I just printed my first benchy on my elegoo neptune 3 plus, and ive noticed some imperfections. There are a few strings and the surface is uneven sometimes. The main thing ive noticed is that the back has a lot of blobs, maybe this has something to do with power loss recovery? Help would be appreciated!
Yeah ive just noticed the writing, i think thatâs what mainly causes the weird blobs
Useful z offset reference for your first layer
Thanks!
Stupid noon question. If I see lines, I should lower the z offset... as in make the number smaller?
Some printers have the Zoffset inverted. Print a large single layer cube, i.e. a sheet , and tune the Zoffset while it prints. There should be no gaps between the lines from above. Form below it should have no gaps nor ridges nor valleys. Just solid.
If you have 0.01mm calipers measure and compare the thickness (slicer layer height) after cutting away the edge.
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Hey there OP, you seem to be having some problems with your first layer. This is a very common issue on modern printers and generally a place where experience and knowlege is important. Your first layer is crucial for a good print and you should definitely take your time and learn how to properly adjust your first layer before starting a print since that could easily mess up your prints or even worse, damage your Printer's Hardware. For information on how to level the Bed properly head over to our Wiki Section Calibration
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On what speed are you printing?
These lines can be caused by your gear not keeping up with the speed. If you want to keep the speed, you should try raising the nozzle temp to 215 or more. This will make the quality better, but not perfect.
If you want a better quality but doesn't care about time, you can reduce the speed.
Also, it seems that your nozzle is too far from the bed. You should try to bring it closer.
Thanks! My speed is 60mm/s, and i will try upping the temp tomorrow. Ive already tried raising the bed, but it became a spaghetti-mess, so maybe ive raised it a little too high
I print at the same speed and I go with 225Âș on PLA.
Most pla i wouldnt go over 215°C unless its silk or some PLA+. standard PLA usually is great between 200-215°C. 225°C seems really hot for pla.
Lower speed (I use 20mms) and smaller layer height (I use 0.08)
This speed is fine. A stock neptune 3 should have no trouble with 50mm/s outer walls and 100 inner. The main issue here is some sort of z binding.
main issue here is some sort of z binding.
Ya the belts could be slightly too tight or slightly too loose. Not off enough for layer shifting, but just off enough to make that binding stand out.
Lower speed (I use 20mms) and smaller layer height
The speed and layer height are just fine. Unless something is very detailed, going lower than .2mm just increases print times significantly for no real benefit. And 60mm/s is perfectly fine on a neptune 3 for most things. I usually print stuff at 60-70mm/s unless its really small and really detailed.
Forgot to mention: current bed temp is 50 and nozzle temp is 210.
Increase bed temp to 60 Increase nozzle temp to 215-220 Better z axis Slow down your speed and see what it does
Which speed setting do you change
Dry the filament, adjust the bed levelling, and Z offset. If that doesn't fix it, then play with the other settings
Overall it looks pretty good đ Bring the nozzle closer to the bed by tuning the Zoffset. There should be no lines visible on the bottom.
Note that there is writing on the back which is virtually impossible to print on a FDM printer.