
module profile_misumi_metric_2020 () {
profile_tslot_generic (pitch = 20, slot = 5.2, lip = 2, web = 2.6, core = 9, hole = 5.6);
}
module profile_makerbeam () {
profile_tslot_generic (pitch = 10, slot = 2.5, lip = 1, web = 2, core = 1, hole = 0);
}