// Cut size
_cutwidth = 40;
_cutlength = 40;

// Base size
height = 10;
width = 117+4;
length = _cutlength+4;

difference () {
    
    linear_extrude (height) {
        difference () {
            square([width,length], center=false); //Base
        };
    };
    translate ([(2),0,2])
    linear_extrude (height) {
        difference () {
            square([width-4,length], center=false);
        };
    };
    
    translate ([(width/2-_cutwidth/2),(2)])
    linear_extrude (2) {
        difference () {
            square([_cutwidth,_cutlength], center=false);
        };
    };

    difference () {
    
    };
    
};