I’ve printed hundreds of prints over a few years. Now I haven’t printed in a few weeks but this is the first time I’ve had a problem like this. This is supposed to be flat. What’s happening?
Bonus video: https://drive.proton.me/urls/74XZH4FVSM#1QqSvXK3MJCF
The audio might be a clue for you to help me troubleshoot
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Check your z offset, first layer squish and extrusion multiplier, then pressure advance.
That looks like too much filament or too close to the bed. Some of the edge artifacts could be pressure advance as well.
I spent a year chasing those problems out of a printer, and had hundreds of FL tests that looked just like that.
If you’re interested, Ellis 3D tuning guide is amazing. (I use a different pressure advance calibration method, but the rest has been bang on for me…)
Which pressure advance calibration do you use and why?
It might be slight overextrussion.
From the audio it almost sounds like the extruder is skipping like you may have a clog? What material is this? What temperatures, bed and hot end? Have you cleaned your bed recently?
If it’s not clogged (change your print nozzle if yours is easily swappable), make sure the heat is right on the hotend. Extruder skipping can happen if the material isn’t melting fast enough to have the right viscosity and hence the extruder just can’t squeeze it out fast enough. As a corollary, try slowing down your print and raising the temp a bit.
It’s PLA. Whatever temperature the printer decided for the material and bed. It’s never been a problem.
It’s a cool super tack plate. Are you supposed to clean those?
Umm, disclaimer, no experience with 3D printing, but…
Could humidity or dust on the print bed perhaps be an issue?
It’s warming up here and humidity is rising. But it’s never been a problem before and as I understand humidity is more of a PETG thing, this is just PLA
While PETG certainly has a lot more moisture problems than PLA, PLA can still give you a lot of grief if it isn’t dry enough. Stringing, oozing, uneven extrusion, and many other weird problems. I would definitely try to dry the filament…
But this could also look a bit like over/under-extrusion… Have you tried calibrating your e-steps?
@akilou @over_clox Nono, PLA is also sensitive to humidity. I have seen similar things with filament that I know is dry, so I think it must be something else, and I’m curious what it is.
Overextruding? Have you changed the filament? Sometimes they flow a bit differently.
