cup_radius = 30;  // Radius of the cup
cup_height = 100; // Height of the cup
wall_thickness = 5;  // Thickness of the cup's wall
handle_radius = 15;  // Radius of the handle
handle_height = 5;  // Height of the handle

// Create the cup
difference() {
    cylinder(h = cup_height, r = cup_radius); 

    // Create the empty part of the cup
    translate([0, 0, wall_thickness]) {
        cylinder(h = cup_height - wall_thickness+1, r = cup_radius - wall_thickness); // empty space
        
    }
}

// Create the cup handle
translate([cup_radius - wall_thickness, cup_height / 4, cup_height / 2]) {
    rotate([90, 0, 45]) {
        
        difference() {
            // Create the outer part of the handle
            cylinder(h = handle_height, r = handle_radius);
            // Inner part of the handle
            translate([0, 0, -1]) {
                cylinder(h = handle_height + 3, r = handle_radius - 3); // Inner part of the handle
            }
        }
    }
}