B = 19.05;
M = 6.35;

A = 5; // Alignment pad size


BD =  B - M;

W = 250-20-20; // Internal width
H = 450-20-20; // Internal height
D = 275-20; // Internal depth

WF182_HEIGHT = 165.5;

AMT1I_WIDTH = 100;
AMT1I_HEIGHT = 130;

module wf182() {
    intersection() {
      circle(d=182, $fn=100);
      square([182,WF182_HEIGHT], center=true);
    }
}

module amt1i() {
    offset(r=BD/2) square([AMT1I_WIDTH, AMT1I_HEIGHT], center=true);
}

R = 152.5; // WF182_HEIGHT/2 + 4 + AMT1I_HEIGHT/2;

module alignment() {
    for (i=[25+AMT1I_HEIGHT/2, 0, -R, R]) {
      translate([110, i]) rotate(45) square(A,center=true);
      translate([0, i]) rotate(45) square(A,center=true);
      translate([-110, i]) rotate(45) square(A,center=true);
    }
}

// Side panel and tweeter alignment
difference() {
  square([275-19-BD, 450+100], center=true);
    
  // Tweeter cutout
  translate([0, 450/2-25-130/2]) { 
    offset(r=BD/2) square([AMT1I_WIDTH, AMT1I_HEIGHT], center=true);
    translate([100, 0]) rotate(45) square(A,center=true);
    translate([-100, 0]) rotate(45) square(A,center=true);
  }
  
  // Tweeter flush mount
  translate([0,-450/2+25+130/2]) {
    offset(r=BD/2) square([AMT1I_WIDTH-20, AMT1I_HEIGHT-10], center=true);
      
    translate([100, 0]) rotate(45) square(A,center=true);
    translate([-100, 0]) rotate(45) square(A,center=true);
  }

  translate([0, -450/2]) rotate(45) square(A,center=true);
  translate([0, 450/2]) rotate(45) square(A,center=true);
  translate([100, 0]) rotate(45) square(A,center=true);
  translate([-100, 0]) rotate(45) square(A,center=true);
  rotate(45) square(A,center=true);

}

// Front face flush mount and back tube cutout
translate([255,0])
difference() {
  square([250, 450], center=true);

    
  translate([0, -450/2+207.5]) {
      difference() {
        offset(r=BD/2) wf182();
        wf182();
      }
      rotate(45) square(3,center=true);
  translate([220/2, 0]) rotate(45) square(A,center=true);
  translate([-220/2, 0]) rotate(45) square(A,center=true);
      for ( i = [0 : 60 : 360] ){
        rotate(i) translate([169.5/2,0]) circle(d=4, $fn=50);
      }
      for ( i = [0,45,135,180,225] ){
        rotate(i) translate([182/2,0]) rotate(45) square(3,center=true);
      }
      
      translate([0,165.5/2]) rotate(45) square(3,center=true);
      translate([0,-165.5/2]) rotate(45) square(3,center=true);

  }
  translate([0, -420/2]) rotate(45) square(A,center=true);
  translate([0, 420/2]) rotate(45) square(A,center=true);
  translate([220/2, 0]) rotate(45) square(A,center=true);
  translate([-220/2, 0]) rotate(45) square(A,center=true);
}


// Front woofer cutout & groove
translate([-255,0])
difference() {
  square([250-20-20-BD, 450-20-20-BD], center=true);
    
  // Woofer cutout
  translate([0, -450/2+207.5]) {
      circle(d=152+BD);
      for ( i = [0 : 90 : 360] ){
        rotate(i) translate([90,0]) rotate(45) square(A,center=true);
      }
  }
  
  translate([0, -180]) rotate(45) square(A,center=true);
  translate([0, 180]) rotate(45) square(A,center=true);
  translate([-90,0]) rotate(45) square(A,center=true);
  translate([90,0]) rotate(45) square(A,center=true);

}


// Back reflex tube and terminal cutout & groove
translate([-500,0])
difference() {
  square([250-20-20-BD, 450-20-20-BD], center=true);
    
  // Terminal cutout
  translate([0, 450/2-(450-207.5)/ 2])    
  offset(r=BD/2)  square([93 - BD, 80 - BD], center=true);

  // Bass reflex tube
  translate([0, -450/2+80]) {
      circle(d=97, $fn=100);
  }
  
  // Alignment
  translate([0, -180]) rotate(45) square(A,center=true);
  translate([0, 180]) rotate(45) square(A,center=true);
  translate([-90,0]) rotate(45) square(A,center=true);
  translate([90,0]) rotate(45) square(A,center=true);

}