M 400-4

The M 400-4 is a DMLS 3D printer from EOS with a 400 x 400 x 400 mm build volume.

Specifications

The EOS M 400-4 is an industrial Direct Metal Laser Sintering (DMLS) 3D printer. Because it utilizes a laser powder bed fusion (LPBF) process rather than FDM (Fused Deposition Modeling) plastic extrusion, several of the standard FDM technical specifications (like hotends and nozzles) do not apply to this machine.

Here is the verification of the requested technical specifications based on the sources:

• Hotend & Nozzles: Not applicable. Instead of a hotend or nozzles, the EOS M 400-4 uses four precise 400-watt Yb-fiber lasers .

Calibration

The calibration steps you are asking for: such as e-steps, flow rate, PID tuning, and retraction: apply to desktop FDM (Fused Deposition Modeling) filament 3D printers .

The EOS M 400-4 is an industrial Direct Metal Laser Sintering (DMLS) system. It does not use plastic filament or a heated nozzle; instead, it uses four 400-watt Yb-fiber lasers to melt microscopic layers of metal powder (such as titanium, aluminum, and stainless steel) within a 400 x 400 x 400 mm build volume .

Common defects

Here are the defects, bugs, weak points, and failures associated with the EOS M 400-4 and its monitoring software (EOSTATE Exposure OT), along with compatibility, End of Life (EOL), and recall information based on the provided sources.

Defects, Bugs, and Failures

1. IPC Hard Shutdown

• Symptom: The Integrated Personal Computer (IPC) experiences an abrupt hard shutdown .
• Cause: A defective Uninterruptible Power Supply (UPS) in the EOS M 400-4 .