On the right side of the Lian Li 011 XL, there is a spot for 3x 120mm fans. After initially assembling, I noticed that all of the wires ran through this location and blocked a lot of airflow. I created this fan duct to almost make contact with the right side panel, allowing for the wires to route around the duct and for airflow to be uninhibited. Note: it does not make contact with the side panel but it is very, very close. I did not do a before an after on temps inside the case as I did this while I was building it.
I used screws that came with the case. Nothing special. STEP file included if anyone would like to make changes.
Recommended print settings:
EDIT 12/28/2022: Just realized that this wasn't an original idea and have changed the post as such. I posted two designs that I probably had inspiration from. I originally designed this 01/21.
The author remixed this model.