Quick Take
Choosing a resin-based system for industrial additive 3D printing usually means deciding between a complete high-precision printer and a component for an existing setup. These four products span that range: a dental-oriented 16K UV LCD printer, a new 16k UV SLA printer, a used large-format MSLA printer sold as-is for parts or repair, and a genuine Formlabs Form 4L resin mixer that is a replacement part rather than a standalone machine.
The ETERFANT model brings the highest price and the most detailed feature list; the UniFormation GK3 PRO is the new-condition middle tier; the Elegoo Saturn is the repair candidate; the Formlabs mixer is the low-cost maintenance part.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| ETERFANT Dental 16K Ultra High Precision UV LCD Resin 3D Printer | USD 1,631.99 | |
| UniFormation GK3 PRO 16k Resin 3D Printer | USD 863.99 | |
| Elegoo SATURN Large-Format MSLA Resin 3D Printer (PARTS or REPAIR) | USD 149.95 | |
| Formlabs Form 4L Resin Mixer | USD 49.99 |
Decision Matrix
| Use Case | Option | Why It Fits |
|---|---|---|
| Dental/lab-grade 16K precision | ETERFANT Dental 16K Pro | STL scanner compatibility, LAN/USB/WiFi, 0.025mm-0.1mm layer range |
| New 16k desktop SLA with industrial focus | UniFormation GK3 PRO | New condition, 385nm UV SLA, 16k resin printing |
| Large-format MSLA repair project | Elegoo Saturn 1st Gen | Largest maximum build envelope here, 28.5μm resolution, but as-is/for parts |
| Form 4L large-format SLA maintenance | Formlabs Form 4L Resin Mixer | New genuine replacement part for the Form 4L resin tank; not a full printer |
Product Notes
#### ETERFANT Dental 16K Ultra High Precision UV LCD Resin 3D Printer
This is the most complete package in the group when you need dental-style resolution and file compatibility. It combines a 16K UV LCD light engine with STL file support described as compatible with all scanners, plus LAN, USB, and WiFi data transfer options. The maximum print size of 211.68 x 118.37 x 240mm is smaller than the Elegoo Saturn's build volume, but the layer thickness range of 0.025mm to 0.1mm and the 15,120 x 6,230 pixel size point toward fine-detail work. The description also highlights constant-temperature control, power-off resume, air purification, and automatic resin recycling. The limitation is the price: it is significantly higher than every other product in this set, so it suits a dedicated production environment rather than a casual buyer.
#### UniFormation GK3 PRO 16k Resin 3D Printer
The UniFormation GK3 PRO is the middle-priced complete printer and one of only two full systems listed as new. It uses a 385nm UV SLA light source and carries a 16k resin printing designation, which puts it in the same high-resolution conversation as the ETERFANT at a more moderate price. The description focuses on precision engineering and a premium desktop experience, so you are choosing primarily on the advertised 16k resolution, 385nm UV SLA format, and new condition. If you want a current-generation new machine without the dental-specific extras, this is the option to compare against the ETERFANT. The main thing to weigh is the price gap between this unit and the two lower-priced items in the set.
#### Elegoo SATURN Large-Format MSLA Resin 3D Printer
The Elegoo Saturn first generation is the lowest-priced full printer here, but it is not sold as a ready-to-run machine. The title says "for parts or repair," and the description states that it has only been power-on tested, with no further evaluation and no other accessories provided. That makes it a project for someone who already has the components needed to bring it back to working order. On paper, it offers the largest maximum print size of the four: 218.88 x 123.12 x 250mm, with a maximum resolution of 28.5μm at 7680 x 4320px. It also lists adjustable layer thickness, adjustable print speed, touchscreen controls, and USB 2.0 interface. The limitation is the used/as-is condition: you are buying a repair platform, not a guarantee of finished prints.
#### Formlabs Form 4L Resin Mixer
The Formlabs Form 4L Resin Mixer is the only non-printer in the group and the lowest-priced item overall. It is listed as new, with type "resin mixer" and part number MXR-F4L-01-01, and it is described as a genuine replacement component designed for the Formlabs Form 4L resin tank. The intended job is to maintain consistent resin distribution and temperature uniformity during large-format SLA printing, which makes it a maintenance or repair part for an existing Form 4L setup. It will not print anything on its own and is not a full machine, so it only belongs in the cart if you own a compatible Formlabs Form 4L system or are sourcing parts for one. Its main advantage is the low entry price and new condition, but that value depends entirely on your need for the specific replacement part.
Final Recommendation by Use Case
- If you need dental-grade precision in a complete machine: The ETERFANT Dental 16K Pro is the highest-priced option at USD 1,631.99, and it is the only one in this set with scanner-compatible STL support, LAN/USB/WiFi transfer, and a 0.025mm-0.1mm layer range.
- If you want a new 16k SLA printer without the dental feature set: The UniFormation GK3 PRO at USD 863.99 is the middle tier and offers a 385nm UV SLA platform in new condition.
- If you are comfortable with a repair project and want the largest build envelope: The Elegoo Saturn first generation at USD 149.95 is the lowest-priced full printer, with a 218.88 x 123.12 x 250mm envelope and 28.5μm resolution, but the listing explicitly says parts or repair.
- If you own a Formlabs Form 4L and need a replacement mixer: The Formlabs Form 4L Resin Mixer at USD 49.99 is the cheapest item and is listed as a new genuine replacement part, but it is not a printer.
