r/ElegooNeptune4

I have 4 of the Neptune 4 Max Printers, and I am trying to print a large quantity of a a specific model. I am not understanding why I need to adjust my Z offset after every print? It seems to loose where the Z is at? Every time after a print, I need to move the Z offset up .1-.3 mm. Frustrating as I can not just hit reprint and quickly turn over the project. Any Ideas?

Hello,

I use Elegoo Neptune 4 Pro printer. I set the Z probe calibration based on this page: http://neptune4.help:8000/doku.php?id=tune_probe_configurations

[probe]
pin:^PA11
x_offset: -24.25
y_offset: 20.45
z_offset: 0.0 # more on this and probe calibration later
speed: 10.0
samples: 2
samples_result: average
sample_retract_dist: 3.0
samples_tolerance: 0.005
samples_tolerance_retries: 7

I get these messages in the Klipper log while leveling the bed. Is this normal or should I do something about it?

13:16:12  // probe at 214.750,199.450 is z=0.112500
13:16:12  // Probe samples exceed tolerance. Retrying...
13:16:14  // probe at 214.750,199.450 is z=0.145000
13:16:15  // probe at 214.750,199.450 is z=0.110000
13:16:15  // Probe samples exceed tolerance. Retrying...
13:16:16  // probe at 214.750,199.450 is z=0.115000
13:16:17  // probe at 214.750,199.450 is z=0.122500
13:16:17  // Probe samples exceed tolerance. Retrying...
13:16:18  // probe at 214.750,199.450 is z=0.112500

Thanks!

The little red light on the sensor is on, however, holding any kind of metal underneath it doesn't seem to make it go off. I'm assuming that's how it works.

New sensor, or?

Hello Everyone, I want to share my Machine Start G code config. Since I've been reading a lot of people are having issues with their first layers and prints. I had a ton of issues with my prints, and it was getting very frustrating to print with this machine. So I decided to try an auto bed level that is included in ORCA slicer.

Basically is Orca Slicer's auto bed level and mesh along with the default Neptune 4 max profile to prepare the machine. The machine will home, heat up, probe and do a bed mesh the size of the print before starting, then it will purge a small line of filament prior starting the first layer.

For big prints, it will take a while to do the bed mesh, but I think is worth it, and lets face it, if you are printing above 40x40x40 quality is priority vs speed, so I guess 10 minutes or so is not that big of a deal to get a good first layer to grip the print.

Anyways, if any of you would like to try it, go ahead, I think for the people who are having a headache with the first layer it is a good option to try. Just replace the machine g starting g code in the machine settings.

If you have any observations or improvements to this g-code please share your thoughts in this thread. any improvement / comments are welcome.

I also recommend before trying this manually leveling your printbead with a screw adjust or a first layer print to get tune the z offset.

edit: my machine is not modded, it has the original hardware and firmware. Hope to soon add an eddy probe.

Here it goes:

;;===== date: 20240520 =====================

M400 ; wait for buffer to clear

;[printer_model]

;initial_filament:{filament_type[initial_extruder]}

;curr_bed_type={curr_bed_type}

M220 S100 ;Set the feed speed to 100%

M221 S100 ;Set the flow rate to 100%

M104 S140

M190 S[bed_temperature_initial_layer_single]

G90

G28 ;home

G1 Z10 F300

G1 X{print_bed_max[0]*0.5-50} Y0.5 F6000

G1 Z0.4 F300

; Always pass `ADAPTIVE_MARGIN=0` because Orca has already handled `adaptive_bed_mesh_margin` internally

BED_MESH_CALIBRATE mesh_min={adaptive_bed_mesh_min[0]},{adaptive_bed_mesh_min[1]} mesh_max={adaptive_bed_mesh_max[0]},{adaptive_bed_mesh_max[1]} ALGORITHM=[bed_mesh_algo] PROBE_COUNT={bed_mesh_probe_count[0]},{bed_mesh_probe_count[1]} ADAPTIVE=1 ADAPTIVE_MARGIN=0

M109 S[nozzle_temperature_initial_layer]

G92 E0.0 ; reset extruder

G1 X{first_layer_print_min[0]-10} Y{first_layer_print_min[1]} Z0.8 F6000.0 ; position 10mm left from the lower left of the first layer

G1 X{first_layer_print_min[0]-10} Y{first_layer_print_min[1]+30} E30 F360.0 ; extrude 30mm of filament in the y direction

G92 E0.0 ; reset extruder

G1 E-0.5 F2100 ; small retraction

G1 Y{first_layer_print_min[1]+40} F6000.0 ; move an additional 10mm without extruding

G92 E0.0 ; reset extruder

Edit 2: Please read Accomplished_Fig6924 comment in this thread, he gas a great explanation of the adjustments that can be done to this code and share some codes of his own, they seem to be more robust and contains different versions for the neptune's printer models.

I recently bought 16mm silicon spacers to replace the springs on my printer as I was told it would keep the bed levelling consistent for a longer period of time. However, after switching all 6 of them, my bed levelling became very uneven as one corner could have a very loose gap when doing the aux even though the screw being very tight already, while the other corner could have no gap at all even if the screw is completely loose.

Printer: Elegoo Neptune 4 Max

This is a pic that i took of the levels after doing automatic levelling.

https://preview.redd.it/bq20oe6d6zjh1.png?width=960&format=png&auto=webp&s=875281a95017926a5f91904e462a3bbcd964ee08

Hi guys!
In advance, sorry for any mistakes in the English language (I refuse translating if not absolutely needed).

I’m almost pulling the trigger in migrating to opennept4une and would like some opinions.

I have a N4Pro, never had any problems. I use it as a hobby, never intended to make money with it.

I got silicone spacers, webcam, octoeverywhere, configured screws_tilt_adjust, adaptive bed mesh and a small customization for cleaning the tip of the hotend before printing. By the way, some people here helped a lot, thanks!

Soldering, burning firmware and solving possible issues with some research is not a problem for me.

I would like some opinions on migrating, is it worth it? What problems have you experienced?

Any other relatively cheap upgrades recommended?

Thanks again.

Is anyone really struggling at the minute with printing? Currently trying to print in petg, i genuinely spent the guts of a whole day trying to calibrate my printer to print petg. At first i printed the thing i needed before the bed temps, it printed it ok but i knew i could get better.

The test prints eventually got it to what i was happy with so i tried my hand to print and it literally turned out worse before the calibration.

Then i calibrate AGAIN, printed AGAIN and messed up AGAIN so im at a cross roads right now. I used Klipper to get the bed mesh spot on and it was as good as i could get. Printing also at 240 degrees and 75 for the bed temp...idk im losing it

Ik ben helaas mijn usb stick verloren. Die usbstick werd geleverd bij aankoop van mijn printer; Elegoo Neptune 4 Plus.

Kan iemand mij vertellen hoe ik weer aan die usb Kan geraken.

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Hi folks,

I bought a used Neptune 4 Plus. Unfortunately, the screws for the large heatsink behind the print head are missing.

Can anyone tell me which ones they are?

I believe they should be the (PM4*50) 3PCS.

Hi All, I have a Neptune 4 pro and have had this around a year maybe more, I lost heart in the machine as I could not get it to print right and got frustrated and quit. I know not the greatest thing to do but hey I'm a child at heart. So recently I thought lets try and give it one last test, as if I could get it to work I would use it a lot more.

Here is the problem, If I am printing a small piece the printer prints it fine, for example I'm Trying to print the Dragons Rest Hero quest board, if I print the clips they turn out fine but if I try and print a large flat piece I get turned up edges every time. I cant understand it, small things work and bed adhesion is not a problem, the printer is in an enclosure as well so its not getting a draft or cold. I'm printing PLA directly on the PEI sheet and the bed is at 60, but I have also tested it at lower and higher temps and even no heating all with the same outcome. Extruder temp is at 225. Not sure what to look at at this stage, I'm happy to start again and its something I may not have set up correctly, and yes I have levelled the bed and used the screw tilt adjust thingy and got it as close to 1 as possible on everything. the mesh is quite straight and I have adjusted the z- offset to the best of my ability.

As I said, I'm not having adhesion problems small items print just larger prints curl, the larger the print the worse the curl.

Any Help would be gratefully received