A holder for table lamp to fit on the corner of IKEA table

lampHolder.scad

$fn=60;

holeH=37;
holeD=12.5;
h=40;

module lampHolder() {
    difference() {
        holderBody();
        tableSpace();
        lampHole();
    }
}

module holderBody() {
    hull() {
        cylinder(d=17, h=h);
        cylinder(d=75, h=10);
        translate([-40,-40,-30]) cube([80,80,6]);
    }
}

module tableSpace() {
    translate([-53,-53,-23]) cube([80,80,23]);
}

module lampHole() {
    translate([0,0,h-holeH]) 
        cylinder(d=holeD,h=holeH);
}

lampHolder();