Also what would people recommend for a reliable brushed drum/beater set up, something that could later be upgraded to brushless, i'm not looking to make anything too spectacular just yet just something to make the robot that little bit more exciting and aggressive, i have a lack of any cad software/knowledge but would like to get something waterjet cut or milled, does anybody have any ideas on how i could go about getting something designed and of the potential cost? any help would be greatly appreciated