TruPrint 1000

The TruPrint 1000 is an SLM 3D printer from TRUMPF with a 100 x 100 x 100 mm build volume.

Specifications

TRUMPF TruPrint 1000: Technical Overview

Technology and Laser Source

The TruPrint 1000 uses TRUMPF Laser Metal Fusion (LMF): TRUMPF's trade name for the LPBF/SLM process. The standard configuration features one or two 200 W TruFiber fiber lasers at 1,070 nm with a galvanometer scanner and f-theta optics. The laser spot is focused to approximately 55 µm for maximum detail or 80 µm for higher throughput.

Build Volume and Platform

The build space is cylindrical: Ø 100 × 100 mm: an atypical form for metal LPBF, optimized for small parts with rotational symmetry (dental crowns, rings, wheels).

Calibration

Calibrating the TruPrint 1000

• Substrate plate leveling: Before every new cycle, mechanically verify each loaded plate with a dial indicator. Tolerance: deviation < 20 µm across the diagonal. Tip: In multi-plate mode, level them in production order: an error on plate #2 can block automatic advancement.
• Scanner and laser focus calibration: Use the TRUMPF standard calibration plate (target plate) to verify spot position and diameter.

Common defects

Common Defects on the TruPrint 1000 (LMF/LPBF)

Spherical Porosity (Gas Porosity)

Symptoms: spherical pores in metallographic sections or CT; low Archimedes density. Cause: insufficient VED (high speed or low power): incomplete melting of powder particles or trapped shielding gas. Fix: increase VED, reduce scanning speed, or check gas flow cleanliness.

Hot Cracking

Symptoms: micro-cracks along grain boundaries, especially in nickel superalloys (IN738) and aluminum alloys.

What it is used for

Applications of the TruPrint 1000

Best Applications:

• Dentistry: Production of CoCrMo dental frameworks (crowns, bridges, partial frameworks) directly from digital CAD files with ±30 µm accuracy. The small volume and four-plate system allow daily batches of 40–80 units.