This is an air scoop for a Traxxas Slash 4x4 LCG chassis with the J-concepts 2238 lexan overtray. The J-concepts overtray is great for keeping rock out of chassis, but starves the cooling fans for air. This air scoop lets some air in so fans have some air flow. Sandwiched a piece of window screen in between the scoop body and the inlet to keep rocks out, To install set the scoop on the overtray where you want it, too far forward will hit body mounts. There is a nice flat area at angle on front to place scoop. Drill hole through lexan on one corner. Use scoop bottom and drill rest of the holes keeping body centered and stright. I used a dremel tool with cutting bit and traced around the inside of bottom ring to cut overtray inlet. Use 4x3/8 sheet metal screws to mount scoop/bottom. For inlet ring I had some very small coutersunk head screws laying around.
Everything prints out the way it is without raft support. The scoop has different angles and prints some screw holes at an angle which is kind of cool. Used 10% fill for weight reduction.