I'm sorry Wolf I was aware of the "paraphernalia" law but I did not know that talking about the makeup of such a machine in general could get someone in trouble. It is perfectly legal in my country and we have almost 5 months of monsoons when exercising the dogs can be a problem. Actually I already have begun working on one and was trying to figure out what the running surface below the carpet is made of,runners or a smooth surface.A slatmill would have been easy but i do not want my dogs or myself to go deaf ;-) Xamen13 I have seen that site, the other company that has a site for carpetmills is the Colby carpetmills. Unfortunately neither of them show the mills in detail ;-) Regards, Yaj.