South Korean metal 3D printing manufacturer Ohsung System Co., Ltd. has announced the novel GAUSS MT90 metal paste 3D printer at CES 2026, where the system was recognized with a CES Innovation Award 2026.
Unlike standard systems using lasers, powder beds, or binder spraying, the MT90 operates with paste based metal extrusion (PME), in which metal powder is formulated into a paste and extruded through a nozzle at room temperature. This shifts several practical constraints away from loose powder handling and high-energy heat sources, placing more of the process inside a closed, controlled desktop machine rather than a dedicated industrial setup.
Additionally, the 3D printer manufacturer has appointed MetalPrinting as its domestic distributor and sales partner in Korea.
How the GAUSS MT90 paste metal AM system works
As detailed by the manufacturer, material for the machine comes in sealed syringe type cartridges, which are slotted into the printer and swapped when needed. That cartridge approach allows different metals to be used on the same system without the cleanup routines normally associated with powder handling.
Additionally, the material lineup includes stainless steel, copper, titanium, iron, nickel, aluminum, tungsten, and custom formulations. Once a part is printed, it still has to go through a separate sintering step, where the metal particles are fused into a solid part.
Physically, the MT90 is aimed at the desktop category. It has a maximum build volume of 85 × 85 × 60 mm, a machine size of 420 × 420 × 500 mm, and a listed weight of 30 kg. Nozzle diameters range from 0.2 to 1.4 mm, which allows the same machine to be configured either for smaller, more detailed parts or for faster material deposition.
Operation is handled through a 7-inch touchscreen and a guided workflow that steps through loading material, checking viscosity, and starting the print. The printer also uses a color coded status light system and includes features such as an Auto Bed Detach System and a Quick Start Mode, both covered by PCT patent filings.
One of the stated goals of the MT90 is to make metal 3D printing more compatible with ordinary workspaces. The company lists operating noise at about 40 dB, roughly in the range of common office or residential background noise, and the system is equipped with a built-in HEPA carbon filter.
The intent is to allow the machine to run in environments where conventional powder bed fusion (PBF) or binder jet systems would typically require additional safety infrastructure.
In terms of applications, Ohsung System Co., Ltd. is positioning the MT90 for small functional parts rather than large structural components. For instance, the system is suitable for heat sinks and thermal management parts, porous structures and catalyst supports, micro scale mechanical components, and small medical or electronic parts.
The 3D printer is also aimed at prototyping and research use, where material changes are frequent and batch sizes are limited.
Technical specifications and pricing of GAUSS MT90 3D printer
To learn about pricing and additional details, interested readers can contact Ohsung System Co., Ltd. or visit the official website.
| Product Name | Gauss MT90 |
| Printing Method | Paste-based Metal Extrusion (OME) |
| Material Type | GaussInk (paste metal ink) |
| Nozzle Size | 0.2 – 1.4 mm (PCO) |
| Machine Size | 420 x 420 x 500 mm |
| Model Name | OS3DMT3090 |
| Layer Resolution | 0.15 – 0.5 mm |
| Support Material | Stainless Steel, Steel, Copper, Titanium, Iron, etc. |
| Synringe Capacity | 30 ml |
| File format | STL/G-code, etc. |
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Featured image shows the GAUSS MT90 desktop paste metal 3D printer. Photo via Ohsung System Co., Ltd.
