If anyone knows have to solve this issue, please let me know.
This is the result I’m getting printing Bambu PETG with my P1S. The filament is dry (I took it out of the package, ran it through the filament dryer, and then immediately tried to print with it). I’ve used multiple spools of Bambu PETG with the same results using the Bambu profile. I’ve tried slowing down the speed and printing with the door open, closed, and cracked.
What am I missing?
Welcome to the forum.
Good job explaining your problem with pictures and what you have done so far.
The one thing I would suggest is trying a different infill pattern. Grid infill is a crossing infill and is known to be problematic. Suggest trying Gyroid or the new CrossHatch infill pattern.
I don’t know if this helps or not, but comparted to PLA, PETG is kind of ugly and does not print as cleanly, especially with fine detail. I was disappointed when I first tried PETG, but it does have its uses, fine aesthetics just isn’t one of them.
That makes sense, and could explain the bits of plastic I see all over the print bed. I’ll switch up the infill type and see if that fixes the issue. Thanks!
The model I was trying to print in these pics doesn’t really require fine detail, but I was also trying to use PETG for a prototype I’ve been working on that does require fine detail. I was using PETG because I need the temperate resistance, but I found out that Hatchbox PLA Pro+ has temperature resistance similar to PETG, but can print finer details like PLA.
@user_252029329 this is not normal quality for PETG yes a bit more demanding than PLA but nothing like that
this Long forum may help , there are others in summary:
Correct K,Flow,TEMP, max speed start bellow 100mm/S maximum possible for most petg is 150mm/S not recommended for outer walls small perimeters
Note that K,FLOW from my experience for my PETG for X1C reqires to be decreased from measured
Sorry do not have P1S to give you profile only X1C and other printers, you will find detail profile in the forum i sent you some where
Looks like your details on the middle of the bed have broken away from the brims.
Do you get the same results on different models? The little bits and balls laying loose on the plate could be buildup on the nozzle when it was trying to print on the knocked over details, and then rubbing the balled up filament off the nozzle when it returned to the larger parts?
I recently had exactly this same problem using Orcaslicer but on a different printer (Kingroon KP3S Pro V2) The infill pattern causing the problem you’re seeing on a long run like yours - will be either rectilinear, crosshatch or grid (in Orcaslicer)
Changing to Gyroid solved the problem completely. Alternatively you could try upping your infill density to a higher % although that’ll still likely be prone to “blobs”
Use Gyroid as JonRaymond suggested.
Hi @ user_252029329,
as I posted several times in the forum over the last months just change the temperature for “other layers” (so everything except the first layer) from 255°C to 270°C. This solved all my Bambu PETG problems.
