$fn = 32;

$space = 3;
$width = 15.5;
$length = $width;
$height = 1;
$holes = $height*4;
$cut = $holes/2*-1;
$clearance = 0.2;
$switchDistance = $width+ $space;

$shellWidth = 6;
$shellHeight = 3.5 + $clearance;
$magnetWidth = 4;
$magnetHeight = 2;


$columns = 6;
$rows = 5;

$fingerStep = 5;

$xBase = (($width + $space) * $columns) + $space;
$yBase = (($length + $space) * $rows) + $space;


module pin(){
    cylinder(h=$holes, r=1, center=false);
}

module switch($diodesTop = false){
    $xCenter = $width/2;
    $yCenter = $length/2;
    translate([$xCenter, $yCenter, 0])
        cylinder(h=$holes, r=2.522, center=false);
    translate([$xCenter + 0, $yCenter + 5.9,0])
        pin();
    translate([$xCenter + 5, $yCenter + 3.8,0])
        pin();
    translate([$xCenter + -5, $yCenter + 3.8,0])
        pin();
    translate([$xCenter + -5, $yCenter + -5.15,0])
        pin();
    translate([$xCenter + 5, $yCenter+-5.15,0])
        pin();
    translate([0, $length + 1.4, 0]);
    $dDistanceFromCenter = $switchDistance/2;
    $dWidth = 10.95;
    $dHeight = 1.8;
    if ($diodesTop){
        translate([$xCenter - ($dWidth/2), $yCenter + $dDistanceFromCenter - ($dHeight/2), 0]){
            cube([$dWidth, $dHeight, $holes]);
        }
    }
 }


module switchColumn(){
   difference() {
       translate([-($space/2), -($space/2)])
        cube([$switchDistance, $switchDistance * $rows, $height]);
       for (y=[0:$rows-1]){
          translate([0 * ($width + $space) ,y * ($length+$space) ,0]) {
            switch(y<3);
          }
       }
   }
}

module rightTopDampener(){
    union(){
    switchColumn();
    translate([$switchDistance,0,0])
        switchColumn();
    translate([$switchDistance * 2,5,0])
        switchColumn();
    translate([$switchDistance * 3,0,0])
        switchColumn();
    translate([$switchDistance * 4,-5,0])
        switchColumn();
    translate([$switchDistance * 5,-5,0])
        switchColumn();
    }
}

module leftTopDampener(){
    rotate([0,180,0]){
        rightTopDampener();
    }
}


module topDampeners(){
translate([10,0,0]){    
rightTopDampener();
}
translate([-10,0,0]){
leftTopDampener();
}
}

module case(){
    module magnets(){
        cylinder(h=$magnetHeight + $clearance, r=$magnetWidth + $clearance / 2);
    }
    points = [
[0,0],
[0, $switchDistance * $rows],
[$switchDistance * 2, $switchDistance * $rows],
[$switchDistance * 2, $switchDistance * $rows + $fingerStep],
[$switchDistance * 3, $switchDistance * $rows + $fingerStep],
[$switchDistance * 3, $switchDistance * $rows],
[$switchDistance * 4, $switchDistance * $rows],
[$switchDistance * 4, $switchDistance * $rows - $fingerStep],
[$switchDistance * 6, $switchDistance * $rows - $fingerStep],
[$switchDistance * 6, 0 - $fingerStep],
[$switchDistance * 4, 0 - $fingerStep],
[$switchDistance * 4, 0],
[$switchDistance * 3, 0],
[$switchDistance * 3, 0 + $fingerStep],
[$switchDistance * 2, 0 + $fingerStep],
[$switchDistance * 2, 0],
];
difference(){
union() {
    linear_extrude($shellHeight){
        difference(){
            offset(r=$shellWidth/2 + $clearance, chamfer=true) polygon(points);
            offset(r=$clearance) polygon(points);
        }
    }
    translate([0,0,-3]){
    linear_extrude(3){
        offset(r=$shellWidth/2 + $clearance, chamfer=true) polygon(points);
    }
}
}
    rotate([90,0,0]) {    
        translate([0,0,-500]){
        linear_extrude(99999){
            polygon(
            [
                [0 - $shellWidth/2, -3],
                [$switchDistance * 6 + $switchDistance/2,0], 
                [$switchDistance * 6 + $shellWidth/2, -3]
            ]
            );
        }
    }
    }
    // usb
    translate([10, $switchDistance * 5, -2]){
        union() {
            cube([10,$shellWidth,5]);
            translate([-5,-$shellWidth + $clearance - 40,0])
                cube([20,$shellWidth + 40,5]);
            
        }
    }
    // aux
    translate([-$shellWidth,75,0])
        rotate([0,90,0])
            cylinder(h=$shellWidth + 15,r=2.5);
    translate([0,0,5])
        magnets();

}
}

//topDampeners();
case();