r/Creality_k2

So I’m running into continuous issues when printing this new PPA-CF material and can’t find much information on this. I’m printing at 60 mm/s at 300 degrees Celsius on a new 0.6 mm nozzle. I’ve set the z hop to 0.8 mm and retraction to 0.8 mm aswell. Other than those changes I’m using the hyper PPA-CF preset. The prints fail halfway each time. I’ve gotten one successful print at the very beginning but the sides came out scratchy. Since then another issue is the nozzle bridges gaps between edges and doesn’t appear to retract when needed, this results in the prints needing to be trimmed and the tree supports being fused to the print itself. I’m using a thin layer of Elmer’s glue and a textured build plate, I don’t have access to a filament dryer and would really appreciate any help or advice. The clogs don’t happen in the extruder they happen in the nozzle, when I try to push filament through the top of the nozzle it seems to be jammed up very tight. The most recent test i did the nozzle got so jammed I had to stop because I am unable to get it out. I’ve ordered a new set of nozzles that should arrive tomorrow but am wondering if any settings should be changed aswell. Thanks for the help!!

I'm running 4 k2plus printers for my business, usually with no issues other than user created. Recently I have been getting a lot of errors related to extractor anomalies, z-axis homing, printer printing without extruding, and others. If it was only one of my printers, I wouldn't be as concerned and probably wouldn't started chasing demons, but all four with the same issues, seems more like a firmware concerns. Anyone else experiencing similar? Do you have a path forward?

Edit: Firmware I'm running is 1.1.6.1 on all of my printers

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https://preview.redd.it/59siim7ajakh1.jpg?width=1080&format=pjpg&auto=webp&s=f65adf3cdbc65562b8a6840875cb70e758d4d748

Hi everyone!
I have a K2 printer, and I'm loving it a LOT! Except for when my supports fail...

Since a month or so, I notice my supports are failing, causing bigger prints to fail regularly when I use the tree-type supports, either the standard one or hybrid.

I think the supports are getting knocked over, or blown away, but I tried adjusting those settings and it doesn't result in any changes. It often happens above 8cm (~3,5 inches), but also happens lower in the print sometimes.
I come back to a print that's full of loose filament strings (spaghetti), often dragged into the main object, and a huge mess of tiny bits of filament on the print plate and on the bottom of the printer. I also often find pieces of tree support amongst them.

Things I tried:

- Cleaning the print plate with soap, then alcohol, then add adhesive to ensure the supports stick
well.
- Turning off AI settings for supports
- Adjusting Z-hop to a higher level
- Turning down the fans
- Replacing nozzle
- Checked the Z-axis sensor under the bottom plate

Does anyone know what I can do to prevent this? Should I use normal supports instead? (these often leave marks on my prints and are a pain to remove)

All tips are welcome! I've been printing for around 2-3 months, so I'm by no means an experienced user.

I recently bought the DXC2 Extruder because I really liked how quickly I could access the extruder's internals, and because I'd heard great things about its quality. Of course, during my research, I saw people were having various issues, and to be honest, I expected them. It's a modification, and with that comes compatibility challenges. What I didn't expect was spending a full 2 weeks trying to resolve the DXC2 not cutting or retracting the Filament when loading, unloading, and during CFS Filament swaps. Other than that, it works amazingly, just not the way I need it to lol

As a starter note, I have reached out to Phaetus and been in communication with them for about 4 days now. Their support is super responsive, and they have been really trying to help me, so I am grateful. In addition, when I bought the DXC2, I also upgraded my hot end to a MicroSwiss FlowTech CM2 - .4 Nozzle and did the proper calibrations and print setting changes, so I cannot see why this would be causing my problems since it did the same thing with the stock hot end my K2 came with!

All 4 of my CFS slots have issues retracting filament during color swaps and throw error code FR2865: Feed Issue, Filament Failed to exit Extruder. At this point, it forces me to retry the retraction process/ Cutting for it to finally work (it always exits and retracts on the second try). This sent me down a spiral of changes and checks to my CFS PTFE feed tubes, gear system, cutter, literally everything.

In addition, I:

1. Added 1 mm extension to cutter probe

2. Played with my Cutter pos/ offset values, as well as adding a pause during the cutting process

3. Retraction speed & Distance

4. Extrusion Temp/ Velocity

Plus many more backend tweaks....

All of these yielded nothing but more failures and, in some cases, other issues, so I stopped messing with them and did a full reset of my printer to factory settings, only changing the required DXC2 Values in Fluidd.

Tomorrow I plan to flip the magnet on the DXC2 backplate and swap the DXC2 Filament cutter for the Stock Creality one as my last go at it before I wait to see what support says now, or I just go back to stock.

If anyone out there has any tips, tricks, or advice, I would be happy to share more information and try anything to get this extruder working... There has to be something out there that can fix this!

Thanks in advance to anyone who can chime in!

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Long story short, I was getting repeating "FR0122: Spool holder filament in use. To print with CFS, unload spool holder filament and reload CFS/CFS Lite filament before printing." errors.

I disassembled the extruder (multiple times), and got to a point where I was trying to reproduce the error with the filment break sensor unplugged. I simply put the front on, and told it to print knowing I would need to take the whole thing apart (AGAIN!) to plug it back in.

Well, the print head moved back to the poop shoot area and the front of the extruder came off, spring flew out of the pressure lever, gear flew out, and this thing.

I have been looking at the entire hot end and I don't think it goes there. There's not an axis that is empty around the poop shoot, the motion is moving OK by hand so I don't think it from the motion system.

So anyone know where this arm and bearing came from?

Hi,

Just wanted to share something I noticed after updating my K2 Plus to the latest firmware.

Right after the update, I noticed this:

https://preview.redd.it/kg1gxzxzz4kh1.png?width=1369&format=png&auto=webp&s=6944efd6ba78b442399329b8bc49b646653b1fd3

https://preview.redd.it/sdxrbp8705kh1.png?width=1536&format=png&auto=webp&s=78bc0de753231a1ca98e48ae8ee79c14e112b262

Cheers,

Xander

I am going to be trying to print PPS-CF and other brittle materials. I have seen things about not running it in CFS and such and trying to get an idea on how I should go about printing it. I already installed a .6mm nozzle now just looking for any ideas on how to actually get it to the extruder without using the CFS and no hard bends. Anything I can print? Also any profile suggestions for PPS-CF while I’m here?

K2pro. Out of no where printer won't start printing. It starts the calibration and stalls out and does nothing. One time it touched the bed and didn't go further. Or it will lower the bed all the way down and stop. Disabling the calibration allows it to start printing.

I've been avoiding updating because last time I did it was crashing the print head into the stops. I've updated it now and it didn't solve the calibration issue.

Any help would re appreciated

Printer has been working great for 8 months without issues.

I keep getting several errors about blockages. It started with the error in the title. I tried several things. I am printing with hyper petg.

Different spools

Different slots of cfs hub

Cutting new end of filament

Unhooked and inspected all tubing

Unhooked and checked buffer

Replaced extruder

Check gears of new extruder and blow it out

Replaced nozzle

Replaced nozzle again after it clogged

Replaced hotend

Unplugging entire printer for a minute(several times)

I am genuinely at a loss of what to do now.

Between these attempted fixes, the first error would go away but then I'd get others, such as a the clogged nozzle, and extruder may be clogged.

I'm able to get the filament to feed through the entire system and I can see the gears turn on the extruder, but then it will say there is a blockage and not start printing. It literally has brand new everything.

After that, it now won't take any filament and all of the cfs slots feel blocked, including the one that was just feeding filament.

Update: I think I fixed it. Somehow, the cutter became dislodged and disappeared randomly. I installed a new one but accidentally upside down. The cutter not being there was likely the cause for some of the early errors and the incorrect installation was the cause of the subsequent ones. Very silly and I feel super dumb.

New to 3D printing and have only been messing with this for a week but sense day 1 we have been getting this code. It appears twice then on the 3rd retry it prints just fine. Need help diagnosing. Also it might be completely un related but here on the last couple prints on the second retry the plate rises to a point and stays to where the nozzle will try to come out and hits the plate. On the error code I’ve been told to make sure I have the right printer selected and from what I can tell I do. Any help will be greatly appreciated!

My K2 Plus has begun to act up during multi-material prints.

I've recently gotten into the whole "PLA/PVA Support Interface For PETG Parts" thing with particularly small or fragile prints, to make support removal easier.

While I dislike how much time it takes and how much waste it produces due to the single print head, it's still better and faster than having to re-print over and over because I broke the part trying to remove a stubborn support. (Looking at YOU, previous Ender 5 Plus...)

However, recently, I've run into a problem. My print head has recently begun clogging the first time and every time it tries to switch from PETG to PLA or PVA.

All the materials print perfectly fine on their own profiles, but combining them seems to cause the clogs.

The extra annoying part is that once I cancel the print, scrap the part, and try to load new PLA via the CFS menu, THAT works just fine! But it apparently can't unjam itself while it's got a print paused...

I imagine it has something to do with the temperature difference requirements between the two filaments, but it didn't do this until recently, and I haven't changed any settings.

I'm running the machine at a pretty high speed, so I'm printing PETG at 270C and PLA at 240C, with excellent results on their own.

I imagine even if the printer drops the temperature to 240 to load the PLA, the PETG should still be able to clear out just fine.

Is it heat creep perhaps? Temps just too high? Maybe there's a reason everyone is removing the shroud from the print head...

For what it's worth, I'm using a Micro Swiss hardened CHT hotend setup. Everything else on the machine is stock.

Please help 😞 I'm a complete novice at this and despite the benchy printing perfectly along with a poop chute it seems every other print I try to send regardless of where I find the file I get this error.

I've taken the back panel off and checked for any loose wires, tightened all the interior bolts that I could find (only 4 needed the tiniest adjustment), and everything I've sent has been pretty small given the K2 Plus has a humongous build plate. I've completely reinitialised the printer after all this and still no luck.

I've sent files from my phone directly from the Creality Cloud app, files from thingiverse which opened via the CC app, I've tried sending from the CrealityPrint slicer on my laptop and still I get this issue. The wiki is very unhelpful 😭

Hi everyone I just got my K2 Plus and have just been doing some initial tests but i keep getting this error at the start of each print. Any Ideas

https://preview.redd.it/7wan7tdz71kh1.png?width=2037&format=png&auto=webp&s=ed71bc7972915cf551677df29b7a1866e5cfb8e8