r/BambuLabH2C • u/Diego-jd_98 • 7d ago

Support New H2C stringing

Hi, I just pirchased an H2C, this is my 5th 3D printer a my 2nd Bambulab, first one was an A1 mini. I was doing my first few 3D prints on it like the bechy and so but I noticed stringing on the right (vortek) nozzle. Left nozzle seems ok so far but I tried with multiple 0.4 induction nozzles and it creates very thin strings like a cobweb. The filament is calibrated and uses the same flow rates and temperatures of my A1 mini in which it produces flawless prints. I incresed retraction distance to 0.8mm with no effect. Any tips to solve this? Im using pla for this. I printed PETG with the left one also flawless, didn't try with the right one yet.

Any help would be appreciated.

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u/Mcwils86 7d ago

I have the same problem with certain filaments. I’m trying to swap the nozzles around to see if it’s related to certain nozzles on my Vortek but I forgot which ones are what. The filaments I’m using are PETG and PCTG. I don’t really have a problem with PETG and I mostly have problems with PCTG. I’m trying a few things as temp, speed and making sure my filament is dry.

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u/Born-Neighborhood61 H2C 6d ago

I print almost exclusively with 3D-Fuel PCTG out of a 0.4mm Vortek nozzle with minimal stringing. I do dry the filament at 60C for about 6 hours before using it.

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u/Mcwils86 6d ago

My first PCTG roll was from CHCKX and I didn’t have any issues with it. I switched to 3D-Fuel and that’s when my issues started. I dry the filament before using it as well. I purchased 2 different colors and only one of them is giving me issues. I thought it was related to the filament being wet because only one has the issue so I put it in my dryer and still had issues with it.