ELEGOO Jupiter 2 vs Neptune 4 Max: Resin or FDM — Which Large-Format Printer Do You Actually Need?
3D Printer Buyers Guide
ELEGOO Jupiter 2 vs Neptune 4 Max: Resin or FDM — Which Large-Format Printer Do You Actually Need?
The Jupiter 2 (R25,900) is a large-format resin printer. The Neptune 4 Max (R10,480) is a large-format FDM printer. They are different technologies, not competing versions of the same machine — and the decision between them is not about size or price. It is about what you are printing and what quality level your application requires.
The Neptune 4 Max is an FDM printer — it builds objects from molten filament, layer by layer, in a 500×500×500mm build volume. It is best for large functional parts, cosplay props, production runs of practical objects, and anything where size matters more than fine surface detail. The Jupiter 2 is a resin printer — it cures liquid photopolymer with UV light in a 218×123×220mm build volume and produces surface detail and precision that FDM cannot match. It is best for jewellery casting models, miniatures, dental models, and prototypes where finish quality is paramount. Both are in stock at Toner and Ink Somerset West — we run both technologies in our print service and can show you exactly what each produces before you buy.
Last updated: September 2026
What is the fundamental difference between the Jupiter 2 and the Neptune 4 Max?
These are not two sizes of the same type of machine. They use entirely different printing technologies, produce output with different characteristics, and require different post-processing workflows. Comparing them on price alone misses the point — the question is which technology is right for what you want to print.
FDM prints by melting plastic filament and depositing it layer by layer through a heated nozzle. The layers are visible on the finished object — typically 0.1–0.3mm layer height — giving FDM prints a characteristic ribbed texture on curved and angled surfaces. Layer lines can be sanded or filled for a smoother finish, but it requires post-processing effort.
Build volume: 500×500×500mm. The largest build volume of any printer in the ELEGOO consumer range. Prints large functional objects in a single run without splitting and joining.
The Jupiter 2 is a large-format MSLA resin printer. It cures liquid photopolymer resin using a UV LCD screen that exposes entire layers simultaneously — every layer cures at once regardless of complexity, which means print time is determined by layer count and height, not by the amount of detail per layer. The result is surface resolution measured in microns — far finer than any FDM printer can achieve.
Build volume: 218×123×220mm. Significantly smaller than the Neptune 4 Max — resin printers are not large-format machines in the same sense as large FDM printers. The Jupiter 2 is "large" for a resin printer. Compared to an FDM machine, its build volume is modest.
Key specs compared
| Neptune 4 Max (FDM) | Jupiter 2 (Resin) | |
|---|---|---|
| Technology | FDM (filament) | MSLA (liquid resin + UV) |
| Price | R10,480 | R25,900 |
| Build volume | 500×500×500mm | 218×123×220mm |
| Surface resolution | 0.1–0.3mm layer height (visible layer lines) | Micron-level (smooth, near-invisible layers) |
| Consumable | PLA, PETG, ABS, ASA, TPU filament | Liquid photopolymer resin |
| Post-processing | Remove from bed, remove supports | Wash in IPA, UV cure — gloves and ventilation required |
| Safety requirements | Minimal — standard ventilation | Nitrile gloves, ventilation, UV curing station, proper disposal |
| Best for | Large objects, functional parts, production volume | Fine detail, casting models, miniatures, dental, prototypes |
What is the Neptune 4 Max best at?
The Neptune 4 Max's 500×500×500mm build volume is the defining characteristic. No FDM printer in the ELEGOO consumer range prints larger. This makes it the right choice for any application where physical size matters more than surface perfection:
- Large cosplay armour and prop components — chest plates, helmet shells, shield panels, and weapon parts that can be printed as single pieces without splitting and joining
- Functional replacement parts and brackets — PETG or ABS parts that need to be mechanically strong and dimensionally accurate at scale
- Production batches of medium-sized objects — printing 20 identical 100×100mm objects simultaneously across the full plate
- Architectural and terrain models — large-scale terrain sections, building models, and landscape pieces for tabletop gaming or architectural presentations
- Signage, display elements, and branded inserts — large custom lettering, product display stands, and packaging inserts where size is the priority
What is the Jupiter 2 best at?
The Jupiter 2 is for applications where surface quality and fine detail are the primary requirement — not size. Its 218×123×220mm build volume is modest, but what it produces within that volume is categorically different from anything an FDM printer can achieve:
- Jewellery casting models — wax-replacement casting patterns for lost-wax gold and silver casting. The surface resolution is finer than hand-carved wax and the turnaround is hours, not days. This is one of the most commercially significant resin printing applications in South Africa's jewellery industry.
- Tabletop gaming miniatures — character models, monster figures, terrain details, and scatter terrain at 28–32mm scale where surface detail at this size is visible and matters to collectors and players
- Dental and medical models — study models, surgical guides, and orthodontic models using biocompatible dental resins. The accuracy required for dental applications is achievable only with resin, not FDM.
- High-detail prototypes for client presentations — product design prototypes where the surface finish needs to communicate the final product's quality, not a rough approximation of it
- Figurines, collectibles, and display pieces — detailed character art, scale models, and collector pieces where FDM layer lines would detract from the final appearance
The decision framework — which one do you actually need?
| Your application | Right choice | Reason |
|---|---|---|
| Large cosplay props or armour above 200mm | Neptune 4 Max | Build volume, strength of FDM materials, no post-processing chemical handling |
| Jewellery casting models for lost-wax casting | Jupiter 2 | FDM cannot produce the surface resolution required for casting — resin only |
| Functional replacement parts and brackets | Neptune 4 Max | FDM materials (PETG, ABS) are tougher and more impact-resistant than standard resin |
| Tabletop gaming miniatures at 28–32mm scale | Jupiter 2 | FDM layer lines are unacceptable at miniature scale — resin is the standard for this application |
| Large terrain and architectural models | Neptune 4 Max | Size requirements exceed the Jupiter 2's build volume |
| Product prototypes for client review | Depends on size and finish requirement | Under 218mm and finish-critical: Jupiter 2. Above 218mm or finish not critical: Neptune 4 Max |
| First 3D printer — exploring the hobby | Neptune 4 Max | FDM is simpler to start with — no chemical handling, faster iteration, lower material cost |
Can you use our print service to test which technology suits your application before buying?
Yes — and this is exactly what we recommend for anyone deciding between resin and FDM for a specific application. Toner and Ink runs both FDM print-on-demand (Neptune 4 Pro and Neptune 4 Max) and resin print-on-demand (ELEGOO Saturn 4 Ultra 16K) from our Somerset West showroom.
Send us your file or a description of what you need — we'll print it in both technologies if the geometry allows, and you can physically compare the output before committing to a machine purchase. The cost of two test prints is a small price to be certain you're buying the right technology for your work.
Not sure which technology your application needs? WhatsApp us at 082 232 2782 with a photo or description of what you want to print. We'll tell you straight — FDM or resin, and which machine — before you spend a rand on hardware.
Both the Jupiter 2 and Neptune 4 Max are in stock at Toner and Ink Somerset West. Come see them running side by side — or use our print service to test your application in both technologies before you buy.
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