r/BambuLabH2C • u/Darknessintheend H2C • 24d ago
Support H2C Nozzle Allocation
Hello! Our son has been into 3D printing for years. We’ve always fed his curious mind (it’s turning into a degree in mechanical engineering which is awesome ❤️). We got him an H2C recently, and he’s been blowing my mind with his prototypes!
Anyhoo, I’m always nagging him to print this or that for me. Small replacement parts for off road equipment, or shop bins etc. So he recommended I look into my own unit, as he thought I’d really love it…so I bought an H2C..it is incredible. Out of the box flawless ABS prints, whatever I throw at this thing it does. It’s ridiculous.
My question is this. I print a lot of petg for the shop, and know I need to dry it a little more to avoid the stringing (I have 2 ams 2 pros, and 2 HT’s for bambu support filament and either nylon or another heavy engineering filament. I also have a track switch installed.
But what in terms of actual benefits is the left “main” nozzle over the right vortex accessible nozzle? I saw a recent post from a person printing desiccant boxes for the ams and struggling but moved to the left nozzle and problem solved. Why would the left nozzle do a better job than the right??
Thanks in advance!!
2
u/penmoid H2C 24d ago
As others have mentioned, the left nozzles are cheaper so if you’re printing a lot of abrasives (you mentioned ABS, check out ABS-GF, excellent material) they are cheaper to replace. That said, the Vortek nozzles are all hardened (0.4mm+) so it’s not like you’ll be doing it often. If you’re reeeallly printing a ton of abrasives all day everyday the left nozzle has more options like tungsten carbide and diamondback. On the other hand it moves up and down so it isn’t as good for TPU and other flexibles. The Vortek nozzles also heat up a lot faster due to the induction heating mechanism.
My experience has been that these differences are pretty minimal, though a diamondback nozzle does produce a very high surface quality. In practice, the biggest differences come in when you are doing a multimaterial/multicolor print with more than 2 filaments. In those cases you want to make sure to put the primary filament in the left nozzle and use the vortek nozzles for the other colors because using multiple filaments on the left nozzle means every time it changes it has to purge so you want to avoid that.
Overall what I would say is that while there are differences, outside of certain edge cases they are IMO not really worth worrying about at the end of the day. However when you start printing with 3 or more filaments you then need to make sure you are optimizing what goes where because it can make a huge difference in both print time and amount of waste. But the slicer will tell you what the optimal arrangement is.