Hi everyone!
This may be a silly question, but is there any difference between the standard nozzles, hardened nozzles and tungsten carbide? I own a hardened HF.4 and I don’t know if the tungsten carbide ones are worth it. Does anyone who owns both notice any differences?
Do you print filled materials like CF?
Not very regularly, maybe once every 3 months
To me, as a beginner, Bambu Nozzles are worth it. Can’t speak for TC ones. I’ve only tried the 0.2mm in Stainless Steel, and the 0.4mm hardened. Oh, and I do have a 0.6mm I don’t use, but wanted to try it.
But they are genuine BL. So I feel confident they will work (and have).
One exception is a A1 nozzle in 0.6mm I ordered by mistake. I kept it as a reminder to pay attention to my orders. Dumbkoff that I can be at times. 
The TC may be good for other abrasive filaments like glow, too. But I donno.
The only thing you should notice going to a WC nozzle is you DON’T notice anything - the nozzle lasts and remains consistent for a very long time.
If you print glow filament or fiber filled filaments frequently, there’s a case to be made for WC nozzles. If you don’t, that case isn’t as compelling.
That looks to be in very good shape - as long as you’re not seeing print issues, I wouldn’t replace it.
I might try cleaning it with some of my finer grit papers like 2000 grit or finer. The orifice is what is critical. Don’t open up the hole.
That looks like a nozzle in perfect condition. What looks like a little roughness at the ege of the hole looks to me to be nothing more than some plastic, which will get removed the next time you use it.
You might, I wouldn’t. 2000 grit is far too course and would dimensionally change the orifice. If, that is, you could actually get it in there. If you feel the need to use abrasive material on a precision hole then it’s time to buy a new nozzle.
Nowhere and in no way did I elude to sanding the inside of the orifice.
I would very lightly clean it across the face of the orifice. It is showing some grunge.
Sanding or digging around within the orifice would be a terrible idea.
I could have suggested 12,000 grit, but that was what I used to finish polish the wooden pens I used to make.
I’m still a Bambu Parts for Bambu equipment guy.
I would not use any sandpaper at all on any part of the nozzle. I’m not sure, but I would expect the nozzle to be coated or surface treated and anything harder than the nozzle could destroy it.
For removing grit, I use softer metal like a brass brush. I think BambuLab even advice against brass.They recently released a cleaning sponge, similar to the sponges used for cleaning soldering irons. Maybe that is a good way?
