Parametric razor case, designed to fit into an Altoids tin.

altoids-coins.scad

//Coin case, designed to fit into an Altoids tin.
//Open with http://www.openscad.org
//Origionally by MooseV2, modified by Catt0s



height = 23;
tin = [90, 55, height, 12]; //length, width, depth, corner radius
dime = 17.91/2; // dime
penny = 19.05/2; // penny
nickle = 21.21/2; // nickle
quarter = 24.26/2; // quarter
dollar = 26.5/2; // dollar
coins = [  
    // center
    [
        nickle, // size
        [-20,0]  // position 
    ],

    [
        dime, // size
        [13,0]  // position 
    ],
    // edge: 
    [
        quarter, // size
        [((tin[3]/2.1 + tin[0]/2) - 3.5*quarter),
         (0-((tin[3]/2.1 + tin[1]/2) - quarter))]  // position 
    ],
    [
        nickle, // size
        [(tin[3]/2.1 + tin[0]/2) - 3.5*nickle,
        (tin[3]/2.1 + tin[1]/2) - nickle]  // position 
    ],
    [
        penny, // size
        [0-((tin[3]/2.2 + tin[0]/2) - penny),
        0]  // position 
    ],
    [
        penny, // size
        [0-((tin[3]/2.3 + tin[0]/2) - 3.1*penny),
        0-((tin[3]/2.5 + tin[1]/2) - penny)]  // position
    ],
    [
        dime, // size
        [0-((tin[3]/2.5 + tin[0]/2) - 3.1*dime),
         ((tin[3]/2.5 + tin[1]/2) - dime)]  // position 
    ],
    // corners:
    [
        penny, // size
        [0-((tin[3]/2.5 + tin[0]/2) - penny),
        0-((tin[3]/2.5 + tin[1]/2) - penny)]  // position
    ],
    [
        dime, // size
        [0-((tin[3]/2.5 + tin[0]/2) - dime),
         ((tin[3]/2.5 + tin[1]/2) - dime)]  // position 
    ],
    [
        quarter, // size
        [((tin[3]/2.1 + tin[0]/2) - quarter),
         (0-((tin[3]/2.1 + tin[1]/2) - quarter))]  // position 
    ],
    [
        dollar, // size
        [(tin[3]/2.1 + tin[0]/2) - dollar,
        (tin[3]/2.1 + tin[1]/2) - dollar]  // position 
    ],

    ];
difference() {
	//Main tin
	roundedRect(tin);
	
    
	//Subtract coins
    for (coin = coins){
        pos = coin[1];
        size = coin[0];
        translate([pos[0],pos[1],1])
        cylinder(height,size,size);
    }
}

module roundedRect(size)
{
	//http://www.thingiverse.com/thing:9347
	x = size[0];
	y = size[1];
	z = size[2];
	radius = size[3];
	linear_extrude(height=z)
	hull()
	{
		// place 4 circles in the corners, with the given radius
		translate([(-x/2)+(radius/2), (-y/2)+(radius/2), 0])
		circle(r=radius);
	
		translate([(x/2)-(radius/2), (-y/2)+(radius/2), 0])
		circle(r=radius);
	
		translate([(-x/2)+(radius/2), (y/2)-(radius/2), 0])
		circle(r=radius);
	
		translate([(x/2)-(radius/2), (y/2)-(radius/2), 0])
		circle(r=radius);
	}
}