TPM3D: Breakthroughs in SLS Waste Powder Recycling and Large-Format Multi-Laser Systems

The 2025 Formnext Shenzhen exhibition welcomed more than 20,000 professionals, while Panda3dp.com’s livestream drew over 34,000 online viewers.

At the booth of TPM3D 3D—an innovator in selective laser sintering (SLS) technology—Manager Wang introduced the company’s latest achievements in consumer electronics, healthcare, and the arts, alongside a headline-grabbing solution for cost-effective and eco-friendly waste powder recycling.

1. Innovative Materials: Solving the MJF Waste Powder Dilemma

One of the exhibition’s highlights was TPM3D’s material innovation designed to address the long-standing challenge of reusing nylon waste powder from HP’s Multi Jet Fusion (MJF) process.

 Solution: By blending 90% MJF waste nylon powder with 10% of TPM3D’s newly developed glass-fiber-reinforced nylon (40% GF), the resulting material can be directly reused.

 Performance: Parts printed with this mix on TPM3D’s SLS systems showed excellent properties, fully meeting end-use requirements.

 Industry Value: This provides HP service providers with a low-cost, high-efficiency pathway to recycle waste powder, cutting material waste while boosting both economic and environmental benefits.

2. Diverse Applications: From Electronics to Rehabilitation and Art

TPM3D showcased the breadth of SLS applications across multiple industries:

 Consumer Electronics & Wearables:

   Custom eyeglass frames printed on the P360, tailored to individual measurements, weighing just 10 g with smooth post-processed surfaces.

   Prototyping shells for mice and laptops, supporting design validation.

   Artistic mechanical keyboard keycaps with hollowed-out designs for RGB lighting effects and enhanced tactile feel.

 Industrial Components:

   Large, complex internal-channel structures such as automotive HVAC distribution boxes and nylon ducts for metal 3D printers, highlighting SLS advantages in producing intricate hollow geometries.

 Medical Rehabilitation:

   A full orthosis set displayed on a mannequin—including neck, shoulder, spine, wrist, thigh, and ankle braces—all printed on TPM3D SLS systems. Post-processed with chemical vapor smoothing, the supports had skin-safe, smooth finishes and are already deployed in hospitals.

 Art & Design:

   Collaborations with the Sculpture Department of Tsinghua University Academy of Arts produced works such as Companion (a double whale) and Interwoven. These hollow structures exploited SLS’s support-free precision. Notably, they were printed entirely with 100% recycled powder, minimizing material costs for non-functional pieces.

3. Core Equipment: Large-Format Dual-Laser System and Closed-Loop Powder Management

 P550 DL Dual-Laser SLS System (550 × 550 × 850 mm):

  Demonstrated live, the system featured two synchronized laser beams working in tandem—delivering exceptional productivity in large-format industrial SLS printing.

 Powder Processing Station (PPS):

  A fully enclosed, automated system for powder recovery, sieving, mixing (new and recycled powders), and feeding back into the printer. This closed-loop design minimizes operator exposure, maintains a clean production environment, and ensures consistent powder quality—earning strong customer acclaim.

TPM3D 3D’s showcase clearly reflected its strategy of “deep cultivation of SLS technology.” By addressing waste powder recycling with a practical, cost-saving material innovation and demonstrating applications spanning eyeglasses, full-body orthotics, industrial ducts, and even fine art, TPM3D proved both the breadth and maturity of its solutions. Coupled with its large-format dual-laser system and advanced closed-loop powder management, TPM3D is providing industrial clients with a stable, efficient, and highly economical pathway to scaled additive manufacturing.