I have a 0.25mm revo nozzle.
Where do I specify that in bambu slicer??
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Bambu Studio seems to restrict the nozzle size, itâs greyed out on my computer.
OrcaSlicer lets you change the nozzle in the Extruder settings.
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Yeah, I already tried with OrcaSlicer:
But when actually kicking off the print, I get this dialog:
So it looks like somewhere my 0.25mm nozzle setting in the printers extruder settings is being ignored and a 0.2mm is used instead (I based my profile on the 0.2mm bambu profile). So during the print (after pressing confirm) not enough filement is being pushed throughâŚ
Did you try âConfirm and updateâ?
Yes, nothing happens.
The dialog stays presented and does not dismiss.
Click on the printer drop-down arrow then select âCreate Printerâ.
You get the following. Under âCreate Typeâ, select âCreate Nozzle for Existing Printerâ.
The screen will change to the nozzle selection options.
Use the drop-down menu next to âNozzle Diameterâ.
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Wow, this âCreate Nozzle for Existing Printerâ thing looked soo promising.
Unfortunately, no printer shows up when trying to select a printer in the pull down.
Well, you do have to have a printer. What are you using now? Have you read any of Bambu Wiki instructions for your printer? 
Try this: At the top left, Click on the Printer options symbol. Then select a printer.
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These are my printers that do not show up in the âCreate Nozzle for Existing Printerâ pulldown menu in my Bambu Studio app. (And also not in OrcaSlicer)⌠
Edit: I was able to create a complete new printer hoping I could spec a new 0.25mm Bambu Lab P1S⌠But that has loads of configuration to do, I couldnât even get that connected to the actual printer. BUT that printer that I created DID show up in the âCreate Nozzle for Existing Printerâ pulldown menu. But none of the default Bambu Lab printers form my screenshot showed upâŚ
They wonât appear. You make the selection from the screen you show. If youâre not changing one of the stock presets, then you must create a new printer with its configuration. Make a choice.
I also noticed your using the Apple/Mac version. Iâm not familiar with that.
There is an open issue for the âConfirm and updateâ dialog on Github:
https://wiki.bambulab.com/en/software/bambu-studio/3rd-party-printer-profile
More input there from other users may be helpful.
I think there is another issue in that the Create Nozzle choice requires selecting an Existing Printer, but the Printer dropdown does not populate, so no choice is available.
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Yeah, Iâm pretty much winging it myself. I noticed this in the How to Create Custom Presets.
âSystem presets cannot be modified directly. However, you can make copies of system presets, modify any settings you like, and save the result as a user preset.â
The new printer will be in User Presets.
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And then Iâm back to:
Iâm going to see if thereâs something I can do something with the json files stored in â~/Library/Application Support/BambuStudioâ or â~/Library/Application Support/OrcaSlicerâ
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ouweRammer, did you ever resolve the issue? I too have the 0.25 DB nozzle for my X1C.
No, wasnât able to figure it out. I guess it can be done with the config files, but gave up after a couple of days.
Iâm trying to use a Diamondback 0.25mm nozzle via the âChimeraâ hotend and have run into this same problem.
At the moment, Iâve configured the printer as though it has a (steel) 0.2mm nozzle but have increased all the line-widths by 0.05mm and hoping that the âFlow Dynamics Calibrationâ will handle the difference.
So far, the results have been acceptable. The âflowâ lines arenât perfectly smooth meaning that the flow probably isnât as balanced as it should be. Not sure what to try next, though.
The other problem Iâve been having is that those lines are solidly stuck to the textured PEI plate that Iâm using whereas I never had the problem with the stock 0.4mm nozzle.
I had the same problem with the Revo 0.25mm and found a way that seems to work.
On the X1C
- set the nozzle to 0.2mm
In Orca slicer (v2.1.1)
- Create a copy of the 0.2mm printer profile
- Change the nozzle diameter to 0.25mm and save it
- Slice the project and Send (not print!) to the printer
- Go to the Device - MicroSD - Model tab, select the model you just uploaded, and click Print.
- This will not show the error about the nozzle discrepancy and the print starts
I hope this works for you too.
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Also got the Panda Revo 0,25 Nozzle and running in the exact same problem. The idea with sending it to the printer and the print from there is not working for me. Printer shows same fault on its screen. Is there any way to print with a 0.25 nozzle?
I had ran a .25mm nozzle for a while (aftermarket M6 hotend/clone).
I set the printer to the .2mm setting: so it believed it was a standard size nozzle (which I believe is a necessary step for purge volume and PID tuning).
After that, I selected .2mm in the slicer, but adjusted my line widths to be proportionally scaled up.
To the best of my recollection, it worked well and without issue.
Youâd think Revo would just make a 0.2mm nozzle right? Especially given the fact they have hotends for the BL printers. I was tempted to get the BIQU Pando Revo but I donât think Iâll bother now I know Revo donât do a 0.2mm nozzle. Guess Iâll have to go for a Mako then, only trouble is they arenât tool-less swaps 
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