Wire rack fastener

wire-rack-fastener.scad

$fn = 100;

// dimension: mm
wire_dia = 1.5;
screw_head_dia = 9.0;
screw_hole_dia = 4.0;
head_width = 25;
head_height = 25;
fillet = 2;


rotate([180, 0, 0])
difference() {
    base();
    screw_head();
    translate([(screw_hole_dia+wire_dia)/2, 0])
    wire();
    rotate([0,0,90])
    translate([(screw_hole_dia+wire_dia)/2, 0])
    wire();
}
    
module base() {
    linear_extrude(wire_dia * 2) {
        difference() {
            offset(r = +fillet) offset(r = -fillet)
            square([head_width, head_height], center = true);
            circle(d = screw_hole_dia);
        }
    }
}

module screw_head() {
    linear_extrude(1) {
        circle(d = screw_head_dia);
    }
}

module wire() {
    translate([0,0, wire_dia * 7 / 4])
    rotate([90,0,0])
    linear_extrude(10000, center = true)
    circle(d = wire_dia);
}