Which nozzle for what?
In the forum threads about what accessories to purchase, many people mention hardened nozzles for the abrasive filaments. But there are high flow and standard flow variants. Clearly, both are hardened nozzles, which implies usage for abrasive filaments. But which one do you use for what? And if you have the high flow, can you still print standard flow with it, or is the high flow something about internal volume/diameter?
We have available to us:
Prusa Obxidian HF: 0.4, 0.6
and standard, NOT high flow:
Prusa Obxidian: 0.4 and 0.6
Thanks for your guidance/mentoring/teaching.
Neal
RE: Which nozzle for what?
I use the oxidian 0,4 hardened for everything nowdays, i dont bother swapping back since it can print really fast with that aswell, the HF profiles are almost the same print time most of the time when i checked. I used the non HF version sine i read about some having issues with some materials that had lots of fibres, and core materials will not work properly with the HF nozzle, the HF have a more complex internal geometry.
RE:
I bought the Obxidian HF and am pretty happy with it. I use it for everything. It doesn't flow quite as well as the stock brass HF nozzle, but is close enough it hasn't changed how I print.
As Cedric said, some materials will take a bit of extra thought. I just printed with a new spool of wood fiber PLA and it eventually jammed -- but that was mostly my fault for not tweaking something ahead of time. But PC-CF prints fine, as does PLA-CF.
RE: Which nozzle for what?
Exactly the same here......
I use the oxidian 0,4 hardened for everything nowdays, i dont bother swapping back since it can print really fast with that aswell, the HF profiles are almost the same print time most of the time when i checked. I used the non HF version sine i read about some having issues with some materials that had lots of fibres, and core materials will not work properly with the HF nozzle, the HF have a more complex internal geometry.
RE: Which nozzle for what?
Same here. Obxidian regular flow on all my printers.
I have zero interest in large objects such as cosplay helmets, print times with HF seem identical to regular nozzles for what I print, and when I got my first Core One with a HF nozzle I had a bunch of issues, so regular Obxidian it is.
I print a fair bit of PCCF and PETGCF so a hardened nozzle it is, and I've never seen issues with other materials.
Formerly known on this forum as @fuchsr -- https://foxrun3d.com/
RE: Which nozzle for what?
I found the limits for the 0,4 stainless steel obxidian, but that was while running a large part at 0,2 "fast" profile + cranked the speed setting to 175%, at 150% it I still couldnt see a difference, so i think it flows enough for most use for sure.
RE: Which nozzle for what?
I have Obxidian HF 0.4, 0.6 and DiamondBack 0.4,0.6,0.8
I won't push wood, TPU or PLA though a HF nozzle. If a clog happens it's a PITA to unclog. HF does make a difference in time for PETG and ASA but I find myself mostly just using the Diamondback for everything.