The Elegoo Mars 4 Ultra 9K is a high‑resolution MSLA resin 3D‑printer equipped with a 7‑inch monochrome LCD and a 9K pixel matrix, enabling sharp surface detail and stable curing performance across the entire build area. Its 9K pixel density and high optical uniformity improve surface consistency on small engineering features and dental geometries. Its optical system delivers high irradiance, short exposure times and predictable layer formation, making it suitable for engineering parts, dental models and functional prototypes. This page provides validated resin settings, exposure parameters and workflow guidance for the Mars 4 Ultra 9K. For a complete overview of all Liqcreate materials and cross‑printer compatibility, visit the resin parameter database.
The Mars 4 Ultra 9K is part of the broader Mars 4‑series, which includes the Elegoo Mars 4, Elegoo Mars 4 DLP and Elegoo Mars 4 Max. Each model uses a different optical engine—ranging from monochrome LCD to DLP projection— and therefore requires its own resin settings and exposure behavior. You can access the resin parameters for these related printers through their dedicated pages.
If you need assistance with resin settings, calibration or workflow optimization for the Mars 4 Ultra 9K or any other resin‑based 3D‑printer, our engineering team is available through the Liqcreate support page.
Elegoo Mars 4 Ultra 9K resin 3D‑printing parameters
| Resin | Layer thickness | Exposure time (seconds) | Base layer count | Base layer exposure | Lift Height | Off-time / bottom layer (s) | Lift speed / retract speed (mm/min) |
| Wax Castable | 50 µm | 4,85 | 5 | 40 | 6 | 2,0 | 90 / 90 |
| Bio-Med Clear | 100 µm | 5,0 | 3 | 80 | 6 | 2,0 | 90 / 120 |
| Strong-X | 50 µm | 8,5 | 2 | 60 | 5 | 90 / 120 | 2,0 |
| Composite-X | 50 µm | 6,0 | 2 | 40 | 6 | 90 / 120 | 2,0 |
| Gingiva Mask | 100 µm | 10,0 | 2 | 20 | 10 | 2,0 | 60 / 90 |
| 50 µm | 8,0 | 2 | 20 | 10 | 2,0 | 60 / 90 |
All exposure profiles for the Elegoo Mars 4 Ultra 9K were validated using standard Liqcreate workflows. Soft and flexible materials such as Gingiva Mask, Flexible‑X and Elastomer‑X require heavy or extra‑heavy supports due to their low modulus and mechanical behavior.
About the Elegoo Mars 4 Ultra 9K resin 3D‑printer
Image by Elegoo: Their new Elegoo Mars 4 Ultra – A 9K resin 3D-printer
Elegoo Mars 4 Ultra 9K resin 3D‑printer specifications
The specifications below outline the core hardware, optical components and mechanical features of the Elegoo Mars 4 Ultra 9K, providing a technical overview relevant for exposure behavior, resin performance and workflow stability.
- – Product model: Elegoo Mars 4 Ultra 9K
- – LCD panel: 7‑inch 9K monochrome LCD
- – Slicer software: ChituBox
- – Technology: MSLA (masked stereolithography)
- – Layer thickness: 0.01–0.2 mm
- – XY resolution: 0.018 mm (8520 × 4320 pixels)
- – Build volume: 153.36 × 77.76 × 165 mm
- – Light source: Integrated 405 nm UV light engine
- – Connectivity: USB
- – Weight: 7 kg (15.43 lbs)
- – Printer dimensions: 22.7 × 22.7 × 44.35 cm
→ Back to the Elegoo Mars‑series resin overview
Additional resources
For deeper insight into how optical resolution, layer formation and high‑precision MSLA behavior affect print stability on Elegoo Mars printers, the following technical articles provide series‑wide guidance:
- – How resin behavior changes between 4K and 9K Mars printers
- – When to adjust layer thickness on Mars‑series printers
- – How to fine‑tune exposure settings on Elegoo Mars printer
Support
For assistance with resin parameters, exposure tuning or workflow optimization on the Elegoo Mars series or any other resin‑based 3D‑printer, our engineering team is available through the Liqcreate support page.
Support
Do you need any help with 3D printing our SLA, DLP or LCD resins? We can help you! Just look for the question you have below. If you can’t find it, let us know by contacting us!
