use <BOSL/shapes.scad>
include <BOSL/constants.scad>

module cubi(s, fillet=0, edges=EDGES_ALL) {
    if ($preview) {
        cube(s, center=true);
    } else {
        cuboid(s, fillet=fillet, edges=edges);
    }
}

module screwhole(d, h, head=true) {
    $fn=$preview ? 5 : 20;
    translate([0, 0, h]) cylinder(d=d*1.5, h=d*0.5);
    split=h*0.5;
    translate([0, 0, split]) cylinder(d=d, h=(h-split));
    cylinder(d2=d, d1=d*0.1, h=split);
    cylinder(d2=d*0.6, d1=d*0.6, h=split/2);
}

function vec_sum(v, w) = [v.x + w.x, v.y + w.y, v.z + w.z];