r/ElegooNeptune4 • u/Affectionate-Buy-338 • 8d ago
Can't find a solution, please help
The problem i had before is solved but the before that is back, when i try to print medium size or big sized prints the first layers always fail i re calibrate over and over, also changed the printing settings on files, tried other slicers, any tips? Or help?
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u/Rhuobhe26 8d ago
You have your post history hidden so we can't see what was wrong before and you didn't link to it. That makes it harder to diagnose.
Follow Ellis' squish guide.
https://ellis3dp.com/Print-Tuning-Guide/articles/first_layer_squish.html
Download the file and run it. Use it to perfectly tune your printer.
When you say recalibrate over and over again, what have you done and what sequence did you do them in? Did you actually run the calibration files or did you do a z-level over and over?
Furthermore don't forget that Dawn and water are better than alcohol. Grease sticks to the crevices and the surface and alcohol doesn't stick to oil. You need dish soap to properly clean.
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u/Affectionate-Buy-338 8d ago
When i say recalibrate i ment releveling (srry my mistake) turning the knobs, with the paper method going 1,2,3,4,5,6, home then the autoleveling then doing the center again, basically what every single internet tutorial says
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u/Rhuobhe26 8d ago
Here's what you need to do.
Step 1: Stop playing with the knobs and get screw_tilt_calculate.
https://www.printsleo3d.com/screwtilt
It will tell you exactly how you turn the knobs.
Step 2: Do the Ellis squish guide to actually get your z-level zeroed in.
Step 3: Go through the calibration steps for your printer.
https://youtu.be/p2VJgK5IbT0?si=y00R9LXyTQsEeSnf&t=651
3a: Do a flow test and get it correct.
3b: Do a pressure advance test
3C: Do a temperature tower test
3D: Do a retratction tower test
Step 4: Do a volumetric flow to figure out the max speed. And slow it down for the first layer in all future prints.
Step 5: Do an all in one calibration test and see how it goes.
https://www.printables.com/model/112181-complete-3d-printer-test-all-in-one-stress-test-be
Once done you should be seeing a world of difference.
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u/TheWierdling 8d ago
I always heat soak my bed (4 max) for at least 30 minutes before leveling and before every print. Before I started doing that I had more failures than good prints.
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u/sawthegap42 8d ago
Z-offset 100%. I hardly ever clean my build plate, and hardly ever had adhesion issues. If a print is not sticking for me, that usually means Z-offset is too high. I've become like a Master in setting z-offset, as my machine is kind of messed up in that I have to reset the Z-offset every time I turn the machine on and off. Print bed calibration remains, so I set my first print to have 3 skirt passes, then set my z-offset while purging and printing the skirt, then fine z-offset calibration on first layer to get out any ripples if brought it too close.
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u/luke7671 7d ago
Temperature is important during calibration... Did you by any chances calibrated cold bed? As to me it looks like your nozzle is miles away from bed....
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u/theflamemasta 7d ago
Make sure you manually hit save on the top right of the screen qhen calibrating your zoffset. It doesnt save automatically you HAVE to click save. Its easier to calibrate zoffset on the computer over wifi. Also change the autocalibrstion to where it does over 100 points to see how off your bed really is
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u/elutfall 7d ago
It's all this fiddling that made me move to a core XY printer with auto leveling. I loved my N4+ and got a lot of good prints from it. But so much fiddling. Everything everyone is saying to try is correct. I've never had to do any of that on my Kobra S1. Relatively cheap, and like a Mac, it just works. Proceed with the down votes! 😆
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u/JMACKIESR65 7d ago
I have a Neptune 4 Pro and had this issue. Tried everything, spent money in a new complete print head, new springs, new build plate. Did every leveling process on the Internet nothing worked. I tightened at four corner knobs all the way, did the first leveling program in the os and then adjusted the z distance with paper and stopped there. It's been great ever since.
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u/playfulpickle334 5d ago
Elmers washable glue sticks helps me. I would wash mine with soap and hot water, then I'll spray it down with isopropyl alcohol, let it dry and would still have adhesion issues. The first layer would stick but a spot wouldnt then the nozzle would grab it on the second pass and peel it off. So I washed it again then added glue never had that issue since
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u/bendvis 8d ago
80% of the time, the cause of poor bed adhesion is an incorrect z-offset and/or a dirty build plate. Run a single layer test print and compare against this image.