3D Printing Info

Printer comparison

ELEGOO Neptune 3 Pro vs Snapmaker J1s

Compare hardware, build volume, printing specifications, dated prices and sources.

2 selected · all documented properties

ELEGOO Neptune 3 Pro vs Snapmaker J1s — documented properties and sources
PropertyELEGOO Neptune 3 ProBEDSLINGERSnapmaker J1sIDEX
Identity
BrandELEGOOSnapmaker
ClassBEDSLINGERIDEX
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)ELEGOO Neptune 3 Pro[1]Snapmaker J1S High Speed IDEX 3D Printer[2][3]
Release date (announcement and actual shipping)Listed on the ELEGOO US store from 11 November 2022 (Shopify publish date)[4]Not documented
Street price (USD; dated snapshot per entry)$259.99 on us.elegoo.com, Aug 2026, with the compare-at price also $259.99 - notably more than the newer and far faster Neptune 4 at $219[4][5]$1,399.00 at MatterHackers, listed as currently unavailable with a pre-order option quoting roughly 5 weeks, checked Aug 2026[2]
Variants & sibling models — and how to tell them apart (spec-contamination risk)The last Neptune 3 still listed; the 3 Plus and 3 Max are gone from the store's Neptune section. Do not read Neptune 4 figures onto it: the 3 Pro runs Marlin, not Klipper, tops out at 180 mm/s rather than 500, uses a 36-point mesh rather than 121-point, and its nozzle stops at 260 C rather than 300 C. Its machine size, 475 x 445 x 515 mm, is identical to the Neptune 4's, so body dimensions will not tell them apart[1][6][7]The J1s differs from the original J1 by an additional part-cooling fan. Usable volume depends on the print mode: 300 x 200 x 200 mm in default and backup modes, 160 x 200 x 200 in copy mode, 150 x 200 x 200 in mirror mode[2][3]
Market position: superseded? successor announced?Superseded by the Neptune 4 series and, in ELEGOO's current marketing, by the Centauri line[7]Not documented
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable225 x 225 x 280 mm; printing platform 235 x 235 mm[1]300 x 200 x 200 mm in default and backup modes[2]
Machine footprint (mm) & clearance needed (cable/spool overhang)475 x 445 x 515 mm - the same body as the Neptune 4. ELEGOO's maximum size for machine activity is 475 x 580 x 725 mm[1][6]539 x 401 x 464 mm[2]
Net weight (kg)8.1 kg net, 10.15 kg gross[1]25 kg net[2]
Frame construction & materialCNC-machined aluminium extrusion frame (Neptune family)[6]Aluminium-alloy frame with one-piece die casting and linear rails; Snapmaker quotes rail repeatability of +/-0.03 mm in X/Y and +/-0.02 mm in Z[3]
Enclosure: open / enclosed; panel material; door/lidOpen frame, no enclosure[1]Not documented
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)Cartesian i3 bed-slinger[1]IDEX — two independently driven extruders[2][3]
X-axis guide type (rods / linear rails / V-wheels; size)Not documentedLinear rails[3]
Z-axis: leadscrew count & type, sync mechanism, anti-backlashTwo lead screws[1]Not documented
Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?)"Silent Drive (All Axes)"; no driver part number published[1]Not documented
Speed & Acceleration
Max print speed (claimed, mm/s)30-180 mm/s, with 60 mm/s given by ELEGOO as the recommended speed - a pre-Klipper machine, and the slowest in this file apart from the OrangeStorm Giga[1]350 mm/s maximum (manufacturer claim)[3]
Recommended/typical print speed60 mm/s recommended printing speed (manufacturer figure)[1]Not documented
Max acceleration (claimed, mm/s²)Not documented10,000 mm/s2 maximum (manufacturer claim)[3]
Extruder
Type (direct drive / bowden) & design nameDual-gear direct extruder with 2 fans[1]Not documented
Hotend & Nozzle
Hotend design (proprietary/standard; quick-swap mechanism?)Brass nozzle, 0.4 mm, titanium-alloy heat break[1]Not documented
Max nozzle temp claimed AND firmware max temp limit (both values)260 C claimed max nozzle temperature - 40 C below the Neptune 4 series[1][6]300 °C maximum (manufacturer claim)[2][3]
Heated Bed & Surface
Max bed temp claimed AND firmware limit100 C max heated bed temperature at 25 C ambient[1]100 °C maximum (manufacturer claim)[2]
Bed surface (material, texture, coating), single/double-sidedPEI spring steel sheet[1]Custom dual-sided PEI glass plate: glossy glass on one face, PEI coating on the other[2][3]
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)36-point auto-levelling (the Neptune 4 family moved to 121 points)[1][8]3-point bed levelling, which Snapmaker contrasts with 9-16 point systems; assisted calibration quoted at about 10 minutes[3]
Filament Handling & Detection
Filament runout sensor (type, location)Filament run-out sensor and power-loss recovery[1]Not documented
Electronics & Power
Host computer (SoC, RAM, storage) if firmware runs on embedded LinuxNot documented1 GB RAM, 8 GB eMMC; the 5-inch display runs Android[2]
Input voltage (110/220 V, switch or auto)Not documentedAC 100-240 V, 50/60 Hz, 4.4 A max input; DC 24 V, 400 W max output[2]
Total rated power draw300 W rated power, 24 V output[1]400 W maximum output[2]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Marlin - ELEGOO names the system "Marlin" for the Neptune 3 Pro, against "Klipper" for the whole Neptune 4 family[1][8]Not named by Snapmaker; the supplied slicer is Luban, with third-party software supported[2]
Connectivity, UI & Camera
Display: size, type, touch?4.3-inch colour capacitive touch screen[1]5-inch Android display, 1280 x 720[2]
On-device UI capabilities (model preview, per-object controls, etc.)Colour capacitive touch UI; ElegooSlicer recommended, Orca and Cura supported[1]Not documented
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveTF (microSD) card and USB cable only - no LAN and no Wi-Fi[1]Wi-Fi, USB cable, USB flash drive[2]
Materials Support
Officially supported filament listPLA, TPU, PETG, ABS, ASA - no Nylon, unlike the Neptune 4 family[1][6]PLA, ABS, HIPS, PC, TPU, TPE, PETG, ASA, PP, PVA, PA, PA-GF, PA-CF[2]
Noise & Power Consumption
Noise: claimed dB and independently measured dB (distance/method)Operating sound published as 48 dB or less - a manufacturer figure with no distance or method stated[1]Less than 50 dBA claimed by the manufacturer. No independent measurement; distance and method not stated[2]
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)12 months on brand-new machines and parts, but ELEGOO's own table excludes a long list of parts from that: PEI plate / build plate / nozzle kit / PTFE tube / heater / thermistor / hot end / packaging / manual / tools carry no warranty at all, and the extruder, extruder kit and printhead kit get 6 months. Certified pre-owned machines carry no warranty[9]Not documented

Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.

Sources for this comparison

  1. ELEGOO compare-products page, which embeds the full per-model specification JSON for every Neptune, Centauri and OrangeStorm machine us.elegoo.com · 2026-08 · vendor
  2. Snapmaker J1S High Speed IDEX 3D Printer listing matterhackers.com · 2026-08 · vendor
  3. Snapmaker J1s product page snapmaker.com · 2026-08 · vendor
  4. ELEGOO Neptune 3 Pro Shopify product JSON (price and store publish date) us.elegoo.com · 2026-08 · vendor
  5. ELEGOO Neptune 4 Shopify product JSON (variant prices and store publish date) us.elegoo.com · 2026-08 · vendor
  6. ELEGOO Neptune 4 product page (Specification table) us.elegoo.com · 2026-08 · vendor
  7. ELEGOO US store 3D printers collection (current line-up, Aug 2026) us.elegoo.com · 2026-08 · vendor
  8. ELEGOO Neptune 4 Plus product page (full specification table) us.elegoo.com · 2026-08 · vendor
  9. ELEGOO Refund & Warranty policy (warranty period table) us.elegoo.com · 2026-08 · vendor