Lens not rotating about Z Axis

use <threads-scad/threads.scad>;
$fa=1;
$fs= 0.4;

$fn = $preview ? 64:360;


// For BambuLabs Printer
// H=249,W-238,D=256
// Safe bet is a 225 mm cube
// This drawing is 200 mm, or 7.87 inches
//Cntrl-Shift-V   Show all, Max Zoom
// Cad "Front View = Elevation"  Top View = "Plan"  The X-Y View?
//https://openscad.org/cheatsheet/
//https://openscad.org/cheatsheet/snapshot.html
//https://en.wikibooks.org/wiki/OpenSCAD_Tutorial
//PasteBin

$vpr=[90,0,0]; // Front
//$vpr=[0,0,0];  // Top

c_h = 100; // height
c_r = 100; // radius
c_t = 5;   //thickness
c_2t = 2*c_t;

pi_l= 85+3;  // +3 is the overhang of usb/ether
pi_w= 56;
pi_h= 20;
pi_hole_r= 2.7;
pi_edge_off = 3.5;
pi_hole_wid_dist = 49;
pi_hole_len_dist = 58;

module main_hull(){

// If I don't spesicfy r= for radius, it becomes a cone?
difference() {
    cylinder(h=c_h,r=c_r,false);
    translate([0,0,-10])
        cylinder(h=1.2*c_h,r=c_r-c_2t,true);

    // Lens Cutout
    rotate([0,0,45])
       %cylinder(h=3,r= 25.5,false);

}
}


module pi_footprint() {


color("crimson",1.0)

          translate([c_h - ((c_h-pi_l)/2),40,0])
      rotate([0,-45,90])

            cube([pi_w, pi_l,pi_h],center=false);

}

rotate([0,90,0])
    main_hull();

pi_footprint();