I have been printing successfully for the past couple of weeks since I received my K2 Plus with CFS. Yesterday morning I tries starting a print with the initial auto leveling, and I heard a loud collision and then the bed dropped. I watched more closely, and the extruder was going back and forth on the x-axis hitting both sides of the walls. I powered it down, waited and powered it back up.
This time I ran the input shaping and auto leveling. It homed x,y, went to the back of the machine and then moved in front of the poop chute. Next it went further back and to the right, to move over the chute. When doing this it hits the corner, the bed drops, and I get a CM2789 Abnormal resistance in the x-axis movement direction, motor released. Fix issue and restart. This makes sense because it hits the corner which is giving it significant resistance.
Then it goes to the auto leveling and just starts banging side to side on walls.
I haven’t found much on the wiki or YouTube to explain this. I used the reset to default powered off and on then tried again with the same results.
I found something about recalibrating the steppers by going into the web page and running some g-code that was provided to zero the motors. So, I did that, took the screen shot and sent it to Creality as requested, powered off and on to retry, but again the same issue.
I’m not seeing any other hints at what I can try. Anyone have any suggestions? I have had great success with the printer up until this point. Everything has printed up to my standards at least, I’d really like to get this thing going again.
I guess it is just a waiting game until Creality emails me back.
ive been getting this also since the latest update…also getting CM2788…and clog issues even though theres no clog think i may try downgrading my firmware as i didn’t have these problems before update
Thank you for the suggestion. I think I’m going to try this. I have been in contact with Creality via email. Currently I have sent them printer info, and some videos of the extruder hitting the corner and the various errors it gives me. Maybe the firmware downgrade will work, and I’ll be running again. Thanks again for the response.
I received an email today from Creality saying that my ticket has been closed because another ticket is existing regarding the same issue. It is kind of vague. Not sure if that means that they are done with me, or if I will still hear back from them. I spent a lot of money on something that is unusable after less than a month. Not sure where to go from here.
I have received two emails now telling me that my ticket has been closed due to another similar ticket being open. I have not received any updates on the issue. I’m not sure if they are working on it or not. I don’t know how long they expect things to take. I have no idea if they will honor any warranty. I’m concerned because I invested a significant amount of money into something that is currently just taking up space. I’m not here to say the product is crap. When it was working, I was more than satisfied, I just need some assurance that I can get the problem resolved without costing me even more money. Is this common with Creality? I’m assuming everyone in this forum is here because they chose Creality, but was this a poor choice? I also own a K1, K1C, and a K1Max, and have not had any issues. Maybe it is just a fluke? If so, I feel like they should send a replacement. Maybe I’m just overreacting.
Just as a follow up. I did eventually receive a response where they indicated on a photo, I had sent what the problem was. I did not see it until they pointed it out. I had a set screw on the linear rail that had protruded just enough to cause the extruder head to stop, and in turn throwing off the x-axis movement. I snugged the screw back in and everything is working as it should. Have had no issues with the printer since.
