// -*- C -*-

include <utils.scad>

//tongue_w = 11.92 + 0.4;

usb_w = 12.01 - 0.3;
usb_wall_w = 0.75 - 0.1;
usb_tongue_d = 8.97 - 0.2;
usb_wall_h = 4.54 - 2.04;
usb_ceil_th = 0.125;

side_wall_th = 1.5;

board_l = 13.56 + 0.2;
board_w = 19.14 + 0.2;
board_th = 1.92 + 0.1;

module BothSides(){
  for (m=[0,1]) {
    mirror([m,0]) {
      children();
    }
  }
}
module TopSmallWallsPlan() {
  for (m=[0,1]) {
    mirror([m,0]) {
      rectfromto([ -usb_w/2,              -0.01        ],
		 [ -usb_w/2 + usb_wall_w, usb_tongue_d ]);
    }
  }
}
module TopCeilPlan() {
  BothSides(){
    rectfromto([ -usb_w/2,              -0.01        ],
	       [ 0.1,                   usb_tongue_d ]);
    rectfromto([ -board_w/2 - side_wall_th, 0            ],
	       [ 0.1,                       -board_l     ]);
  }
}
module TopMainWallsPlan() {
  BothSides(){
    rectfromto([ -board_w/2 - side_wall_th, 0            ],
	       [ -board_w/2,                -board_l     ]);
  }
}

module Top(){
  linextr(0, usb_wall_h)
    TopSmallWallsPlan();
  linextr(usb_wall_h - usb_ceil_th, usb_wall_h)
    TopCeilPlan();
  linextr(-board_th, usb_wall_h)
    TopMainWallsPlan();
}

Top();