In response to a few requests, here is a design rules (DRC) file (OSHPark.zip) I created when ordering boards from OSH Park. To load them unzip the file and in Layout program, select Route- Load Rules. Note that the numbers are based on a somewhat limited information available. (For example I do not have data on the maximum hole size) The settings are as follows:
Minimum trace, drill size and annular ring
Just a standard 6/6 with 15 mils from the board edges
