Learn OPENSCAD-MACROS with Real Code Examples

module bolt(length=20, radius=3) {
    cylinder(h=length, r=radius);
    sphere(r=radius*1.2);
}

// Example usage
bolt(30, 4);
translate([0,10,0]) bolt(15, 2.5);

An OpenSCAD macro (module) that generates a simple parametric bolt with customizable shaft length and radius.

module gear(teeth=12, radius=20, thickness=5) {
    for (i = [0:teeth-1]) {
        rotate(i*360/teeth)
        square([2, radius], center=true);
    }
    extrude(height=thickness)
        circle(r=radius);
}

// Example usage
gear(16, 25, 8);

A simplified gear macro to generate a 2D gear profile extruded into 3D.