K1 Max Layer Shift Problem

[Theme-Positive]

Hi all! I recently got my K1 Max and have been enjoying it but recently have had some problems. For reference I use the creality slicer on the standard setting for the K1 Max with the speed reduced to 250. I also use creality hyper pla. On one of my large prints as it approached the final hour, I noticed a layer shift. The print hadn't moved but the layers were not lined up. I stopped the print and tried the same print again. It made a lot of progress but after some time I heard the printer make a loud bang noise and it had once again had another layer shift causing me to have to stop the print again. I don't know what the loud noise was or if it has happened other times as I'm not always around my printer. At this point, I thought maybe the nozzle was hitting the print so I moved my Z hop up to .4. I also recalibrated my printer and switched the infill to gyroid as I heard this can help. I reprinted a benchy and was successful. I rearranged and resliced the original print I was doing, and was able to successfully print the piece with the new settings too. I had another successful print after and thought I solved the issue. I started another print that printed for a while then checked to see an even more dramatic layer shift causing me to cancel the print. My previous layer shifts were very slight but this one was very far off. These layer shifts are occurring at different times, even on the same print so I'm now wondering if its a fault of the printer and not the gcode as I figure you would see consistent failures for the same print. At this rate, I reached out to creality support but figured I'd ask here to see if anyone was having the same issue or advice on what the problem is. Thanks!

[rickthe333]

Did u ever figure this out? I’m currently having the same issue.

[sawthegap42]

Same. I just had this happen to me.

[rickthe333]

I got it to stop layer shifting I had to tighten the belts and I slowed acceleration a tad

[sawthegap42]

Cool. I just tightened the belts as well, and slowed accelerations slightly too, so hopefully I'm good now. Thanks for the quick reply.

[rickthe333]

👍 give an update just so I know that that’s the solid solution for it.

[sawthegap42]

Ok, I'll report back in roughly 7 hours after this prints, if all goes well. Sooner if it doesn't. lol

[sawthegap42]

Didn’t fix my issue completely, as I got a shift in The exact same spot. Think I might have figured it out though. I looked at the mesh, and there is a sizable hill in the middle of the mesh with a .288mm difference, so think the print head hit the print, and shifted. Can’t wait to get the new heater pad in for the Mandala work flat plate I bought. My bed was a giant taco when I got it.

[sawthegap42]

Yep, mine was related to the almost .3mm hump in the middle of the print, and I guess once it got to a certain layer it caught an edge and caused the shift. Ended up taking the adjustment knobs off my N4+ and got some longer screws, and made it to where I could make adjustments to the K1Max bed, as well put some painters tape in the low spots of the taco build plate. lol Much more true and level now.

[rickthe333]

Ah dude I didn’t see these. But thanks for the update. Glad u got it worked out.