When selecting a nozzle in Bambu Studio, there is no selection for the CHT nozzle profile. Will Bambu be coming out with profile for this nozzle? Is there a Bambu written guide for using the nozzle? It is my understanding that the development of this nozzle was a partnered relationship. So I expect support from Bambu…
User expectations and Bambu should not be used in the same sentence 
Users’ expectations should be required to undergo a mandatory reality check before confronting those against Bambu support…and what Bambu staff understands by "customer support "
The e3d Obxidian hf nozzles (which use licensed CHT tech) are officially authorized by Bambu. They recommend simply upping the volumetric flow rate by 60%. I’d start with that, and then raise speeds to the point that you like.
All the information you’ll need is available on their site, I fitted mine a few weeks ago and I’m still in the process of filament calibration as I go before upping the flow ratio…
Thank you. I visited the link and read and watched. I was hoping that Bambu had done the work of optimizing the settings for the CHT nozzle. However, your point is that that can’t actually be done – reading between the lines. Would you say that any nozzle should be tuned to the filament being printed? Or, is the CHT nozzle more in need of individual tuning?
I have two Raise3D N2 printers. I calibrated each nozzle size to each filament type and sometimes even the color required its own calibration. Then I would make a change to the mechanics of the printer and had to do it all over again, and again, and again, and …
Thank you. This is exactly what I have been doing, but I’d like to see the material settings already profiled for the E3D CHT nozzle. It’s not any big deal really because once it is set for a particular filament, then, well, it’s done.
It is no deal at all once you think about it…
Bambu hotend - restrictive, low quality, bad results…
Quality HF hotend - free flow, fewer restrictions, no heat creep issues, higher quality results…
And all that without making any changes at all.
You will find that once you increase the flow rate almost all print speed values will increase past their set values.
Lines set to 200mm/s might show in the preview at 300 or more…
So the printer is known by Bambu to be far more capable than what their cheap hotends allow for
I use a max flow rate between 38 and 44 depending on the filament type.
And rather than messing with print settings for complex models I just crank down the max flow rate to slow it all down evenly.
I do have some dedicated profiles for high print speeds though but rarely use them.
Thanks for the input. I did not realize the printer could adjust to the hot end! Seems obvious no that you say it…
It might not be as obvious as it should be based on the Bambu defaults.
The only thing a hotend does it to melt plastic and putting it down.
Better quality means better results.
With Bambu using the max flow rate as a limiting factor it is very easy to calibrate a HF hotend.
Same as always, just with a much higher max flow rate 
Once you have it mounted you will find the rest easy!
I have been them (.6 and .4) using it for weeks, but the only setting I had tweaked was the volumetric flow rate. This turns out to be all I need to do for most situations.