Need help tuning BAMBU PETG CF
No amount of copilot and chatgpt is helping me tuning this filament in the core one. 🙂
I have a fully developed profiled, 9 volumetric speed and retraction settings all good.
First layer seems to go down well (print speed low? just the regular 45), after that, everything is a dumpster fire. Seems like under extrusion, poor layer adhesion, everything tha can go wrong it is going wrong including huge nozzle blobbing. I have all retractions settings tuned up I think but I cant figure out what the issue is. I stop all the prints on the 2nd layer as it is futile to continue.
this filament has always been a pain in the butt even in my A1, but it does print relatively well there minus the nozzle blobbing issue that this filament is known for.
Filament is dry, 2 days now and running it from the dryer. No change.
Have about 5 rolls of this filament that I would like to burn through so I can never buy it again lol
Please if you could share your settings for the core one. I am hoping that turtle speed isnt the solution to this issue, but it might be?
RE:
I don't have much experience with that or any CF filament, but what nozzle are you using?
If you're using the standard Core One nozzle, stop immediately and hope that you didn't destroy it for good. Even a few minutes can file down standard brass nozzles.
Apart from that, assuming you're using a 0.4 mm hardened nozzle:
CF pieces are known to clog up even non-high-flow 0.4 mm nozzles and a normal 0.6 mm nozzle is recommended (hardened of course).
Depending on the length of the CF pieces, a high flow 0.6 mm nozzle might work well or even a high flow 0.4 mm nozzle.
Slower works better, since the pieces have more time to flow "into position" without jamming the nozzle. And since CF isn't melting at PETG printing temperatures, increasing the temperature won't necessarily help at all.
Btw, I can recommend the Phaetus 0.6 SiC nozzle. I'm using it for generic filaments and the quality is as good as I can judge. According to Phaetus, the insert is extremely hard, since it's silicon-carbide. I didn't test CF filaments though, so it might be marketing BS. At 15-25 €, depending on the shop and your address, it's not much of a loss if it won't hold up to its promises.
RE: Need help tuning BAMBU PETG CF
thanks it is 0.4 hardened.
It is not an issue with the nozzle. I am looking for print settings 🙂
thanks it is 0.4 hardened.
Go to 0.6mm or even 0.8mm hardened.
It is not an issue with the nozzle. I am looking for print settings 🙂
It should be fine with generic PETG settings, perhaps slow it down slightly.
Cheerio,
RE: Need help tuning BAMBU PETG CF
ugh this worked beautifully. I do not know why I insisted in modified the prusament petgcf profile to make it work and it was literally a disaster.
I tried the generic petgprofile and even though I can tell it will need a little bit of tuning, everything is working and now I am printing. Sometimes you just need a little nudge.
thanks!