// Helpful to look into this pdf: https://www.raspberrypi.org/documentation/hardware/raspberrypi/mechanical/Raspberry-Pi-3B-V1.2-Mechanical.pdf

RPI_HOLE_DIST=49;
RPI_HOLE_SPACING=0.5;
RPI_HOLE_POS=6;
ZIPTIE_WIDTH=6;
ZIPTIE_HEIGHT=2;
HEIGHT=8;
THICKNESS=5;

translate([0, -THICKNESS, 0])
difference() {
    cube([RPI_HOLE_DIST + HEIGHT, THICKNESS, HEIGHT]);
    translate([HEIGHT/2-ZIPTIE_HEIGHT/2, 0, HEIGHT/2-ZIPTIE_WIDTH/2])
    cube([ZIPTIE_HEIGHT, HEIGHT, ZIPTIE_WIDTH]);
    translate([RPI_HOLE_DIST+HEIGHT/2-ZIPTIE_HEIGHT/2, 0, HEIGHT/2-ZIPTIE_WIDTH/2])
    cube([ZIPTIE_HEIGHT, HEIGHT, ZIPTIE_WIDTH]);
}

translate([(RPI_HOLE_DIST + HEIGHT)/2-16, 0, 0]) {
    difference() {
        cube([32, 32, HEIGHT]);
        translate([6, 6, 0])
        cube([21, 21, HEIGHT]);
    }

    translate([16.5, 16.5, 0])
    for(i = [0:90:270]) {
        rotate([0, 0, i])
        translate([-3, -1.5, 0])
        translate([0, 11, 0])
        cube([5.5, 3, HEIGHT]);
    }
}