About this 3D model

Here are two recursive snowflakes, one composed entirely of hexagons, the second of hypocycloids. The openSCAD code that produced them was supplied to me by D J Moews who kindly allowed me to post it here under the attribution creative commons license. Both snowflakes have hexagonal symmetry; the hypocycloids having 6 cusps. The two snowflakes are similar but the one composed of hypocycloids is slightly more open. However it takes much longer to calculate.