$fn=60;

include <BOSL2/std.scad>

ext=32;
ep=2;

difference() {
    translate([0,0,3.2]) {
        translate([0,0,4.45]) tube(od=ext, wall=ep-.75, h=3.5);
        tube(od=ext, wall=ep, h=6.4);
    }
    translate([0,0,12.15]) color("cyan") zcyl(r1=14.35, r2=11.45, l=24.30);
}

color("red") translate([0,0,8.65]) tube(od=ext-1.5, wall=ep-.75, h=1.6, rounding=.8);