Elegoo Neptune 4 Plus User manual

User Manual for
NEPTUNE 4 PLUS
3D Printer
Pictures are only for illustration purpose, please take actual product as standard.
V1.3

Thank you for choosing ELEGOO product!
For your co nvenience , please read this instru ction man ual carefully b efore use, t he cautions
and tips in this man ual can help you bett er avoid inco rrect installat ion and u se.
For quest ions or pr oblems no t covered in this man ual, please con tact us at this email ad dress:
3dp@elego o .co m .
ELEGOO te am is always ready to p rovide you with quality service.
To give you a better experience of our pro ducts, you can also gain knowledg e of the op eration
of the eq uipment in the followin g ways:
1.The inst ruction man ual:You can f ind related instructio ns and vide os in the U disk.
2.ELEGOO o fficial website: w w w .e leg oo.com You can go to o ur official web site to fin d the
relevant op erating in structions for the m achine and contact inf ormation.

Cautions
1. Do not place the pr inter in vibr ating or o ther unst able environ ments, as the shak ing of the
machine will a ffect the pr int quality.
2. Do not touch the nozzle and heatbed when the p rinter is w orking to prevent h igh-
temperat ure scald an d person al injury.
3. After pr inting, pleas e take adva ntage of t he residual t emperatu re of the n ozzle and c lean the
filaments o n the no zzle with th e help of to ols. Do not touch the nozzle dire ctly with yo ur hands
during clea ning to avo id scald.
4. Please do product m aintenanc e frequent ly, and regu larly clean the printer b ody with a dry
cloth to wip e away dus t and stick y print m aterial und er the situ ation of po wer off.
5. 3D print ers contain high-spe ed moving parts, so b e careful no t to get y our hands caught.
6. Children must be s upervised b y adults w hen using the machin e to avoid personal in jury.
7. In case of emergency , please cut off the pow er directly.

Contents
Machine Parameters ------------------ ---------- ----- ---- ----- ---- ----
Machine Structure Diagram -----------------------------------------
Packing Li st ----------------- ------------------ ----- ---- ----- ---- ----- ----
Machine Installation ---------------------------------------------- -----
Operation Screen Introduction ---------------- ---- ----- ---- ----- ---
Auto Leveling -------------------------------------------------- ----- ----
Model Test ---------------------------------------------------------------
Resume Pri ntin g De scri ption - ----- ---- ----- ---- ---- -- --- -- --- -- --- -
Software Installation ------------------ ---- ----- ---- ----- ---- ----- ---- -
Onli ne P rint --- ----- ---- ----- ---- ----- ---- ----- --- --- --- -- --- -- --- -- --- --
Troubleshooting Guide -----------------------------------------------
Circuit wiring -------- ------------------ ----- ---- ----- ---- ----- ---- ----- --
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4
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Machine Parameters
Prin t Pa ram ete rs
Print Prin ciple: FDM （Fused D eposition M odeling）
Build Size: 320X320X385(mm³)
Print Pre cision: ±0. 1 m m
Nozzle D iameter : 0.4mm
Maximum speed: 5 0 0 m m /s
Regular pri nting spee d: 250mm/s
Maximum accelerat ion: 12000mm/s²
Tem per atur e P ara mete rs
Ambient Enviromen t Temper ature: 5°C ~ 4 0 ° C
Maximum Tempera ture of Noz zl: 300°C
Maximum Tempera ture of Hotbe d: 100°C
Soft war e Pa ram ete rs
Slicer Soft ware: Cura
Input For mat: STL、O BJ
Output Fo rmat: Gcode
Connecti on Type: U Disk, LAN ,WiFi
Pow er S uppl y Pa ram ete rs
Power Inp ut: 100-120V/220-240V;50/60Hz
Power Out put: 24V
Phys ica l Pa ram ete rs
Machine Siz e: 578*533*640mm
Net Weigh t: 14.4kg
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2
Tie rod
Filament tube
Filament detector
switch
Filament holder
Auxiliary
Cooling Module
X-axis belt
tensioner
Touch screen
Lead Screws T8
X-axis
stepper
Rigid Coupling
Z-axis
stepper
Y-axis belt
tensioner
Build platform
Nozzle kit
Machine Structure Diagram
U disk socket
Type-C interface
Network cable
interface
WiFi signal receiver

ELEGOO 3D Printer
01 02
03 04 05 06 07
08 10
(1.5 / 2.0 / 2.5 / 3.0 / 4.0)
09 3
13 The above accessories shall be subject to actual products, and the pictures are for reference only.
Fasteners
Tools
Packing List
11 12
（HM5*45）4pcs
（PM4*8）3pcs
（PM4*18）2pcs
（HM4*M3*3) 1pc
（PM4*20）5pcs
（FW M5*18*1）2pcs
（PM4*50）3pcs
(PM3*14) 3pcs
(PM3*8) 2pcs

4
Machine Installation
Attached U disk with an installation instruction video.
（HM5*45）4pcs
02
01
4.0
（PM3*14）3pcs
（PM3*8） 2pcs
①
①
②
②
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Print head installation: Use 3pcs (PM3*14) screws to fix the
print head through the holes of the metal plate from the rear;
2pcs (PMM3*8) screws to fix the front of the print head.
① ②

5
04
05
10
2.5
（PM4*20）3pcs
03
④
③

6
（FW M5*18*1）2pcs
（PM4*20）2pcs
2.5
（PM4*8）2pcs
11
07
06
08
3.0
2.5
2.5
（PM4*18）2pcs
（HM4*M3*3) 1pc
Cable clamp installation:
When installing, you need to
organize the cables and fold
them together to install and
fix them.
Filament detector installation:
（PM4*8） 1pc
⑥
⑤

Z
7
Filament detector switch
X-axis stepper
Z-axis stepper
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⑦
⑧
（PM4*50）3pcs

Special Case :
The bottom slide block has been adjusted before leaving the factory, but the pulley of the machine may become loose due to the
transportation. If the build platform of the machine is shaky and loose, an open spanner can be used to slowly twist the eccentric
isolation column under the platform until the slide block slides smoothly and does not shake.
Supplyme ntar y Introduction
Similarly, if the print head is shaky or loose, the corresponding eccentric isolation column can also be adjusted until the print
head slides smoothly without shaking, and the pulleys on both sides of the gantry also have corresponding eccentric isolation
columns that can be adjusted.
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Operation Screen Introduction
Left and right page keys
Gcode file display
Print Do cuments
Main Inter face
Prepare In terface
Set Inter face Level In terface
Three interfaces: movement,
temperature, Extruder
Motor unlock
Reset to zero
Moving distance
Set Y=0
Set Z=0
Set X=0
Temperature display
Compensation settings
121-point parameter display
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Auxiliar y cooli ng module instructions:
lUsers ca n click the fan icon to adjust the air outlet status o f the rear cooling fan d uring the pr inting
process.
lThe fan ha s three m odes: sile nt / norma l / sport, please a djust accord ing to the p rinting si tuation, as
shown in t he picture below.
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The auxiliary cooling module can be turned off during silent printing.

Print mode description:
lDuring the printing p rocess, the user can adjust the printing mode by cli cking the s peed icon, as shown
in the pic ture below .
lThe three modes cor respond t o three diffe rent spee d values, accelerati on values, drive mute thresholds ,
and perce ntages of fa n speed settings d uring print ing.
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Auto Leveling
When first running the machine, the distance between the platform and the nozzle needs to be
calibrated in the leveling mode, which is about the thickness of a piece of A4 paper .
Note that the leveling sensor only
detects the metal platform plate, for
example, replacing the glass platform
for leveling will not produce detection
effect, which will cause the nozzle to
squeeze the platform.
lWhen the printer is powered on, select 【Level 】.
lEach axis of the printer automatically returns to the home position, after entering the leveling page, place a piece of A4 paper between the
nozzle and the platform, and click the compensation value to adjust the distance between the nozzle and the platform (See Picture 2), and
push and pull the A4 paper, when there is friction generated, the center point calibration can be completed. Click on the auxiliary leveling
【 】, calibrate the 6 points of the platform with the A4 paper by hand-twisting nuts, and push and pull the A4 paper, when the paper
can be pulled out but not pushed in, the auxiliary leveling can be completed.
lAfter completing the auxiliary leveling, enter the automatic leveling【 】for automatic calibration.
lThe machine will enter the heating state:the nozzle is heated to 140°C, the hot bed is 60°C.(Please preset the hot bed temperature according
to the temperature of the consumables to achieve a more accurate leveling value.)
lAfter reaching the preset temperature: start the 121-point automatic calibration.
lAfter the leveling is completed, set the Z-axis compensation: place a piece of A4 paper between the nozzle and the printing platform.
Click the compensation value and push and pull the A4 paper to complete the compensation and leveling when friction is generated.
A4 paper
lClick the save icon to save.【 】
P1 P2 P3 P4
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ABC
Print Head Feeding C heck
1) First push the filaments to the bottom of the print head.
2) Click 【Prepare】 - 【Extrudert】, click 【Load】, the temperature of the
nozzle will be automatically heated to 200°C.
3) After the nozzle is preheated to 200°C, click the feed to extrude the filaments
from the nozzle.
4) Clean the melted filament of the nozzle before printing.
Model Test
Start prin ting
1) Insert the U disk into the printer's USB port.
2) Click【Print】 on the main menu and select the model file.
3) When the nozzle and the heatbed reach the preset temperature, the
X, Y, Z axis will return to zero, and then start printing.
The nozzle is too
close to the
platform, resulting
in insufficient
extrusion.
The extrusion volume
and distance between
the nozzle and the
platform is proper
with uniform adhesion.
The nozzle is too far from
the platform and the
adhesion is insufficient, the
model may fall off the
platform during printing.
Notice: Consumables with different hardness have different requirements
for the spring strength. The spring strength of the extruder can be adjusted
with an Allen wrench. When turning counterclockwise, the spring strength
is increased, and the spring strength is decreased clockwise.
Notice: When printing the test model, please observe the first layer
printing. In cases A and C, the compensation settings are not
properly adjusted. Compensation adjustments can be made during
printing to adjust the distance between the nozzle and the platform.
In case B, the nozzle and the platform have reached a proper
printing distance and can continue printing.
2.0
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①
②
③
As shown in the p icture:
When fine-tuning, please switch the moving distance to
0.01mm or 0.1mm to prevent the nozzle from extruding the
platform excessively or filament hanging in the air.
Resume Printing Description
Power Loss Recovery: If you want to continue printing because of a sudden power outage or accidentally turn
off the power of the machine, this function does not need to be set manually. When the printer is reconnected to
the power supply and turned on, just click resume to continue. (Please note that the PEI platform has a better
adhesion effect when it is heated, but it will cool down if the power is turned off for too long, causing the model
fall off easily, and the resume printing cannot be completed.)
Filaments Detection: This function is to remind the user to replace the filaments before continuing printing
when the model is half-printed, which effectively prevents the model from being scrapped due to insufficient
consumables.
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Software Installation
Our slice software is modifi ed form Cu ra open s ource sl ice softw are, in orde r to bette r
match with our com pany's mach ines for p rinting and m eet the n eeds of o ur custom ers.
Tip: Copy the data in the U disk to the computer for saving.
The software installation steps are as follows:
Open the attached U disk file and select the path \ Software and Software Drivers folder \ ELEGOO Software folder \
Double-click the ELEGOO-Cura application to install it.
Follow the prompts in the installation process to the next step.
Finally, select the corresponding model of our company as shown below to complete the settings.
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Instructions for Use
① Scroll the middle mouse wheel to zoom the
viewpoint, and hold down the middle wheel to
move the platform position.
② Press and hold the right mouse button to
move the mouse to change the viewpoint.
③ Click the right mouse button will bring up a
pop-up selection.
Other oper ation tips ：
Model setting：When printing multiple models, you
can configure individual slice settings for the
specified model.
Support sturcture interception：You can set the
intercept region on the model so that the set region
does not generate support structure.
Move
Zoom
Rotate
Mirror image
Model setting
Support structure
interception
Import model
Preview image function
Preview image function: Gcode files saved in
TFT file format can use to preview the model
image in the selection file on the printer,
which can identify the printed file more
visually.
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