M 290

The M 290 is a DMLS 3D printer from EOS with a 250 x 250 x 325 mm build volume.

Specifications

Here are the technical specifications for the EOS M 290 based on the provided sources:

• Build volume: 250 x 250 x 325 mm (9.8 x 9.8 x 12.8 in), with the height including the build plate .
• Hotend: As a Direct Metal Laser Sintering (DMLS) 3D printer, it does not use a traditional hotend. Instead, it is equipped with a 400 W Yb-fiber laser [2, 5-7].
• Bed: It features a heated build platform, which consumes up to 3.2 kW of power during heating [2, 8, 9].
• Chamber: The process chamber operates under an inert atmosphere, utilizing either nitrogen or argon gas [10, 11].

Calibration

It is important to clarify that the EOS M 290 is an industrial Direct Metal Laser Sintering (DMLS) 3D printer that uses a 400W Yb-fiber laser to fuse metal powders (like Titanium, Aluminum, and Stainless Steel) [1, 2]. Because it does not use plastic filament, standard FDM/FFF calibration steps like E-steps, Flow Rate, or Retraction do not physically apply to this machine .

Common defects

Failure: Part Swelling and Recoater Blade Collision

• Symptom: The printed part swells and catches on the recoater blade, or a rolled "bead" of molten material forms on the surface, ultimately causing the build job to crash [1, 2].
• Cause: Inadequate support structures fail to draw heat out of the build, leading to thermal stress and overheating [1, 3].