Having issues with circular prints where it doesn’t always print in a complete circle but and odd 4 or 5 sided object. Using PLA and does this from snapmaker, sunlu and creality PLAs. This causes prints to lift off the bed as well. Does this with both the stock plate and the BIQU glacier plate. I set my bed to 55c to 64c, and even slowed the prints to 15mm/s for the first couple layers, also slowed butter and inner walls. My Bambu P2S has no issue printing the same print at fill speed. I attached some pictures for ref.
Does your gcode preview also look like a 4/5 sided object and the nozzle travels in that shape? Or it only ends up looking like a 4/5 sided object to adhesion issues?
First layer adhesion is fine or it happens on the next layers?
You could try increasing the nozzle temperature a bit. I don’t know how well calibrated / repeatable nozzle sensors are, but I could easily imagine there is a variance between brands of printer.
Whats odd is that if I go to Settings > Device Calibration, toggle Heated Bed Leveling the print will work after that. However any print after the good print fails again and have to do the Heated Bed Leveling again. I don’t want to do this every time I print as its a 10 min addition to the time.
Sounds like a physical fault with the printer.
Manual lowering the z offset possible?
Tried that as well, put it from -.05 to -.15 in printer.cfg.
Lowering the first layer speed could help, more heat as well. Did you clean your build plate with IPA to degrease the surface?
Lowering print speed was the first thing I did. Lowered it down to 15 even. I clean the build plate with both soap and water, and also IPA after every print.
I’m trying to print the rim for a basketball trashcan & having sort of the same issue. Still a circle but it looks like the tool head took short cuts instead of following the circle. Haven’t tried the print on my K2 Plus to see if it has the same issue.
Using the latest Snorca slicer v2.3.4 I think
Have a quick question for you. Are you keeping the program open and clicking file new or open when doing other prints? Im wondering if it’s something with the slicer. Im testing something today where I close and reopen snapmaker orca after every print. Ill let you know if that may be the issue.
If the Gcode doesn’t give the nozzle the expected path, you would be able to see that in the preview. If the Gcode is correct but the nozzle isn’t following the expected path, that’s a bug in the interpretation of the Gcode by the printer.
Have you watched the first layer go down? I’d bet that the movement of the nozzle is just fine, it’s just that the filament is not sticking down to the bed in all places, therefore being dragged into straight sections.
- You can slightly increase the print temperature. I’ve encountered this issue as well. Third-party filaments default to 220°C, but I ended up adjusting mine to around 230°C.
- You can increase the bed temperature. This is especially important for PETG, which works best at 80–85°C.
Always watch the first layer!
I don’t open/close the slicer between prints. The hoop prints in a circle but the tool path doesn’t follow the circle all the time, it takes shortcuts through the interior of the circle. Does this in the lower layers, doesn’t happen right off, doesn’t start until maybe layer 15 or so. I’ve looked at it in the slicer & it doesn’t take the shortcut. I’m currently on Paxx12 v1.3.0 firmware.
Printed it yesterday on my K2 Plus using the Creality slicer & it printed fine.
Ok so i tried the following and it seems to be working for me. I closed and reopened slicer, but i havent closed and reopened between prints until the issue happens again. I have first layer speed at 20. Inner walls at 150 and outer walls at 80. Haven’t had the issue come up yet. Also to note my printer was making a squeeking noise when the bed moved. I greased the screws and also tilted the printer to look under and I think it knocked loosed some debris maybe, because it isnt making the noise anymore. All is good for now.
So you guys are printing directly from the slicer and not uploading the Gcode to the printer to print locally? May I suggest trying the latter?
My printer is in the LAN mode & I send the files directly to the printer over my local WiFi. I never print through the cloud.