Curved lines on exterior walls
Hi folks, could really use some help in diagnosing what I am seeing here. Tried to look online but couldn't find examples of something that looked the same. Admittedly I am still quite new to 3D printing. On this calibration cube, I am seeing these sort of curved diagonal lines going across the face on the y-axis. However, I am not seeing this on the x-axis. I have attached some pictures below.
Print/filament details
Printer: Original Prusa XL - 5T Input Shaper 0.4 nozzle w/ Prusa Original XL Enclosure
Filament: 3D-Fuel Standard PLA (I used the default Prusa provided filament profile for this filament)
Nozzle Temp: 200 C
Print Settings: I used the 0.20mm SPEED profile. Did not change any settings here.
Where would I start in trying to diagnose this? It doesn't appear to be your textbook ringing/ghosting, so would there be another name for this kind of artifact? I am willing to try some test prints as time allows as well as try to check the printer itself as the enclosure was installed recently.
Check the underside, this sort of distortion is often due to poor adhesion allowing slight warping so that the top surface is fractionally undersize and the calculated amount of filament no longer fits neatly.
Cheerio,
RE: Curved lines on exterior walls
Hi Diem, thanks for your help! Taking your input, I took a look at the bottom and looks like there was some poor adhesion due to me being a bit lazy and not having cleaned my bed for some time. I have put an image of the bottom of the original cube print below.
For this test, I wiped down the bed with warm and dish soap. And then wiped it down once more with 99% IPA. I also increased the first layer temperature from 210 C to 220 C to hopefully help with adhesion. All other setting were left the same. I have put the images of the the new cube below. I put two images of the y-axis to hopefully better show the lines.
I believe the bottom for this cube looks better than before. Unfortunately, the curved diagonal lines still appeared on y-axis sides but this time they are steeper lines. Would this be a sign of improvement?
I think I should also ask how good should my adhesion be. My build plate is the Satin Powder-coated Steel Sheet. As soon as the print is finished (within 10 to 20 seconds), I am able to easily pull the cube off the build plate with just my hand with little resistance (for the both the original and the new test cube). Would this be a sign of bad adhesion?