Based on the original layer fan shroud used provided with the Rostock Max V2 this shroud is designed to attach to the side mounting holes on the E3D chimera hot end. There is enough clearance for a Dual Volcano, Cyclops, or dual V6 print head. This shroud will fit the original layer fan.Print with ABS due to its proximity to the hotend. Support required for the mounting holes to resolve. Printed with: Prototype Supply ABS 0.2mm Layer Height 4 Outside Perimeters 25% infill Simplify3D