3D Printing InfoPrinter comparison
ELEGOO Neptune 3 Pro vs Positron V3.2
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore ELEGOO Neptune 3 Pro comparisonsMore Positron V3.2 comparisons
| Property | ELEGOO Neptune 3 ProBEDSLINGER | Positron V3.2COREXY |
|---|---|---|
| Identity | ||
| Brand | ELEGOO | Positron3D |
| Class | BEDSLINGER | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | ELEGOO Neptune 3 Pro[1] | LDO Positron v3.2 3D Printer Kit, revision v3.2 Rev A[2] |
| Release date (announcement and actual shipping) | Listed on the ELEGOO US store from 11 November 2022 (Shopify publish date)[3] | 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[3][4] | Not documented |
| 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][5][6] | The defining trait is the inverted geometry: the print head is below the bed and the machine prints upside down. Sold as a self-assembly kit; the complete printed-parts set is a separate purchase. A hard storage case is included[2] |
| Market position: superseded? successor announced? | Superseded by the Neptune 4 series and, in ELEGOO's current marketing, by the Centauri line[6] | Not documented |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 225 x 225 x 280 mm; printing platform 235 x 235 mm[1] | 180 x 180 x 165 mm[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][5] | 200 x 200 x 70 mm folded, 200 x 200 x 270 mm unfolded[2] |
| Net weight (kg) | 8.1 kg net, 10.15 kg gross[1] | 3 kg net; 5.5 kg with the hard case[2] |
| Frame construction & material | CNC-machined aluminium extrusion frame (Neptune family)[5] | Folding frame designed to fit in a filament box; supplied with a black hard case[2] |
| Enclosure: open / enclosed; panel material; door/lid | Open frame, no enclosure[1] | Open frame[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | Cartesian i3 bed-slinger[1] | CoreXY, inverted — the machine prints upside down[2] |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | Two 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] | 250 mm/s maximum print speed (manufacturer claim)[2] |
| Recommended/typical print speed | 60 mm/s recommended printing speed (manufacturer figure)[1] | Not documented |
| Max acceleration (claimed, mm/s²) | Not documented | 8,000 mm/s2 (manufacturer claim)[2] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Dual-gear direct extruder with 2 fans[1] | Bowden-style, single extrusion[2] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Brass nozzle, 0.4 mm, titanium-alloy heat break[1] | PS plated-copper nozzle, 0.4 mm[2] |
| 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][5] | 260 °C maximum (manufacturer claim)[2] |
| Stock nozzle material (brass / hardened steel / plated copper / composite tip) | Not documented | Plated copper[2] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | 100 C max heated bed temperature at 25 C ambient[1] | 85 °C maximum bed temperature — the lowest in this group, and the reason the material list stops at PETG[2] |
| Bed surface (material, texture, coating), single/double-sided | PEI spring steel sheet[1] | Heated removable ITO glass bed[2] |
| 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][7] | Not documented |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Filament run-out sensor and power-loss recovery[1] | Not documented |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | Not documented | LDO Positron mainboard[2] |
| PSU (brand, wattage, rail voltage) | Not documented | DC 24 V, 200 W[2] |
| Total rated power draw | 300 W rated power, 24 V output[1] | Not documented |
| 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][7] | Klipper[2] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 4.3-inch colour capacitive touch screen[1] | 3.5-inch LCD touchscreen[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-drive | TF (microSD) card and USB cable only - no LAN and no Wi-Fi[1] | Wi-Fi, USB, Ethernet[2] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Not documented | Self-assembly kit, manufactured in China[2] |
| Materials Support | ||
| Officially supported filament list | PLA, TPU, PETG, ABS, ASA - no Nylon, unlike the Neptune 4 family[1][5] | PLA and PETG only, per the manufacturer[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] | Not documented |
| 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[8] | 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
- 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
- LDO Positron v3.2 3D Printer Kit matterhackers.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 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