implicit-0.4.0.0: Examples/example24.escad

// example24.escad -- the variably twisted extruded product of the difference of 5 circles.
linear_extrude (height = 40, center=true, twist(h) = 35*cos(h*2*pi/60)) {
        difference (r = 8) {
                circle (10);
                translate ([22,0]) circle (10);
                translate ([0,22]) circle (10);
                translate ([-22,0]) circle (10);
                translate ([0,-22]) circle (10);
        }
}