//Custom Lidded Box
//based on Hybris Labs Instructable http://www.instructables.com/id/Creating-a-custom-sized-box-for-3D-printing-with-O/

// Global resolution
$fs = 0.1;  // Don't generate smaller facets than 0.1 mm
$fn = 200; //results in smooth shape

//Variables
length = 100; //length of box in mm
width = 100; //width of box in mm
height = 30; //height of box in mm
radius = 10; //radius of corner cylinder in mm
doubleRadius = 2*radius; //doubleRad

//cutout
translate([10,10,0])
{
difference()
{
    roundedBox(length, width, height, radius);
    translate([1,1,1])
        {
        //box wall thickness parameters
        roundedBox(length-2, width-2, height-1, radius);
        }
    }
}

//Lid
translate([length*2, 10, 0]) //if you change the size of the box you will need to move the lid so it does not intersect the box
{
    mirror([1,0,0])
    {
        roundedBox(length, width, 1, radius);
        difference()
        {
            translate([1,1,0])
            {
                roundedBox(length-2, width-2, 4, radius);
            }
            translate([2,2,0])
            {
                roundedBox(length-4, width-4, 4, radius);
            }
        }
    }
}

//Lid Tab
// translate([120,length-13,0]) //if you change the size of the box you will need to move the lid tab to fit on the lid
// {
//     difference()
//     {
//         difference()
//         {
//             cylinder(h=2, r=7);//outer ring
//             cylinder(h=2, r=3);//inner ring

//         }
//         translate([0,-10,0])
//         {
//             cube(size=[10,10,2]);//cut out edge of box
//         }
//     }
// }

//Modules
module roundedBox(length, width, height, radius)
{
//basic box shape, Minkowski function rounds cube corners
minkowski()
    {
        cube (size=[length-doubleRadius, width-doubleRadius, height]);
        cylinder(r=radius, h = 0.01);
    }
}