// diameter inner lower
dil=98;

// diameter inner upper
diu=88;

// height between inner lower & inner upper
hiliu = 10;

// diameter outer lower
dol=105;

// diameter outer upper
dou=30;

// height cap
hc = 10;

// height base cylinder
hl = 10;

// diameter hole in cap
dh = 2;

$fn=100;

// cap
difference() {
    translate([0,0,hiliu])
    cylinder(d1=dol,d2=dou,h=hc);
    
    // hole in cap
    translate([0,0,hiliu])
    cylinder(d=dh,h=hc);
}

// middle
difference() {
    cylinder(d=dol,h=hiliu);
    
    cylinder(d1=dil,d2=diu,h=hiliu);
}

// base cylinder
difference() {
    translate([0,0,-hl])
    cylinder(d=dol,h=hl);
    
    translate([0,0,-hl])
    cylinder(d=dil,h=hl);
}