First print inter layer adhesion
Hello Everyone,
After getting the Core One unboxed and setup. I tried a couple of the prints on the USB stick. Benchy and the Keychain piece. This is using the black PLA that came with the printer. Both times the first layer was great, but then the printer sped up and nothing was adhering to the first layer. I did not take any pictures. To me it seems that it is trying to print too fast, not sure if this can manually be adjusted on the fly, I know it can be done in the slicer and the gcode. This is my first Prusa printer so I am very new to everything Prusa, but I am learning. Thank you for all your help.
RE: First print inter layer adhesion
Print speed can be adjusted during a print, using the LCD Controls
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
A picture of the issue might help us help you.
Cheerio,
RE: First print inter layer adhesion
But it shouldn't be necessary to tweak the print settings, right? These sample prints were sliced for the Core One, and for Prusament PLA (like the one included). So why wouldn't they print perfectly out-of-the-box?
Is it very cold in the room? Just a stab in the dark, really; maybe others have more pertinent suggestions?
RE:
Are you sure that the supplied filament is PLA? And another thing: do you have the correct printer profile selected? (I mean Prusa CORE One HF0.4 nozzle).
Edit: I would also check the Print Settings in Slicer (layer height and especially Temperature)
I am from the Czech Republic, I don't speak English, I translate using Google Translate
RE: First print inter layer adhesion
I will reply to a bunch of the threads above. It is definitely PLA. So these were the models that came with the printer on the USB stick. This is everything that came with the printer. I have not had a chance to use the Prusa Slicer yet, hopefully I will be able to get a different model into the slicer and lower the printer settings, I did find them. But since these were sample prints that I tried to print were straight from Prusa, I would have thought they would have printed without issue since they were specifically made for the Core One. I will re-try tonight and take pictures of what it does print. It is cooler in the room (60F) but the door was closed on the chamber. First layer was great with very good adhesion. I do appreciate all the help,
RE: First print inter layer adhesion
It's about an assembled Core One, so the supplied filament should be 1 kg of Galaxy Black PLA. The test prints preloaded onto the USB stick are already sliced for the standard Core One nozzle, and the firmware defaults to assuming that standard configuration as well. So I am really puzzled what might have gone wrong.
@ddecoste38135, did you pause the print or open the door to inspect the first layer? The original 6.3.0 firmware had an issue with restarting at the correct height, I believe.
RE:
maybe a silly thing but could it be that the plate has some residual "dirt/grease/whatever" from the manufacturing process and need a good cleanup before being used?
RE: First print inter layer adhesion
maybe a silly thing but could it be that the plate has some residual "dirt/grease/whatever" from the manufacturing process and need a good cleanup before being used?
But the first layer is fine according to the OP. It's the subsequent layers that fail. Can't clean up the filament itself... 😉
RE: First print inter layer adhesion
So I did update the firmware to the latest. 6.3.1. Could that have effected it? You are correct on the 1 kg of Galaxy Black PLA and they are the test prints on the USB. I did not open the door until I had cancelled the print. The first layer was excellent. I have brought a new model into the slicer and set it up for the 0.2 layers structural and I see the print speeds did decrease a lot. I will try it tonight.
RE:
I think we have a similar problem.
I did receive my core one today and did test print a benchy from the usb and the included black PLA.
the benchy printed to about 60% then the adhesion was gone, the benchy moved and i was printing spaghetti.
in total i printed 2 failed benchy's.
i think it is a speed issue as well. since putting the printer in stealth mode (and quiet mode) it printed a full benchy.
now this could be the slice settings on the files in the usb. or something else. haven't tested any self sliced files yet.
RE: First print inter layer adhesion
Thank you everyone for your patience as I am quickly learning. So I loaded up 2 different models into Prusa Slicer and I chose "0.20mm STRUCTURAL" for one and "0.15mm STRUCTURAL" for the other model. Then last night I was able to successfully print them, and the they came out great, I was very impressed. Looking at the printer settings, the infill was set at 120, Where on the 0.20mm SPEED @ COREONE was set to 300. I believe that Benchy was probably set to the higher speed. It should have printed but I am currently happy with the "STRUCTURAL" speeds. This printer blows away the old one that I had been using. I also noticed that Extruder door hinge (Not sure of the exact name) was not snapped all the way in against the filament. Maybe this had something to do with it. I will probably test the high speeds again, but for right now using the STRUCTURAL settings will fit my needs great. Thank you for everyone's help.