total_height = 220;
volume = 118; //mL
cup_height = 30;
wall_thickness = 3;

// Calculate radius
inside_radius = sqrt(volume*1000/(PI*cup_height));

$fn=100;
// Generate cup
union(){
    translate([0,0,cup_height/2+wall_thickness/2])
    difference(){
        cylinder(r=inside_radius+wall_thickness, h=cup_height+wall_thickness, center=true);
        
        translate([0,0,wall_thickness])
        cylinder(r=inside_radius, h=cup_height+wall_thickness, center=true);
    }

    translate([0,0,total_height/2])
    rotate_extrude(angle=30)
    translate([wall_thickness/2+inside_radius,0,0])
    square(size=[wall_thickness, total_height], center=true);
}