About this 3D model

This is a fan mount for my Orca 0.3 x-axis linear bearing mod. ( http://www.thingiverse.com/thing:15418 ) It fits a 60mm fan, and should fit a 40mm fan, and blow cold air at the nozzle (cooling fan). I have found that my extruder struggles to reach 230 degrees now, so i'm thinking about designing a duct for this.