The Hobbyking Rattler is a great buggy but suffers from ESC over heating due to the lack of air flow (and the small ESC used in the car). The radio box on the car isn't air tight or water proof so I thought I'd make a cold air intake to get some air flowing over the ESC. Print both parts solid, the duct has to be printed with support but it's a very small amount. Glue the duct onto the new radio box lid and your good to go. The new lid will sit a little proud of the car radio box but this is beacuse the new lid was a little weak printed thinner. I'll post photos shortly.