Set Ops
Union

Combines two or more objects into one.
//!OpenSCAD
union(){
//Object1
//Object2
}
Difference

Subtracts one or more objects from the first object in the list.
//!OpenSCAD
difference() {
//Object1
//Object2
}
Intersection

Returns the intersection, or shared space, of two or more objects.
//!OpenSCAD
intersection() {
//Object1
//Object2
}
Hull

Combines two or more objects by “wrapping” them together in a hull.
//!OpenSCAD
hull() {
//Object1
//Object2
}