xantronix-z32/case/case.scad

$fn = 72;

pcb_width  = 257.175;
pcb_height =  95.250;
 
module keyboard_base_plate(pcb_width, pcb_height) {
    pcb_clearance_edge   = 1.0;
    pcb_clearance_bottom = 2.0;

    corner_radius = 0.5;

    module corner(translation, rotation) {
        translate(translation)
        rotate(rotation)
        rotate_extrude(angle=90) {
            intersection() {
                circle(r=corner_radius);
                square(corner_radius*2);
            }
        }
    }

    module edge(length, translation, rotation) {
        translate(translation)
        rotate(rotation)
        linear_extrude(length)
        intersection() {
            circle(r=corner_radius);
            square(corner_radius*2);
        }
    }

    /* Lower left corner */
    corner([0 - pcb_clearance_edge,
            0 - pcb_clearance_edge, 0], [-90, 90, 90]);

    /* Upper left orner */
    corner([0 - pcb_clearance_edge,
            pcb_clearance_edge + pcb_height, 0], [0, 90, 90]);

    /* Upper right corner */
    corner([pcb_clearance_edge + pcb_width,
            pcb_clearance_edge + pcb_height, 0], [90, 90, 90]);

    /* Lower right corner */
    corner([    pcb_clearance_edge + pcb_width,
            0 - pcb_clearance_edge, 0], [180, 90, 90]);

    /* Top edge */
    edge(2 * pcb_clearance_edge + pcb_width,
         [0 - pcb_clearance_edge,
              pcb_clearance_edge + pcb_height, 0],
         [0, 90, 0]);
         
    /* Right edge */
    edge(2 * pcb_clearance_edge + pcb_height,
         [    pcb_clearance_edge + pcb_width,
          0 - pcb_clearance_edge, 0],
         [270, 0, 0]);
         
    /* Bottom edge */
    edge(2 * pcb_clearance_edge + pcb_width,
         [0 - pcb_clearance_edge,
          0 - pcb_clearance_edge,
          0],
         [90, 180, 90]);
         
    /* Left edge */
    edge(2 * pcb_clearance_edge + pcb_width,
         [0 - pcb_clearance_edge,
          0 - pcb_clearance_edge, 0],
         [270, 90, 0]);

    linear_extrude(corner_radius*2)
    translate([0 - pcb_clearance_edge,
               0 - pcb_clearance_edge, 0])
    square([2 * pcb_clearance_edge + pcb_width,
            2 * pcb_clearance_edge + pcb_height],                     
            false);
}

keyboard_base_plate(pcb_width, pcb_height);