This model was designed to guide the PSU (Power Supply Unit) cooling air away from the HBP (Heated Build Platform). The design was modified from thing 53876 for easier printing and strength. This model is used in the Artifex 3D Printer (http://www.3dmakerworld.com/artifex), and can be used in many 12V/24V PSU models as well. Installation instruction is provided in the Artifex Build Instruction: http://www.3dmakerworld.com/support/documents. The model was designed in Alibre (now Geomagic), and the source files can be found here: https://github.com/3dmakerworld/artifex.