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// CSG-modules.scad - Basic usage of modules, if, color, $fs/$fa
// Change this to false to remove the helper geometry
debug = true;
// Global resolution
$fs = 0.1; // Don't generate smaller facets than 0.1 mm
$fa = 5; // Don't generate larger angles than 5 degrees
// Main geometry
difference() {
intersection() {
body();
intersector();
}
holes();
}
// Helpers
if (debug) helpers();
// Core geometric primitives.
// These can be modified to create variations of the final object
module body() {
color("Blue") sphere(10);
}
module intersector() {
color("Red") cube(15, center=true);
}
module holeObject() {
color("Lime") cylinder(h=20, r=5, center=true);
}
// Various modules for visualizing intermediate components
module intersected() {
intersection() {
body();
intersector();
}
}
module holeA() rotate([0,90,0]) holeObject();
module holeB() rotate([90,0,0]) holeObject();
module holeC() holeObject();
module holes() {
union() {
holeA();
holeB();
holeC();
}
}
module helpers() {
// Inner module since it's only needed inside helpers
module line() color("Black") cylinder(r=1, h=10, center=true);
scale(0.5) {
translate([-30,0,-40]) {
intersected();
translate([-15,0,-35]) body();
translate([15,0,-35]) intersector();
translate([-7.5,0,-17.5]) rotate([0,30,0]) line();
translate([7.5,0,-17.5]) rotate([0,-30,0]) line();
}
translate([30,0,-40]) {
holes();
translate([-10,0,-35]) holeA();
translate([10,0,-35]) holeB();
translate([30,0,-35]) holeC();
translate([5,0,-17.5]) rotate([0,-20,0]) line();
translate([-5,0,-17.5]) rotate([0,30,0]) line();
translate([15,0,-17.5]) rotate([0,-45,0]) line();
}
translate([-20,0,-22.5]) rotate([0,45,0]) line();
translate([20,0,-22.5]) rotate([0,-45,0]) line();
}
}
echo(version=version());
// Written by Marius Kintel <marius@kintel.net>
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to the
// public domain worldwide. This software is distributed without any
// warranty.
//
// You should have received a copy of the CC0 Public Domain
// Dedication along with this software.
// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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