Hello Everyone,
I have a K2 Plus Combo with about 350 hours on it. It had about 100 problem free hours and, when it works, out performs all of my many Bambu printers. Lately I have been having constant extruder and feed errors. Most of the time, when I open the extruder, the filament is just sitting at the top and not stuck, but periodically it is stuck, damaged, and wrapped around one of the wheels.
Sometimes I get 6 or 7 hours into a print before a failure and other times I don’t even get through a single layer. No other errors accompany the FO0528 unless something else happens, they are usually related to the CFS
Troubleshooting so far:
Replaced entire extruder with a brand new Creality one
I replaced the spring in the extruder after an unfortunate mishap where the original one went flying. I later found the original spring so I have both to mess around with, the error occurs with either spring.
Cut a single loop off of the CFS spring that is known to cause issues, no change
Tried different filaments and brands including Creality Hyper PLA
Updated Creality Print to most current 6.1.1xx version
Checked for Firmware updates
Factory reset printer
auto calibrated multiple times
I reached out to Creality via WhatsApp but haven’t heard back in over 24 hours.
The same thing happens to me, I have 2 k2 plus and the same thing happens with both of them, I think it’s an issue with the bed that deforms a lot at different temperatures or with the z offset… I also have two bambu lab x1c and I’ve never, never, never had a problem… I’m thinking of selling my 2 k2 plus and buying 1 hd2…
My bed mesh is pretty stable across the temperatures, I have it down to 0.5xxmm variance which is improved from the 0.8 it was at from the factory. I’m considering buying a graphite bed to eliminate that problem, but it printed fine for a long time so I’m hesitant to think that’s a the sole problem.
For what it’s worth, I have 4 P1S, and H2D and another H2D on the way. The H2D is nice, but not without it’s issues as well. Bambu is way behind the ball on support for it and a bunch of the presets are still unavailable, especially for the HF nozzles. I have an item I sell that it works really well for, but if I wasn’t selling a item that is primarily two colors, it wouldn’t be worth the money unless you absolutely need the build volume. For my item, I save 14 hours and about 500g of filament per item so it’s more than worth it. It would be really nice if it would print without the prime tower, it is required for quality prints.
Bambu is also downgrading firmware on it because of some errors causing the print head to collide with the sides causing irreparable damage to the head.
Feel free to message me if you want to discuss the H2D, this is a Creality forum and the H2D is way of topic for my issue so I don’t want to highjack the thread.