3D Printing InfoPrinter comparison
ELEGOO Centauri Carbon vs ELEGOO Neptune 3 Pro
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore ELEGOO Centauri Carbon comparisonsMore ELEGOO Neptune 3 Pro comparisons
| Property | ELEGOO Centauri CarbonCOREXY | ELEGOO Neptune 3 ProBEDSLINGER |
|---|---|---|
| Identity | ||
| Brand | ELEGOO | ELEGOO |
| Class | COREXY | BEDSLINGER |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | ELEGOO Centauri Carbon[1] | ELEGOO Neptune 3 Pro[2] |
| Release date (announcement and actual shipping) | Listed on the ELEGOO US store from 17 February 2025 (Shopify publish date)[3] | Listed on the ELEGOO US store from 11 November 2022 (Shopify publish date)[4] |
| Street price (USD; dated snapshot per entry) | $419.99 on us.elegoo.com, Aug 2026, with the compare-at price also $419.99 (no discount running)[3] | $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] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Superseded by the Centauri Carbon 2, which raises the nozzle ceiling to 350 C and swaps the nano mineral crystal filter for a HEPA plus coconut-shell carbon stack, adds clog detection, a smart exhaust grille and part-cooling-fan drop detection. The non-carbon Centauri and Centauri 2 are open-frame-oriented machines with a different filament list. Machine size 398 x 404 x 490 mm is shared with the Centauri 2, so body dimensions alone will not identify the model[6][7][1] | 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[2][8][9] |
| Market position: superseded? successor announced? | Superseded within ELEGOO's own line-up: the US store's Centauri section in Aug 2026 lists the Centauri Carbon 2 Combo, Centauri 2 Combo, Centauri Carbon 2 and an emoji collaboration edition[9] | Superseded by the Neptune 4 series and, in ELEGOO's current marketing, by the Centauri line[9] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 256 x 256 x 256 mm; printing platform 260 x 260 mm[1] | 225 x 225 x 280 mm; printing platform 235 x 235 mm[2] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 398 x 404 x 490 mm[1] | 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[2][8] |
| Net weight (kg) | 17.5 kg net, 21 kg gross[1] | 8.1 kg net, 10.15 kg gross[2] |
| Frame construction & material | Integrated die-cast aluminium construction, which ELEGOO credits for reduced vibration at speed[1] | CNC-machined aluminium extrusion frame (Neptune family)[8] |
| Enclosure: open / enclosed; panel material; door/lid | Fully enclosed with a tempered glass door and top cover; a nano mineral crystal air filter, an auxiliary part-cooling fan and a chamber temperature regulator fan are fitted[1] | Open frame, no enclosure[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY[1] | Cartesian i3 bed-slinger[2] |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | Three lead screws with three linear guide rods[1] | Two lead screws[2] |
| Belts (type, width, e.g. Gates?) | Semi-automatic belt tensioner[1] | Not documented |
| Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?) | "Silent Drive (All Axes)" is all that is published; no driver part number is given[1] | "Silent Drive (All Axes)"; no driver part number published[2] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | 500 mm/s or less, with 250 mm/s given by ELEGOO as the recommended speed[1] | 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[2] |
| Recommended/typical print speed | 250 mm/s recommended printing speed (manufacturer figure)[1] | 60 mm/s recommended printing speed (manufacturer figure)[2] |
| Max acceleration (claimed, mm/s²) | 20000 mm/s2 maximum acceleration; default acceleration 10000 mm/s2[1] | Not documented |
| Max volumetric flow claimed (mm³/s) | 32 mm3/s claimed flow rate (manufacturer figure; no test conditions published)[1] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | Dual-gear direct extruder with one fan[1] | Dual-gear direct extruder with 2 fans[2] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Brass-hardened steel nozzle, 0.4 mm, with a titanium-alloy heat break; a heatbed nozzle wiper cleans it before each print[1] | Brass nozzle, 0.4 mm, titanium-alloy heat break[2] |
| Max nozzle temp claimed AND firmware max temp limit (both values) | 320 C claimed max nozzle temperature (the Centauri Carbon 2 raises this to 350 C)[1][6] | 260 C claimed max nozzle temperature - 40 C below the Neptune 4 series[2][8] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 110 C max heated bed temperature at 25 C ambient[1] | 100 C max heated bed temperature at 25 C ambient[2] |
| Bed surface (material, texture, coating), single/double-sided | Dual-sided spring steel sheet - textured PEI on one face, a PLA-specific surface on the other[1] | PEI spring steel sheet[2] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | 121-point auto-levelling with full-auto calibration[1] | 36-point auto-levelling (the Neptune 4 family moved to 121 points)[2][10] |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament run-out sensor, auto filament unloading, power-loss recovery and fan self-check; no clog detection on this model (the Centauri Carbon 2 adds it)[1][6] | Filament run-out sensor and power-loss recovery[2] |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Part cooling plus an auxiliary part-cooling fan and a chamber temperature regulator fan, with real-time fan self-checks[1] | Not documented |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | ELEGOO describes it only as a "Powerful Self-Developed Motherboard"; no board model or MCU is published[1] | Not documented |
| Total rated power draw | 1100 W at 220 V, 350 W at 110 V rated; 24 V output; 100-240 VAC input[1] | 300 W rated power, 24 V output[2] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | ELEGOO OS with OTA updates; 8 GB of on-board storage. ElegooSlicer recommended, with Orca and Cura supported[1] | Marlin - ELEGOO names the system "Marlin" for the Neptune 3 Pro, against "Klipper" for the whole Neptune 4 family[2][10] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 4.3-inch colour capacitive touch screen[1] | 4.3-inch colour capacitive touch screen[2] |
| On-device UI capabilities (model preview, per-object controls, etc.) | Colour touch UI; LED chamber lighting fitted; OTA firmware updates[1] | Colour capacitive touch UI; ElegooSlicer recommended, Orca and Cura supported[2] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | USB and dual-band Wi-Fi for LAN transfers[1] | TF (microSD) card and USB cable only - no LAN and no Wi-Fi[2] |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Chamber camera fitted, with real-time monitoring and time-lapse; dual built-in LED strips[1] | Not documented |
| Materials Support | ||
| Officially supported filament list | Carbon/glass fibre reinforced filaments, PLA, PETG, ABS, ASA, TPU, PET, PC, PA[1] | PLA, TPU, PETG, ABS, ASA - no Nylon, unlike the Neptune 4 family[2][8] |
| Noise & Power Consumption | ||
| Noise: claimed dB and independently measured dB (distance/method) | Operating sound published as 55 dB or less - a manufacturer figure with no distance or method stated, so not comparable with an independently measured dB reading[1] | Operating sound published as 48 dB or less - a manufacturer figure with no distance or method 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[11] | 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[11] |
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
- ELEGOO Centauri Carbon product page (full specification table) us.elegoo.com · 2026-08 · vendor
- 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
- ELEGOO Centauri Carbon Shopify product JSON (price and store publish date) us.elegoo.com · 2026-08 · vendor
- ELEGOO Neptune 3 Pro Shopify product JSON (price and store publish date) us.elegoo.com · 2026-08 · vendor
- ELEGOO Neptune 4 Shopify product JSON (variant prices and store publish date) us.elegoo.com · 2026-08 · vendor
- ELEGOO Centauri Carbon 2 product page (Centauri Carbon 2 vs Centauri Carbon side-by-side table) us.elegoo.com · 2026-08 · vendor
- ELEGOO Centauri 2 product page (Centauri 2 Combo vs Centauri 2 side-by-side specification table) us.elegoo.com · 2026-08 · vendor
- ELEGOO Neptune 4 product page (Specification table) us.elegoo.com · 2026-08 · vendor
- ELEGOO US store 3D printers collection (current line-up, Aug 2026) us.elegoo.com · 2026-08 · vendor
- ELEGOO Neptune 4 Plus product page (full specification table) us.elegoo.com · 2026-08 · vendor
- ELEGOO Refund & Warranty policy (warranty period table) us.elegoo.com · 2026-08 · vendor