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Every time I attempt to use a abrasion resistant hardened tool-steel nozzle I run into a huge number of problems... the heat transfer difference between Brass and steel is huge and I end up with really poor quality prints, clogging, etc.

Everyone says that a if you print glow-in-the-dark or wood fiber or carbon fiber that you will blow out your brass nozzle super quick... when I first ran into these problems I just switched back to brass and decided to throw out the nozzle and replace when it became a problem... the brass nozzles are so cheap I just did not see the point. This has served me well, but I was always printing fairly small parts. I'm about to dive into a RC plane project with some fairly large carbon fiber parts with multi-day print times and I am worried about wearing out the brass nozzle mid-print and I am wondering if I should revisit hardened tool-steel nozzles.

Every time I attempt to use a abrasion resistant hardened tool-steel nozzle I run into a huge number of problems... the heat transfer difference between Brass and steel is huge and I end up with really poor quality prints, clogging, etc. Everyone says that a if you print glow-in-the-dark or wood fiber or carbon fiber that you will blow out your brass nozzle super quick... when I first ran into these problems I just switched back to brass and decided to throw out the nozzle and replace when it became a problem... the brass nozzles are so cheap I just did not see the point. This has served me well, but I was always printing fairly small parts. I'm about to dive into a RC plane project with some fairly large carbon fiber parts with multi-day print times and I am worried about wearing out the brass nozzle mid-print and I am wondering if I should revisit hardened tool-steel nozzles.

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Yeah, I just wish there was a way to estimate how long I can push a brass nozzle before it wares out... up to now I have just been proactively swapping the nozzle after about 300g of filament but this project has a few 48+ hour prints and some of these carbon fiber filaments are really expensive... I am worried about getting 700g into it and then ruining the print and wasting a lot of money... and conversely I am worried about running a bunch of test prints with really expensive filament and wasting a bunch of money. My gut says to stick with the brass because despite the warnings I have never actually seen one show evidence of wear when I swap it out