CPU cooler heat duct

This is an exhaust duct to direct hot air from a PC CPU heatsink out a fan grill on the back of the case. It is intended to reduce hot air from the CPU cooler circulating around other components in the in the PC case (like the GPU) while also replacing one exhaust fan.

This is designed for my NZXT H210 case and Noctua NH-U12s cooler but the model in OpenSCAD is designed so you can tweak the variables to suit your PC setup or to make it shorter to keep the case fan.

Even though I am mounting this in place of a 120mm fan, I have used a rounded square shape at the fan grill (case) end to get more airflow than just the circular opening of a 120mm fan. I had space to make the case end a bit bigger than a 120mm fan but you may need to adjust this back to 120mm by 120mm.

I will upload the SCAD file but am open to request for change or improvement.