$fn = $preview ? 16 : 72;

wall_thickness = 3;
//box = [21,21,21];
box = [195,75,36];
corner_radius = 2;
cutoff = 0.5;
overlap = 4;
taper = 0.1;

module outer_box(box) {
  minkowski(){
    cube([box.x+wall_thickness,box.y+wall_thickness,box.z+wall_thickness], center=true);
    sphere(d=wall_thickness);
  }
}

module box(size, wall=3, taper=0) {
translate([0,0,-size.z/2])
hull(){
linear_extrude(height=0.1, scale=0)
    offset(r=wall/2) square(size=[(size.x+wall-taper),(size.y+wall-taper)],center=true);
    translate([0,0,size.z])
    rotate([0,180,0])
linear_extrude(height=0.1, scale=0)
    offset(r=wall/2) square(size=[size.x+wall+taper,size.y+wall+taper],center=true);
    }
}

module bottom_box(box) {
  difference(){
     //box(size=[box.x,box.y,box.z+2*wall_thickness] ,wall=wall_thickness);
     outer_box(box);
    translate([0,0,box.z*cutoff+wall_thickness])
      cube([box.x+60,box.y+60,box.z],center=true);
      //cube(box,center=true);
    translate([0,0,box.z*cutoff+overlap-wall_thickness+0.01])
      #box([box.x,box.y,overlap],wall=wall_thickness/2,taper=0.5);
    translate([box.x/2+wall_thickness,0,0])
    rotate([90,0,90])
    side_text();
    translate([-box.x/2-wall_thickness,0,0])
    rotate([90,0,-90])
    side_text();
  }
}

module custom_text() {
  linear_extrude(height=0.4,center=true)
    text("Wetstone", valign="center", halign="center");
}

module side_text(){
  linear_extrude(height=0.4,center=true)
  scale(1.2)
    text("Wetstone", valign="center", halign="center");
    }

module top_box(box) {
  inner_wall_t = wall_thickness - 0.5;
  difference(){
    union(){
      difference(){
      outer_box(box);
       //box(size=[box.x,box.y,box.z+2*wall_thickness] ,wall=wall_thickness);
        translate([0,0,-box.z*(1-cutoff)+wall_thickness])
          cube([box.x+60,box.y+60,box.z],center=true);
      }
      translate([0,0,overlap-wall_thickness+0.1])
      box([box.x,box.y,overlap],wall=wall_thickness/2,taper=0.5);
    }
    translate([0,0,box.z/2+wall_thickness])
    linear_extrude(height=0.4,center=true)
    scale(3)
        text("Wetstone", valign="center", halign="center");
    cube(box,center=true);
    translate([box.x/2+wall_thickness,0,0])
    rotate([90,0,90])
    side_text();
    translate([-box.x/2-wall_thickness,0,0])
    rotate([90,0,-90])
    side_text();

  }
}

module top_box_flip() {
  rotate([0,180,0])
    top_box();
}

*  rotate([0,90,0]){
    bottom_box();
    translate([0,0,20])
    top_box();
  }