// Parameters
keyhole_out_size = 200;
keyhole_thickness = 100;
keyhole_width = 40;
keyhole_color = false;

// Horseshoe shape
//difference() {
  /* union() { */
  /*   // Main horseshoe shape */
  /*   translate([0, size/2, 0]) { */
  /*     rotate([90, 0, 0]) { */
  /*       cylinder(r=size/2, h=thickness); */
  /*     } */
  /*   } */
  /*   translate([0, -size/4, 0]) { */
  /*     rotate([90, 0, 0]) { */
  /*       cylinder(r=size/2, h=thickness); */
  /*     } */
  /*   } */
  /*   translate([size/2, 0, 0]) { */
  /*     rotate([0, 90, 0]) { */
  /*       cylinder(r=size/4, h=thickness); */
  /*     } */
  /*   } */
  /*   translate([-size/2, 0, 0]) { */
  /*     rotate([0, 90, 0]) { */
  /*       cylinder(r=size/4, h=thickness); */
  /*     } */
  /*   } */

  /*   // Cut out center of horseshoe */
  /*   translate([0, 0, thickness/2]) { */
  /*     cylinder(r=size/4, h=thickness*2); */
  /*   } */
  /* } */
//}
module keyhole(withColors=keyhole_color) {
  maybe_color=withColors?"red":undef;
  color(maybe_color, 1.0) {
    union() {
      difference() {
        difference() {
          cylinder(r=keyhole_out_size/2, h=keyhole_thickness);
          translate([0, -keyhole_out_size/2, 0]){
            cube([150, keyhole_out_size, keyhole_thickness]);
          }
        }
        cylinder(r=keyhole_out_size/2-keyhole_width, h=keyhole_thickness);
      }
      translate([0, -keyhole_out_size/2, 0]){
        cube([keyhole_out_size, keyhole_width, keyhole_thickness]);
      }
      translate([0, keyhole_out_size/2-keyhole_width, 0]){
        cube([keyhole_out_size, keyhole_width, keyhole_thickness]);
      }
    }
  }
}
module outsite_plane() {
  difference() {
    cube([1000, 1000, 100]);
    translate([100, 100, -1]){cube([800, 800, 800]);}
  }
}

module caseplate(){
  union(){
    // Keyholes in low side
    translate([-200, 100, 0]){
      keyhole();
    }
    translate([-200, 900, 0]){
      keyhole();
    }
    // Keyholes high side
    translate([1200, 100, 100]){
      rotate([0, 180, 0]) {keyhole();}
    }
    translate([1200, 900, 100]){
      rotate([0, 180, 0]){keyhole();}
    }

    outsite_plane();
  }
}

module base(){

  translate([-800, 0, 0]){
    difference(){
      // We need to remove smaller cube
      //and then puctuate the bottom with sylinder
      //and cut the top off in the angle of the plate
      cube([770, 1000, 1000]);
      translate([100, 100, 100]){
        cube([600, 800, 1000]);
      }
      translate([400, 500, -100]){
        cylinder(r=300, h=200);
      }
      translate([400, -300, 1710]){
        rotate([0, 150, 0]){
          cube([1200, 1800, 1000]);
        }
      }
    }
  }

}

module floor(){
  translate([-1400, -700, -20]){
  color("grey", 1){
  cube([2000,2000,20]);}}
}

translate([0, 0, 800]){
  rotate([0, 150, 0]){
    caseplate();
  }
}
base();

floor();