// example7.escad -- A twisted rounded extrusion of the rounded union of 5 hexagonical solids.
linear_extrude (height = 40, center=true, twist=90, r=5){
        union ( r = 8) {
                circle (10,$fn=6);
                translate ([22,0]) circle (10,$fn=6);
                translate ([0,22]) circle (10,$fn=6);
                translate ([-22,0]) circle (10,$fn=6);
                translate ([0,-22]) circle (10,$fn=6);
        }
}