$fn = 40;

module graine(){
    difference(){
        scale([7, 3, 1])
            sphere();
        translate([0, 0, -1])
            cube([20, 20, 2], true);
    };
};

//Une graine
//graine();

//50 graines
for (j = [0 : 4]){
    for(i = [0 : 9]){
        translate([21*j, 7*i, 0])
            graine();
    };
};