The Saturn 4 Ultra is an LCD 3D printer from Elegoo with a 219 x 123 x 220 mm build volume.
The Saturn 4 Ultra is an LCD 3D printer from Elegoo with a 219 x 123 x 220 mm build volume.
The Elegoo Saturn 4 Ultra is an MSLA (resin) 3D printer, which means it uses liquid resin and UV light rather than melting plastic filament . Because of this, FDM-specific calibrations like E-steps, Flow Rate, PID, Retraction, and Pressure Advance do not apply to this machine [2, 3].
Instead, resin printing requires calibrating exposure times, rest times, and leveling. Here is the step-by-step calibration guide tailored to the Saturn 4 Ultra's specific mechanics:
Here is a comprehensive list of defects, bugs, weak points, and failures reported for the Elegoo Saturn 4 Ultra (and its 16K variant), based on the provided sources.
Defects & Hardware Failures
1. Premature LCD Failure / Pressure Damage
| Manufacturer | Elegoo |
|---|---|
| Technology | LCD |
| Class | hobby |
| Build volume | 219 x 123 x 220 mm |
| Layer height | 25-200 µm |
| Enclosure | passive |
| Auto levelling | no |
| Price | 430 EUR |
| Compatible materials | castable-resin, flex-resin, high-temp-resin, standard-resin, tough-resin, water-wash-resin |
| Price (EUR) | 380 |
|---|---|
| Date | 2026-06 |
| Note | Reference price in EUR from the EduFacturing database; verify with the retailer. |
| Manufacturer | Elegoo |
|---|---|
| Technology | LCD |
| Class | hobby |
| Build volume | 219 x 123 x 220 mm |
| Layer height | 25-200 µm |
| Auto levelling | no |
same class and kinematics, close in price within 30 percent
| Model | Class | Build volume | Price (EUR) |
|---|---|---|---|
| Saturn 4 Ultra (this) | hobby | 219 x 123 x 220 mm | 380 |
| HALOT-MAGE | hobby | 228 x 128 x 230 mm | 380 |
| Photon Mono M5s | hobby | 218 x 123 x 200 mm | 370 |
| Saturn 4 Ultra 12K | hobby | 219 x 123 x 220 mm | 399 |
| Material |
|---|
| Castable Resin |
| Flexible Resin |
| High-Temp Resin |
| Standard Resin |
| Tough Resin |
| Water-Washable Resin |