$fn=200;

include </home/julien/.local/share/OpenSCAD/libraries/boltsos_0.4.1/BOLTS.scad>

// Calculate optimal rows and columns
n = 1;
rows = floor(sqrt(n));
cols = ceil(n/rows);

module knobs(size = 1) {
    difference() {
        union() {
            translate([-15,-15,0]) {
                linear_extrude(height = size)
                import("../svg/screw.svg");
            }
            translate([0,0,size]) {
                cylinder(5, d=size);
            }
        }
// M5 screw hole
        color("red", alpha=1) {
            union() {
                translate([0,0,5]) {
                    DIN931("M5");
                }
                translate([0,0,2.5]) {
                    DIN931("M5");
                }
                cylinder(20, d=5.5);
            }
        }
    }
}
// Create a 2D array of squares
for(i = [0:rows-1]) {
    for(j = [0:cols-1]) {
        translate([35*j,35*i,0]) {
            knobs(size = 10);
        }
    }
}