Bambu Lab P1S 0.4mm nozzle Kingroon PETG

While trying to print with the Kingroon PETG, the first problem that arose was the missing filament preset in Bambu Studio. So the first step is to create a proper setting to hopefully use for all future Kingroon PETG filaments. The desired result is the easiest and fastest way to print high quality prints from the time the filament is loaded. For Filament loading and storing I use the BambuLab AMS 2 Pro.

Experiments

Now I needed or probably wanted to experiment a little. So I used different filament presets with undried and later dried filament to find the easiest and quickest way to print Kingroon PETG in a Bambu Lab P1S. The following headlines state the print profile used and whether or not the filament was dried.

#1 Generic PETG HF without drying

For the first test print I wanted to see, whether drying is an absolute must, at least for the batch of filament I got. There seems to be quite a huge variety of opinions and experiences, so I wanted to experiment for first-hand experience. Furthermore I wanted to see if one of the generic presets works for the Kingroon PETG.

#1.1 Bambu Cube

For the first test a Bambu Cube was imported onto a empty plate. With the ‘Generic PETG HF’ profile selected and no further changes the print result was quite nice, as seen in the attached picture.

#1.2 Silica boxes for the AMS 2 Pro

After the successful cube print there were high hopes for all further prints with the same settings. Unfortunately printing silica boxes for the AMS showed that the cubes may have been just luck. As one can see in the pictures there were blobs, over extrusion, cracks, teared-off parts and some minor stringing. I saw those throughout the print job but wanted to let it complete, to see how scuffed the result would be. So after that I decided to dry the filament in the AMS for 8 hours at 65°C.

#2 Generic PETG without drying

Still with undried filament, I tested the second generic profile for PETGs in Bambu Studio. Again with an Bambu Cube on a otherwise empty plate. the results were pretty similar to the other preset but in my opinion just slightly worse. That is why I discontinued further testing with this profile, for now.

#3 Kingroon PETG Basic and drying

#3.1 One Silica box for the AMS 2 Pro

So after some more thorough research I stumbled upon the preset files on the Kingroon website for their PETG in combination with Bambu Lab printers. After downloading and importing I tried to print part of the aforementioned silica boxes for the AMS again. But this time not the whole plate but just one of the boxes, to reduce the filament waste produces in these tests.

#3.2 Bambu Cube

Due to the good quality of the single silica box print I went and printed a Bambu Cube with with the Kingroon PETG Basic profile to see if there is a difference in texture compared to the undried filament and generic profile.

#3.3 Remaining Silica boxes for the AMS 2 Pro

#3.4 Plate Holder

Note: I changed the plate to a smooth PEI plate, just because I wanted to try it out.

Learnings

Conclusion

Maximilian Krass

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