FormUp 350 Evolution

The FormUp 350 Evolution is an SLM 3D printer from AddUp with a 350 x 350 x 1000 mm build volume.

Specifications

AddUp FormUp 350 Evolution: Technical Overview

Laser System

Four lasers rated up to 4500 W each (~1070 nm Yb fiber), delivering a total potential power of 18 kW. The unique 3-axis scanner system allows each laser to address any point on the 350×350 mm build platform, maintaining a constant spot diameter across the full surface: overcoming the edge defocus inherent in conventional 2-axis galvo systems.

Platform and Build Volume

Build envelope 350 × 350 × 1000 mm: 185% larger than the base FormUp 350. The extractable build chamber allows immediate transfer to a depowdering station after completion without atmospheric exposure.

Protective Atmosphere.

Calibration

Calibration Protocol: FormUp 350 Evolution

3D Scanner Calibration

Before each production campaign (and after optics replacement), use AddUp Manager with a calibration plate to verify XY positional accuracy (< ±0.05 mm) and Z accuracy (< ±0.1 mm/m). The 3-axis system requires a full spatial correction matrix: not just a 2D correction.

Powder Bed Parameters

Set layer thickness (20–100 µm), recoating speed, and powder spread based on the powder D50.

Common defects

Common Defects: LPBF Metal (FormUp 350 Evolution)

Porosity

Two types: gas porosity (from absorbed gas in powder) and keyhole porosity (from excessive VED). Solution: optimise VED; use low-moisture powder; HIP treatment for critical aerospace parts.

Hot Cracking

Typical in superalloys with a wide solidification range (IN738). Solution: preheat platform to 200–500°C; optimise scan strategy; post-print heat treatment (T6, HT).

Delamination

Insufficient inter-layer bonding.

What it is used for

Use Cases: FormUp 350 Evolution

Aerospace Structural Elements

Monolithic spars, ribs, and bulkheads for aerospace structures without welds: meeting AS9100/NADCAP requirements. The 1-metre Z-travel is unique in the market segment.

Rocket Engines and Combustion Chambers.