I too do not have a 3D printer Marco -they are too expensive yet for owning them easily- but it is not so expensive to order the print of small items. My interest, those days, is in the field of jewellery and I do wonder if the lack of so fine 'zebra' flows could produce defects in the case of jewellery item prototypes. Thanks for your answers however. And, really, it would be good to hear other opinions too regarding those matters. : - )