I own some BIQU Thunder printers, and I don't really love the model cooling nozzle, so I made a better one, it's bigger and have blades inside for a better airflow.
Every times I buy a new Thunder, I directly replace this part now.
Print them in the stl file position, don't try to rotate them,
Add support only on buildplate and not inside, because ou will not able to remove them !
Please like if you download and think to post your made one I really want to see other people prints too :)
And one more thing to ask guys, If you really love my works, please feel free to like my page, it help me a LOT :