3D Systems SLS 300

The 3D Systems SLS 300 is an SLS 3D printer from 3D Systems with a 300 x 300 x 300 mm build volume.

Specifications

3D Systems SLS 300: Technical Specifications

Technology and Laser Source

The SLS 300 uses a CO₂ laser at 10.6 µm wavelength, typical for polymer powder sintering. The system is a direct descendant of the Wematter Gravity platform developed in Sweden with a focus on accessibility and ease of use.

Build Volume

The base SLS 300 model offers a build volume of 300 × 300 × 150 mm; the SLS 300 Plus extends the Z-axis to the full 300 mm at a build speed of 12 mm/h.

Platform and Footprint.

Calibration

Calibration Protocol: SLS 300

• Chamber warm-up: Allow the system to reach full thermal stabilization (~170 °C for PA12) before loading powder. Premature build start causes uneven sintering in the first layers.
• Laser power calibration: Sinter standard test coupons (20×20×4 mm) and inspect for density and surface morphology. If porosity is present, increase power by 5% and repeat.

3.

Common defects

Common Defects and Solutions, SLS 300

Warping, Flat parts curl after extraction from the powder cake. Cause: too-rapid cooling or high recycled powder content with degraded flowability. Fix: extend the cooling cycle; reduce refresh rate; orient critical flat faces at 45°.

Porosity: Cross-sections show voids or insufficient density. Cause: low energy density or moist powder. Fix: re-run laser calibration; store powder in sealed containers with desiccant.

What it is used for

Applications, SLS 300

Best suited for:

• R&D prototyping directly in an office environment, the unique advantage is installation without a dedicated facility.
• Educational labs: Deep Space monitoring and straightforward operation are ideal for teaching environments.