Additive Manufacturing Services

Modular Additive Manufacturing system for printing heterogeneous synthetic tissues and sensors

Additive Manufacturing or 3D printing involves the layer-by-layer construction of objects from digital models. This technique has gained significant traction in various industries due to its ability to produce complex geometries that are difficult or impossible to achieve with traditional manufacturing methods. There are also advantages for Sustainability, fast turn-around time, and methods of printing novel materials.

ALT LLC specializes in additive manufacturing solutions for prototyping, tooling, mold production, and custom object fabrication. Our comprehensive capabilities include both proprietary custom systems and industry-standard technologies such as Fused Filament Fabrication (FFF) and high-resolution DLP resin printing. 3D Printer calibration generally requires optimization of several parameters, outlined here.

Material Capabilities

Our material portfolio spans from standard thermoplastics like PLA and ABS to advanced engineering materials including high-strength Ultem, processed through our high-end enclosed printer systems. We maintain an extensive library of additive manufacturing materials to meet diverse project requirements.

Multi-Material Printing

For projects requiring multiple colors or material combinations, we offer advanced multi-material printing capabilities through our Automatic Material System (AMS) equipped Bambu Labs X1C printer. This technology enables complex, multi-component prints in a single build cycle.

Whether you need rapid prototypes, production tooling, or specialized components, ALT LLC delivers precision additive manufacturing solutions tailored to your specifications.

Researchers at ALT LLC are continually exploring new materials that can enhance the properties of printed objects. These materials include biocompatible polymers, composites incorporating metals or ceramics, and bio-inks for printing synthetic tissues. The development of such materials enables the production of lightweight, durable, and functional components, particularly in the biomedical field. We also have developed many novel printing processes, custom tools, and printheads for printing synthetic tissues and sensors.

Abdominal wall with multiple tissues for trocar insertion evaluation


At ALT LLC we have developed a wide range of synthetic tissues that can be printed and or molded into heterogeneous tissue structures such as the abdominal wall tissue model shown to the left.

As researchers continue to explore the synergy between new materials and advanced processes, the potential applications in fields such as prosthetics, aerospace, and healthcare are expanding rapidly. The ongoing evolution of additive manufacturing promises to not only optimize production techniques but also to pioneer solutions that could enhance performance and functionality in a wide array of industries.

Cric with surrounding tissues. Heterogeneous tissue printing. For Cric procedure training

Another multi-tissue example is shown to the right, Here we have a Cricothyroitomy trainer model with multiple tissues printed, (Cartilage, muscle, adipose)

In terms of processes, innovations such as continuous 3D printing, selective laser sintering, and digital light processing are redefining capability and efficiency in additive manufacturing. These methods can reduce production times and improve the accuracy and surface finish of the end products. Furthermore, process control and monitoring technology advancements ensure consistent quality in printed items.