Go to the solidworks tutorial, that comes with the program. It refers to a very similar subject. It lays out a set of pulleys with a representation of a belt between them. It claims that once the layout is setup, you can insert the components and it will hold their relations.<br><br> <p>Edson Campos<br><a href=mailto:edsoncampos@earthlink.net>edsoncampos@earthlink.net</a><br><a href= > </a><br>