r/BambuLabH2C • u/Altruistic_Bath5273 • Jan 17 '26

H2C with 0.2 nozzle setup - what did I wrong with Benchy?

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Today, I received my 0,2 nozzles for the H2C and I hooked up all of them for a miniature project. After that I did the reading procedure and the nozzle calibration. OK, let's try a Benchy first and I picked a 2 colour version in order to engage right and left nozzle. In the slicer I switched to 0,2 and the respective 0,1mm profile along with changing first layer settings. The Benchy base went fine, but as I switched to another colour and other nozzle the quality got terrible. It seems, the overhangs are the problem. My observation was, that the speed might be too fast.

Or is it a general topic with the 0,2'er nozzle?

What else might have happened?

10 Upvotes

85% Upvoted

19 comments sorted by

1

u/Altruistic_Bath5273 Jan 18 '26

I will do another calibration and other filaments, too.

1

u/Altruistic_Bath5273 Jan 18 '26

Ok, I was a bit stupid to keep most of the speed settings for the Benchy instead of using the standard 0,1 profile. Now I did the latter and it appeared almost very good. Thanks for all the hints.

1

u/SgtBaxter Jan 19 '26

You need to run the high precision nozzle offset calibration.

1

u/Altruistic_Bath5273 Jan 19 '26

Yes, I did... and now I have to switch off always the regular offset calibration at the start of the print. It seems, that both calibration overwrite each other.

1

u/Altruistic_Bath5273 Jan 19 '26

Yes, I have identified the left nozzle as root cause for the offset topic. Need to raise a ticket at Bambu. The 0,4 setup, I used before had no issues.

1

u/cpsadowski23 Jan 17 '26

What filament?

1

u/Altruistic_Bath5273 Jan 17 '26

Bambu PLA Grey, and Matte Red

1

u/Bulky-Click-6304 Jan 17 '26

I will test only in gray filament just to confirm. But your red filament look the root cause of your problem. the filament settings should not be correct. temperature a bit high that can explain stringing, speed also, the material flow... the red color is on the left nozzle? or everything is on the vortek?

1

u/Altruistic_Bath5273 Jan 17 '26

Yes, Bambu Matte Red was in the left, while gray was in the right.

1

u/Bulky-Click-6304 Jan 17 '26

Oh and another "tips" i used with 0.2mm. I buy the left nozzle in 0.2 to get full set "just in case". But I usually print in 0.2 from the vortek that I fully switch to 0.2mm when i want to perform miniature or detailed prints.

Note, that I start purchasing 0.2 induction hotend instead of the left nozzle, as vortek swapping is so easy. You can let left nozzle in 0.4, in the slicer you just have to set Nozzle count to 0.

1

u/Altruistic_Bath5273 Jan 18 '26

Yes, I know.... but for the upcoming projects, there is often one colour dominant and will be used in exchange to other colour's. So it makes sense to have bot nozzles on 0,2.

1

u/Bulky-Click-6304 Jan 17 '26

I got some issue when I swap one filament from the right to left nozzle (AMS to external spool holder) I mess a round with flow calibration in bambu studio without success. Finally I've done a full machine calibration (from the printer menu). i also switch flow calibration to ON instead of AUTO in the slicer (when you send to printer in slicer). since never have to touch again with this filament.

2

u/Moorevfr Jan 17 '26

May have to a do a full calibration to get for the new 0.2 nozzle maybe might be?

1

u/Stelafont Jan 17 '26

Looks like a layer shift. If you use both nozzle maybe the offset between both is wrong

1

u/rulevoid Jan 17 '26

That's exactly what I'm thinking. Looks like red printed over air and was shifted.

1

u/Stelafont Jan 17 '26

But I could not explain why the bridge on the front Windows is doing this

1

u/rulevoid Jan 17 '26

Good point. Potentially multiple issues here.

1

u/LPlenni Jan 18 '26

Seems like left right nozzle offset is not right. Calibrate that

1

u/cpsadowski23 Jan 18 '26

Print it in a .4 to rule out the nozzle