Concept Laser Mlab cusing R

The Concept Laser Mlab cusing R is a DMLS 3D printer from Colibrium Additive with a 90 x 90 x 80 mm build volume.

Specifications

Concept Laser Mlab cusing R: Technical Specifications

Laser and Optics

Single 100 W ytterbium fiber laser with < 25 µm focus diameter: jewelry-grade weld precision. F-Theta scanning optics optimized for compact build areas (50×50, 70×70, or 90×90 mm).

Platform and Build Modules

Three interchangeable build modules minimize powder consumption for small batches or single parts. The 'drawer system' allows safe extraction of the module in an inert environment.

Chamber and Inert Gas

The 'R' (Reactive) variant features a hermetically sealed chamber with glove port for safe handling of reactive powders (Ti, Al) under argon atmosphere.

Calibration

Calibration of the Mlab cusing R

Build plate leveling: mechanical and software leveling against the recoater is mandatory at every build module change; parallelism < 50 µm required.

Laser verification: focus diameter ≤ 25 µm and output power ±2% verified by power meter and burn-spot test. Contaminated F-Theta lens is the most common cause of degraded focus.

O₂ inerting: purge with argon to O₂ ≤ 0.1% (Ti) / ≤ 0.5% (CoCr) before every reactive-material build.

Common defects

Common Defects and Corrections

Porosity: gas or unmelted-powder porosity from low volumetric energy density, elevated O₂, or damp powder. Fix: optimize VED parameters, maintain O₂ < 0.1%, dry powder.

Balling: disconnected melt pools at high scan speed or low power. Fix: reduce speed; increase power to the validated window.

Recoater streaking: uneven layer from a nicked or deformed blade. Fix: replace blade; resieve powder.

What it is used for

Use Cases

Dental (CoCr crowns and bridges): primary application; system is licensed for medical use and achieves density > 99.8%.

Jewelry (Au, Pt, Ag): sub-25 µm focus enables detail impossible by casting; interchangeable modules minimize precious metal waste.