FAQs and Facts for the Elegoo Neptune 4 Series 3D Printer http://neptune4.help:8000/ 2026-05-18T10:13:44+00:00 http://neptune4.help:8000/ http://neptune4.help:8000/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2025-09-18T03:04:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=adaptive_bed_mesh&rev=1758164668&do=diff Adpative Bed Mesh about Read Me First: In order to understand adaptive bed meshes, it's first helpful to understand the bed mesh in general. ---------- Klipper allows not just for n x m sized bed meshes that cover the full bed, it also allows for bed meshes of an arbitrary size, including adaptive to the size of the object(s) being printed. text/html 2025-09-14T05:39:00+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=aligning_the_gantry&rev=1757828340&do=diff Gantry Alignment tuning setup about The gantry forms the X axis for the printer's head. It needs to be square to the frame or the height of the head will be different at one side than the other. This is often noticeable in the bed mesh map. If the gantry isn't level it also can cause part knocks and print failures. text/html 2025-12-10T16:57:20+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=bed_leveling_vs_the_bed_mesh&rev=1765385840&do=diff Bed Leveling vs the Bed Mesh articles Do not conflate functions of bed leveling with the bed mesh, they are two distinct and unrelated concepts. The bed is level when its Z plane is orthogonal to the X and Y planes. The bed screws control and define the position of the plane. You will recall from basic geometry that three or more points form a plane, and moving the bed screws align each of the points of the bed to be of equal distance from the print head. text/html 2026-01-28T18:33:40+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=bed_leveling&rev=1769625220&do=diff Bed Leveling setup What does it mean for the bed to be "Level"? Bed leveling, also know as “tramming” does not refer to the bed being level to the ground. Think about this is terms of geometry. The printer's bed is level when its z plane is orthogonal to the printer's x and y planes. text/html 2025-12-02T01:57:11+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=bed_mesh&rev=1764640631&do=diff Bed Mesh about The bed mesh is a probed map of the surface of the bed plate, normally automated and with a z probe, that describes how flat (not how level) the surface of the bed is above the level z-plane. It's a map of the hills and valleys decribing the warpage of build surface. The bed mesh variance, shown above is what we care about, as it should be less than 2x our layer height for best results. (Yet Klipper can normally compensate for a lot more.) text/html 2026-01-20T18:06:00+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=blob_of_death&rev=1768932360&do=diff Blob of Death about What is the "blob of death"? This is the colloquial term for when the extruded filament builds up around the hot end in a huge blob. What causes the blob of death? This is always caused by conditions created through owner/operator error. text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=blog&rev=1757820704&do=diff Neptune4.help Blog ---------- ---------- text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=buy_me_a_coffee&rev=1757820704&do=diff text/html 2025-10-17T03:02:48+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=cant_move_head_or_plate_motors_on&rev=1760670168&do=diff Why can't I move the print head or build plate? faq Answer: The motors are on. Explanation: In addition to moving the head, bed and gantry, the motor also lock the head, bed or gantry to the controlled positioned. How to disable to power off motors text/html 2025-12-03T23:55:30+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=cleaning_the_bed_plate&rev=1764806130&do=diff Cleaning the Bed Plate articles about The bed plate must be kept clean to assure good adherence of the filament for your first layer. Clean your bed plate by washing with dish soap (Dawn with its grease cutters works exceptionally well) and hot water and let air dry before returning to the bed. An occasional scrub using a clean ScotchBrite pad can help remove surface build up and oxidation of the PEI textured coating as well a residual PLA sugars. text/html 2025-09-14T06:50:30+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=connect_the_printer_to_your_network&rev=1757832630&do=diff Connecting your printer to the network setup Your Klipper based printer boasts a rich GUI for control and operations, supporting robust workflows. It features a web based GUI called Fluidd. This requires the printer to be connected to your local network. The simplest and most reliable way to connect is using the included Ethernet port. Alternatively follow Elegoo's instructions to connect to the WiFi for those models which feature built in WiFi. Alternatively use a ethernet to WiFi bridge or… text/html 2025-09-14T08:56:58+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=console&rev=1757840218&do=diff Console about By the console we mean the Klipper console, like as exposed by Fluidd. See <https://docs.fluidd.xyz/features/console> for more information, features, and documentation. text/html 2025-09-14T06:08:56+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=dimensional_accuracy_compensation&rev=1757830136&do=diff Orca Dimensional Accuracy Compensation about Orca Docs: <https://github.com/SoftFever/OrcaSlicer/wiki/tolerance-calib> BambuLabs Wiki: <https://wiki.bambulab.com/en/software/bambu-studio/xy-hole-contour-compensation> <https://www.obico.io/blog/tolerance-test-in-orcaslicer-a-comprehensive-guide/> From: u/hotellonely on Reddit is this great concise explanation: [Imagine] in your model, you have 2x holes with 1mm diameter, and their distance between their centroid should be 10mm. You also ha… text/html 2026-02-16T03:25:42+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=drying_filament&rev=1771212342&do=diff Drying Filament <https://help.prusa3d.com/article/drying-filament_332086> text/html 2025-09-14T04:50:02+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=faq&rev=1757825402&do=diff Neptune 4 Frequently Asked Questions text/html 2026-01-17T22:00:48+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=filament_profile&rev=1768687248&do=diff Filament Profiles about Overview Not all filaments are the same. This should be self-evident given different plastic materials, such as PLA, PETG, TPU, ABS, ASA, and PA, yet not all materials are the same either. PLA itself has numerous variants, so called plus, high speed, high temperature, silk, matte, glow in the dark, all behave very differently from one another as materials. PLA itself has rather wide latitude for its characteristics, which is what makes it so desirable for printing. Eve… text/html 2025-10-04T05:00:22+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=first_layer_adhesion&rev=1759554022&do=diff Why can't I get a good first layer? Why won't my prints stick to the bed? faq Answer: Usually a combination of the following factors: Dirty Plate Clean the Bed Plate Bad Z Offset Read about How to set the z offset Bed Not Level Level the bed with the SCREWS_TILT_CALCULATE First layer speeds too fast Try slowing down to 30mm/s. text/html 2025-11-05T23:46:37+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=first_time_setup&rev=1762386397&do=diff Setting Up Your Neptune 4 Printer For The First Time ... or if you'd like to walk back through the process articles Before anything familiarize yourself with these Resources * Unbox and assemble your printer * Connect your printer to your local network * A word about printer.cfg * Tune Z Probe configuration to improve accuracy and speed * Tune stepper motor configurations for accuracy & noise * Tune the extruder rotational distance * Level the gantry * A word about bed_leve… text/html 2025-11-25T05:22:12+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=fluidd&rev=1764048132&do=diff Fluidd about Klipper based printers make use of a distributed architecture for command and control of operations and the hardware. User interfaces communicate and deliver instructions via APIs. Additionally the N4 series has an ancillary microcontroller side screen that's not part of the printer and communicates back with the klipper systems via a tty serial port connection. This is a crude a rudimentary UI. Meanwhile Klipper offers multiple GUIs, including a web based text/html 2025-10-16T16:27:11+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=food_safe&rev=1760632031&do=diff Food Safe Prints? faq article Are there materials that I can print with that are food safe? Can I use my 3D prints for use with food items? Answer: No. While the materials that you use to print with might generally be food safe (e.g. PETG), the resulting prints are not advised for use or contact with food. text/html 2025-11-28T22:12:34+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=fragments&rev=1764367954&do=diff fragments for tips wip why reliability matters for three dee printing just ask the owner with a blog of death * downtime to repair * failed print as print size / process complexity increases so does chance for failure Is it possible to install a better bed leveling sensor text/html 2025-10-07T17:00:23+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=gcode&rev=1759856423&do=diff gcode wip about ...work in progress... See <https://www.klipper3d.org/G-Codes.html> for the complete set of Klipper gcode commands. Your slicer takes a CAD model and “slices” it into layers, outputting the instructions, as gcode, necessary to control the printer to print each layer. These gcode instructions specify tool path movements and control all operations. text/html 2026-01-08T00:45:03+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=glue&rev=1767833103&do=diff Glue about Glue is used as a separation layer to prevent prints from bonding to the PEI build plate. It’s used to provide a layer between the plate and print so that the print doesn’t attach to the PEI and allow’s the print to release more easily. Some PET and more exotic materials adhere too well to PEI and require glue or they can get permanently stuck to the plate. Textured PEI offers an order of magnitude more grip and adherence to PLA than glue which is unnecessary and often indicates a … text/html 2025-12-06T08:04:25+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=good_bad_z_offset&rev=1765008265&do=diff Good and Bad Z Offset In The Wild humor articles <https://www.instagram.com/reel/DR3tbqdAJJ2/?igsh=MjlmNXc3ZWRyYnIy> text/html 2025-09-14T06:26:24+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=good_retraction_settings&rev=1757831184&do=diff What are good retraction settings? faq Answer: 0.8mm retraction at 55mm/s with 0.6mm of spiral z-hop. Spiral z-hop requires Orca Slicer and that gcode arcs are enabled both on the printer in printer.cfg and in Orca. Enable retratcion on layer change and moves over certain lengths. text/html 2025-09-14T06:06:09+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=how_should_i_clean_the_bed&rev=1757829969&do=diff How should I clean the bed? faq Answer: Wash with dish soap and hot water. Air Dry. NO alcohol. Discussion See Cleaning the Bed Plate for complete discussion. text/html 2025-10-08T16:18:39+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=how_should_i_set_the_z_offset_to_adjust_nozzle_height&rev=1759940319&do=diff How should I set the Z Offset to adjust nozzle height? faq z_offset Answer: The best method is by observation for the proper filament squish while baby steps adjusting the z offset value during a test first layer print. Discussion: Filament Squish? Huh? (work in progress.. in the mean time see text/html 2025-10-04T04:48:30+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=important_changes&rev=1759553310&do=diff Important Changes faq Klipper 20230201 The [bed_mesh] module no longer loads the default profile on startup. It is recommended that users who use the default profile add BED_MESH_PROFILE LOAD=default to their START_PRINT' macro (or to their slicer's “ text/html 2026-02-26T00:42:17+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=infill&rev=1772066537&do=diff Infill about Orca Docs on Infill and Strength Demonstrates patterns and discusses strengths and weaknesses of various infill. <https://github.com/OrcaSlicer/OrcaSlicer/wiki/strength_settings_patterns> text/html 2025-09-14T05:58:27+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=inspect_bed_mesh&rev=1757829507&do=diff Bed Mesh Inspection setup tuning bed_mesh Run a full bed mesh to map how flat the surface is above and below the level of plane. Rather than using this for compensation, we'll use a full bed mesh in this step to visualize warpage on the plate and evaluate not the bed level, but how warped the bed surface might be. This warpage can become overly pronounced and undesirable if the bed screw tension is to high, for example, and by inspection we can make adjustments that can improve the warpage, re… text/html 2025-09-14T06:36:11+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=klipper&rev=1757831771&do=diff Klipper about Klipper is the Open Source 'firmware' ecosystem that controls the printer. It's designed to make use of small systems and SoCs as linux hosts that run its series of distributed applications and services which APIs, UIs and connects to one or more microcontrollers. This replaces the Marlin firmware style systems that used to be prevalent for 3D printer control and greatly improves in the following areas: text/html 2025-11-25T05:39:55+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=layer_height_compostion&rev=1764049195&do=diff Layer Height Composition about articles z_offset text/html 2025-10-09T06:21:43+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=level_screen_numbers&rev=1759990903&do=diff What do the numbers on the Level screen tell me? faq Answer Nothing useful. Discussion This is the Level dashboard of the Screen. What are the numbers? Heater Temps At the very top of the screen here we see the current/set temperature values for the extruder and the bed. These are set normally through your gcode when you print yet they could have been set manually. In this case while the value of 60C for the bed is adequate for printing PLA the value for the extruder is below tempera… text/html 2025-12-04T03:54:09+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=macros&rev=1764820449&do=diff What are Klipper Macros? faq about articles ...work in progress... Macros are small programs or functions written in Klipper gcode. They're defined in printer.cfg (or files that it includes) and are loaded when Klipper performs a soft or hard restart (RESTART or FIRMWARE_RESTART respectively), which reads printer.cfg. text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=neptune_4_max&rev=1757820704&do=diff Neptune 4 Max text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=neptune_4_plus&rev=1757820704&do=diff Neptune 4 Plus text/html 2025-09-14T07:56:21+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=neptune_4_pro&rev=1757836581&do=diff Neptune 4 Pro text/html 2025-09-14T07:56:05+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=neptune_4&rev=1757836565&do=diff Neptune 4 text/html 2025-12-02T02:33:15+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=nozzle_replacement&rev=1764642795&do=diff Nozzle Replacement faq about How to replace the nozzle Elegoo has a Nozzle Replacement Video that demonstrates the proper process that carefully avoids potential causes of damage. When to replace the nozzle Generally nozzles are changed when worn. Clogged nozzle can normally be heater to a higher temp and flushed. When the flow ratio needs adjusted further downwards is an indicator the nozzle is wearing. It also could be changed after repeated printing with highly abrasive materials such a… text/html 2026-01-13T23:01:25+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=nozzle_types&rev=1768345285&do=diff Nozzle Types What different types of nozzles are there? Why and when would you want to use them? What's the "best" nozzle? about faq Overview Typically nozzles are made of brass, and these are the nozzles that ship with the printer. Brass offers excellent thermal characteristics; it heats quickly and maintains temperature well while transferring heat. This makes it efficient. It's also cheap and easy to produce. It suffers however from being very soft and wears easily, even text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=openneptune&rev=1757820704&do=diff OpenNeptune about text/html 2026-01-14T05:00:30+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=orca_calibrations&rev=1768366830&do=diff Orca Calibration tuning setup about resources Proper calibration of the Filament Profile is essential for good prints. Orca slicer has several built in calibration tests to assist in determining the specific profile values. Specifically you should calibrate for each of your filaments: text/html 2026-02-06T20:42:53+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=orca_slicer&rev=1770410573&do=diff Orca Slicer about See: <https://github.com/SoftFever/OrcaSlicer> and <https://www.orcaslicer.com/> Ocra is a powerful, modern and Open Source, community driven slicer that can produce native Klipper gcode for the Neptune 4. It offers advanced built in calibration tools, precision control of walls and seams (including scarf seams), sandwich mode walls, polyholes, a wide variety of infill patterns (including those optimized for high speed printers like the Neptune 4), mouse ears, adaptive bed… text/html 2026-02-02T15:51:03+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=part_knocks_shifts&rev=1770047463&do=diff What causes parts to be knocked off or shift on the bed plate? faq articles Normally this is caused by a combination of the following issues: Bad gcode Z Offset A poor gcode z offset results in poor bed and layer adhesion and can cause the part to separate or move on the plate, resulting in the part shifting to getting knocked off the plate. text/html 2025-11-07T03:19:23+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=pid_tuning&rev=1762485563&do=diff PID Tuning about Klipper uses a PID algorithm to maintain consistent heat for heaters like the nozzle and bed. These should be tuned initially and retuned any time the nozzle, hot end, thermistor, or heater element is changed. Klipper Docs Calibrate PID Settings Wikipedia on PID text/html 2026-02-18T22:42:20+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=pom&rev=1771454540&do=diff POM? What's that? faq Delrin, or POM (an abbreviation for PolyOxyMethalate), is the material from which your X and Y axis wheels are made of on your Neptune 4 (excepting the Pro model, which uses linear rails.) POM is a low friction plastic, with high wearability, and is impervious to most oils and solvents making it an excellent choice. text/html 2025-11-08T23:02:46+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=pressure_adavance&rev=1762642966&do=diff Pressure Advance about An easy explanation of Pressure Advance (also known as Linear Advance in Prusa firmware) can be found in the opening to this article introducing the feature by Prusa Research: "Linear Advance (LA) is a technology that predicts the pressure build-up in the extruder when printing at higher speeds. The firmware of the printer uses that prediction to decrease the amount of filament extruded just before stopping and decelerating, which prevents blobs or artifacts at the s… text/html 2025-11-04T07:03:58+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=print_start_macro&rev=1762239838&do=diff PRINT_START Macro about wip ...work in progress... See Print Start Workflows for an example of a recommended PRINT_START macro for the N4 series. NOTE: In initial versions of Klipper that shipped as part of Elegoo's firmware distributions the PRINT_START macro was called automatically as part of the start of a new print. A latter version of Klipper changed this behavior. This meant that owners who relied on that behavior often experienced issues like the bed mesh not loading or other expect… text/html 2025-11-19T08:19:47+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=print_start_workflows&rev=1763540387&do=diff Print Start Workflows articles setup about One way (slicer side and slicer machine start print gcode), or another (Klipper side and PRINT_START macro), there's certain steps we need to take to start printing the gcode that's slice from an object. There's reasons and rationale for why you'd place certain actions where. text/html 2025-09-14T07:12:02+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=printer_setup_articles&rev=1757833922&do=diff Printer Setup Articles text/html 2025-10-07T09:29:45+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=printer.cfg&rev=1759829385&do=diff printer.cfg File about setup The printer.cfg file is where Klipper stores its permanent configuration settings for the printer. It is described in the Klipper documentation, Configuration Reference, which details the structure and settings in detail. There you will find what each configuration setting for Klipper does and what options and parameters are available. text/html 2025-10-08T18:19:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=probe_calibration&rev=1759947572&do=diff Z Probe Calibration wip z_offset setup ...work in progress... See <https://www.klipper3d.org/Probe_Calibrate.html> for details on probe calibration. Note: calibrating the z probe is NOT the same as setting the gcode z offset. Also Note: the “z offset” set as part of probe calibration is not the “gcode z offset text/html 2025-11-08T23:07:43+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=purge_filament&rev=1762643263&do=diff A Purge Filament Macro gcode setup about The following is based on a 0.4mm nozzle [gcode_macro PURGE] description: purge filament gcode: ; ; simply purges enough filament to flush the tool ; G90 ; absolute positioning mode G28 ; home G1 Z10 F300 ; raise Z by 10 to be safe G1 X67.5 Y0 F6000 ; move to start of purge line G1 Z0 F300 ; drop nozzle to plate surface M109 S220 ; heat extruder and wait G92 E0 ; reset extruder G1 X67.5 Y0 Z0.4 F300 ; move to start xyz position G1 X167.5 E… text/html 2025-09-20T20:22:01+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=quickstart_guide&rev=1758399721&do=diff Elegoo Quick Start Guide & Assembly Instructions setup resources User Manual for Neptune 4 3D Printer <https://www.elegoo.com/blogs/3d-printer-user-guide/a-quick-start-guide-with-elegoo-3d-printer-fdm-3d-printers> Tutorial Video of Printer Assembly * Neptune 4 text/html 2026-01-26T16:58:18+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=resources&rev=1769446698&do=diff Resources resources A collection of online resources all Neptune 4 owners should be familiar with. Tools Elegoo includes most all the basic tools you need to assemble and maintain the printer. Consider purchasing the following: * digital calipers * machinist square Elegoo The Neptune 4 Wiki Elegoo's YouTube Videos Users Manual's text/html 2025-09-14T06:05:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=reverting_firmware&rev=1757829928&do=diff How can you revert the printer firmware back to the original state? faq Anser: You can use the OpenNeptune project's restore images for the software and the whole eMMC. See <https://github.com/OpenNeptune3D/OpenNept4une/wiki/Reverting-back-to-Original-Elegoo-Firmware-&-Software> text/html 2025-10-07T09:56:20+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=run_a_full_bed_mesh&rev=1759830980&do=diff Run a full bed mesh setup Run a full bed mesh with BED_MESH_CALIBRATE PROFILE=FULL_MESH PROBE_COUNT=9,9 to generate a mesh of reasonable density and sped balance. We just need a rough idea of how flat ( not level) the bed is warped. We'll use this in the next setup step text/html 2025-11-05T23:34:13+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=run_bed_mesh&rev=1762385653&do=diff How to run a Bed Mesh faq articles setup Defining the Bed Mesh We have to have the bed mesh parameter's defined before running a bed mesh. They are stored in printer.cfg Example for Neptune 4 and Neptune 4 Pro: [bed_mesh] mesh_min:10,21 mesh_max:210,211 probe_count: 9,9 algorithm:bicubic bicubic_tension:0.2 mesh_pps: 4, 4 split_delta_z: 0.020 fade_start: 4 fade_end: 12 text/html 2025-09-14T04:54:02+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=running_screws_tilt_calculate&rev=1757825642&do=diff Level the bed by running SCREWS_TILT_CALCULATE setup For instructions on running SCREWS_TILT_CALCULATE read these klipper docs and you can watch this video for an overview of the process. Target having a total variance of less than 4 minutes across all of the bed screws when leveling, with a variance on each bed screw 0 or 1 minute being ideal. text/html 2025-09-14T08:04:58+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=screen&rev=1757837098&do=diff The Screen controller about The Neptune 4 has side mounted detachable handheld Screen. It’s an ancillary microcontroller, and not part of the printer itself, that can send and receive commands and information to and from the printer using a serial tty port and some proprietary Elegoo software. It features a touch sensitive display screen as its control interface. text/html 2026-01-28T18:40:03+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=screws_tilt_calculate_example&rev=1769625603&do=diff SCREWS_TILT_CALCULATE example howto setup article Execution is from the console and a “SCREWS_TILT_CALCULATE” button will appear as part of the Tool pane of Fluidd's main dashboard as well once the [SCREWS_TILT_ADJUST]] stanza is defined in printer.cfg configuring the bed screw points. See the article text/html 2026-01-28T18:42:30+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=screws_tilt_calculate&rev=1769625750&do=diff SCREWS_TILT_CALCULATE about IMPORTANT: You MUST always execute a G28 before using this command. SCREWS_TILT_CALCULATE [DIRECTION=CW|CCW] [MAX_DEVIATION=<value>] [HORIZONTAL_MOVE_Z=<value>] [<probe_parameter>=<value>] Invokes the Klipper native bed screws adjustment tool. It will command the nozzle to different locations (as defined by the [SCREWS_TILT_ADJUST] stanza in text/html 2025-09-14T09:19:41+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=setup_articles&rev=1757841581&do=diff Setup Articles text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=setupblog&rev=1757820704&do=diff Neptune4 Setup Blog ---------- text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=should_level_bed_warm_cold&rev=1757820704&do=diff Should you level the bed warm or cold? Answer: The Klipper documentation calls for the bed to be leveled cold, and provides explanations and for how to determine thermal expansion if it's a concern. This is covered at <https://www.klipper3d.org/Bed_Level.html> text/html 2025-09-14T04:51:13+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=should_update_firmware&rev=1757825473&do=diff Should you update the firmware? faq Answer: No. Discussion: It's not necessary. It will not resolve any printing issues you're having with your prints. There are no beneficial software changes or fixes for the printer itself. The more recent updates actually purposefully break a key text/html 2025-09-18T03:17:07+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=sidebar&rev=1758165427&do=diff Index * Welcome * See a list of Resources * First Time Printer Setup * Frequently Asked Questions * Setup Articles * Show Support * Buy me a coffee * Donate Articles About... FAQ text/html 2025-09-20T00:02:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=silicone_spacers&rev=1758326548&do=diff Silicone Spacers about ...work in progress... You can replace the bed screw springs with silicone spacers that will hold the position and bed tension better than the springs which often loosen under vibration. They run about $12 and can be found on Amazon, AliExpress and other resellers. Search for text/html 2025-09-18T03:15:33+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=slicer&rev=1758165333&do=diff What is a Slicer? faq The Neptune 4 is a FDM [fused deposition modeling] or FFF [fused filament fabrication] printer, meaning it builds up the print layer by layer. In order to print an object we use software to “slice” it into layers of drawn patterns made from the extruder that combine (fuse) together to form the finished part. text/html 2025-12-04T03:45:07+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=swapped_nozzle_toolhead_after&rev=1764819907&do=diff What do I need to do after swapping my nozzle, hot end or toolhead? faq setup After swapping the nozzle, hot end or toolhead the printer geometry and ofter factors will be different and require certain recalibrations: Swapped Nozzle This assumes swapping for identical nozzle, not nozzle materials or model/manufacturers, otherwise follow Nozzle + Hot End instructions. text/html 2025-09-14T05:47:08+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=taglist&rev=1757828828&do=diff Tag List text/html 2026-02-07T04:06:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=thumbnails&rev=1770437192&do=diff Thumbnails faq article about Select ColPic for format of g-code thumbnails. Some versions of Moonraker in the Elegoo distributed firmware distributions have issues displaying thubnails on the side microcontroller Display and/or in Fluidd. Sometimes this is seen using Orca when Cura may work when using as the slicer. These issues are related to what thumbnail formats are included by the slicer and which are configured in Moonraker. text/html 2025-10-08T18:22:56+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=tips_better_first_layers&rev=1759947776&do=diff Tips for better first layers articles faq It is critically important to get the first layer of the print right, When the first layer is not the best it can be then it can lead to complete failure, parts detaching, and warping. There are several techniques and recommendations one can heed in order to minimize the chance of this happening. text/html 2026-01-14T05:23:05+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=tune_extruder_rotational_distance&rev=1768368185&do=diff Tuning Extruder Rotational Distance setup tuning An accurate extruder rotational distance tuned for your specific extruder head is critical, if off so will all of Klippers extrusion calculations. This should be done before other tuning and calibrations relating to extruding filament. text/html 2025-10-06T14:10:37+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=tune_probe_configurations&rev=1759759837&do=diff Tuning the Z Probe configuration setup articles The default parameters from Klipper, as well as the Elegoo distributed settings, allow for a lot of error and inaccuracy from the z probe. We can improve on this in terms of performance and accuracy. Tune your z probe stanza in printer.cfg to improve probe accuracy by decreasing samples_tolerance. Its Klipper default is 0.100mm meaning you’re accepting probe results that are off by hundreds of microns while the probe is precise with readings be… text/html 2025-09-14T03:51:52+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=tune_stepper_configurations&rev=1757821912&do=diff Tune stepper motor configurations for accuracy & noise Add or update the following lines in the stanzas shown (leaving other lines in existing stanzas.) [stepper_x] microsteps: 64 [stepper_y] microsteps:64 [stepper_z] microsteps: 32 [tmc2209 stepper_x] interpolate: False [tmc2209 stepper_y] interpolate: False [tmc2209 stepper_z] interpolate: False stealthchop_threshold: 120 [exclude_object] # make sure stanza exists yet can be empty [gcode_arcs] resolution: 0.1 text/html 2025-10-04T00:34:16+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=unbox_and_assemble_your_printer&rev=1759538056&do=diff Unboxing and Assembly setup The printer is assembled at the factory, tested, and partially disassembled for shipment. Follow the included Elegoo instructions for inboxing and assembly. They provide a YouTube Video which is good to follow for the first two parts, up to the 5:38 mark. (We will divert from Elegoo's Quick Start setup process in favor of more accurate and reliable methods.) When assembling, use a text/html 2026-01-23T00:12:25+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=understanding_the_gcode_z_offset&rev=1769127145&do=diff Understanding the gcode Z offset ...currently a work in progress... articles z_offset Good Further Reading * Ellis's Print Tuning Guide on First Layer "Squish" Related wholly to non-tangential squish General concepts of squish and non-tangential shape (wip) Generally speaking an otherwise uninfluenced extrusion from the nozzle will have a circular cross section. If an extruded line is placed next to another extruded line which each have a circular cross section they only tangentially… text/html 2026-02-07T03:53:37+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=welcome&rev=1770436417&do=diff Welcome Welcome to the Neptune 4 Help Wiki, devoted to FAQs and facts about the Elegoo Neptune 4 Series of 3D printers. Here you'll find answers to frequently asked questions, steps for printer setup, hints & tips, and information about the Neptune 4 Series. text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=where_can_i_find_further_resources&rev=1757820704&do=diff Where can I find further resources? faq Answer: See Resources text/html 2025-09-14T05:51:20+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=why_does_the_z_offset_drift_or_vary&rev=1757829080&do=diff Why does the Z Offset Drift, Vary or is Lost? faq z_offset Answer: Should it be saved? The value for the gcode z offset that fine adjusts layer height to properly shape the filament cross section is not saved in printer.cfg. The Elegoo ancillary screen has workflows that attempt to save it to a file yet this is not a standard Klipper practice and using other printer controls results in indeterministic results. text/html 2026-01-23T00:20:11+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=why_not_feeler_gauges&rev=1769127611&do=diff Why are feeler gauges a bad idea and in general just wooly thinking? faq When setting the z offset what's bad about using feeler gauges? Answer: Feeler gauges are a horrible idea for several reasons: * metal feeler gauges thermally change dimension text/html 2025-11-20T01:46:56+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=why_orca_slower_than_cura&rev=1763603216&do=diff Why is Orca slower than Cura? faq Issue: Users report that when they switch from slicing with Cura to slicing with Orca their prints take longer to print.. Answer: It's not. This is a user configuration issue. The filament profile Max Volumetric Flow Rate limits overall print speed, as calibration not present in Cura. The default filament profiles for default PLAs and other materials are set to the lowest common denominator to better assure reliable prints yet are normally set significa… text/html 2025-09-14T03:31:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=why_should_i_set_the_z_offset_to_adjust_nozzle_height&rev=1757820704&do=diff Why should I set the Z Offset to adjust nozzle height? faq z_offset Answer: It shapes (squishes) the extrusion so that it bonds better to the surface beneath and adjacent perimeters and infill. This improves adhesion and the strength of the print. It also is critical for getting a good first layer. text/html 2025-10-08T16:18:12+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=why_shouldn_t_the_z_offset_be_saved&rev=1759940292&do=diff Why shouldn't the z offset be saved? faq z_offset Wouldn't it make sense to have the printer save the z offset? It gets “lost” between RESTARTs and power cycling. Answer: For various different reasons the value isn't a consistent single value worth saving: text/html 2025-09-29T04:16:59+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=xyzzy&rev=1759119419&do=diff text/html 2025-11-25T05:51:45+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=z_offset&rev=1764049905&do=diff Z Offset z_offset about To be clear, this is a discussion about the gcode z offset, an adjustment to nozzle height from the plate. (It should not be conflated with the probe z offset.) The gcode z offset is set with the SET_GCODE_OFFSET klipper command and you should read its documentation, at text/html 2025-09-14T05:52:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=z_probe_configuration_tuning&rev=1757829148&do=diff Z Probe Configuration Tuning z_probe tuning setup The Neptune 4 Series of printers is equipped with a inductive sensor probe which can measure the position of the print head from the bed plate. Since it's and inductive probe it requires the metal bed plate to provide the inductance for the probe to sense. It's used for setting to set virtual z endstop, and if the plate isn't installed when the probe goes to home and set this position it will drive down into and gouge the magnetic bed material… text/html 2025-11-20T01:50:54+00:00 Anonymous (anonymous@undisclosed.example.com) http://neptune4.help:8000/doku.php?id=z_probe&rev=1763603454&do=diff z probe wip about The Neptune 4 is equipped with an inductive probe that triggers from the metal build plate and measures the distance from the probe to the plate which in turn is translated to a Z distance of the nozzle above the bed. Because of this operation without the plate or trying to use glass or garolite plates can result in nozzle crashes.