This is a modified fan mount for the Hemera Cooling Duct by Hangtight https://www.thingiverse.com/thing:4042492.

I noticed my prints were curling up and just having bad prints especially with petg. The culprit was the fan mount and shroud directing airflow from the heatsink to the right and down. This explained why I would see the most glaring issues on the right side of every print.

This mod is to block the airflow from moving right.

In the Before photo, you will see the curling and just bad print layers as I was printing the modified fan mount (green) with the original fan mount (blue) still installed.

In the After photo, you will see the modified fan mount that was printed (badly) is installed and printing another modified fan mount (blue again) with the color I prefer to replace the badly printed one (green). Same PETG settings.

I also modified the mount to use m3 inserts with m3 screws as I had these in the correct length.

Update - Added a version with the original M4 holes.

Category: 3D Printer Accessories