rpm advances the development and production of safety-critical helmet padding using 3D printing – supported by amsight, Farsoon, and Fraunhofer IPA.
Padding Systems for Safety-Critical Applications
EOD helmets are a key component of personal protective equipment for explosive ordnance disposal technicians. In addition to the outer protective shell, the internal padding plays a decisive role in energy absorption, secure fit, and wearer comfort. At the same time, these components are subject to stringent requirements regarding quality, reproducibility, and documentation.
The additively manufactured padding system developed by rpm is based on a lattice structure that replaces conventional foam materials. By specifically designing the lattice geometry, mechanical properties such as stiffness and damping behavior can be locally adapted, allowing different areas of the head to be protected individually. Improved protective performance is achieved while using less material, resulting in reduced weight and enhanced wearing comfort. The open structure also supports ventilation and simplifies cleaning.
Figure 1: EOD helmet padding – increased safety through 3D printing
Development and Manufacturing by rpm
Additive manufacturing enables rpm to realize padding geometries with defined damping structures and to produce them reproducibly. Design, material selection, and manufacturing parameters were carefully aligned to ensure consistent properties throughout serial production. Development and manufacturing of the padding are fully handled by rpm, while the customer markets the helmets and padding as part of its protective system.
Quality Assurance Through Data-Driven Processes with amsight
To sustainably ensure high quality standards in the long term, rpm relies on software solutions from amsight as the digital quality backbone of the project. Continuous acquisition and analysis of relevant process and part data across the entire additive manufacturing chain allow deviations from defined target values to be identified at an early stage. This enables proactive intervention in the manufacturing process before quality defects occur.
The resulting data-driven transparency regarding material behavior, process parameters, and component properties makes a significant contribution to process stabilization and ensures reproducible mechanical and functional characteristics of the padding. At the same time, systematic data evaluation — including statistical process control — provides a robust basis for documentation, traceability, and continuous process optimization, all of which are essential prerequisites for consistently high quality in safety-critical applications.
Industrial 3D Printing Technology from Farsoon
The padding components are manufactured on industrial 3D printing systems from Farsoon. These systems provide the process stability and repeatability required for safety-critical applications and enable controlled implementation of the padding geometries developed by rpm. Thanks to their open system architecture and precisely adjustable process parameters, Farsoon systems form the technological foundation for reliable additive serial production. In combination with rpm’s engineering know-how and amsight’s data-driven quality processes, consistent functional properties of the padding are ensured across all production batches.
Scientific Support from Fraunhofer IPA
The validation of manufacturing quality through data-driven processes was scientifically supported by the Fraunhofer Institute for Manufacturing Engineering and Automation IPA.
Fraunhofer IPA specifically assisted rpm in implementing the amsight software for data-driven quality assurance using process and machine data from the Farsoon systems. The focus was on identifying relevant process variables, defining suitable quality metrics, and analyzing manufacturing data to assess process stability and reproducibility.
This support enabled the creation of a transparent and reliable data basis that allows rpm to detect deviations at an early stage, stabilize processes in a targeted manner, and ensure consistently high quality of additively manufactured padding in serial production.
Figure 2: 3D representation of the build job with a visualisation of the measured weight of the components
Outlook
“As the development and manufacturing partner of our customer, our focus was on creating a padding system that can be produced reproducibly and reliably meets the required quality characteristics,” says Dr. Jörg Gerken, Technical Managing Director at rpm. “The combination of additive manufacturing and data-driven quality assurance plays a central role in this.”
The approach developed in this project demonstrates how 3D printing, industrial manufacturing technology, and software-based quality assurance can be combined to realize customized components for safety-critical applications, and how a structured, data-driven quality backbone can help make additive manufacturing a dependable production technology for the future.
About rpm
Die rapid product manufacturing GmbH (rpm) ist ein führender Dienstleister in der Herstellung von Prototypen und Kleinserien aus Kunststoff. Mit einem umfassenden Portfolio modernster Fertigungstechnologien bietet rpm passgenaue Lösungen für unterschiedlichste Anforderungen. Zum Einsatz kommen additive Verfahren wie Selektives Lasersintern (SLS), Digital Light Synthesis (DLS), Digital Light Processing (DLP), Masked Stereolithografie (MSLA) und Fused Deposition Modeling (FDM). Das Technologieportfolio der rpm wird durch Gieß- und Spritzgießverfahren vervollständigt, was die schnelle und flexible Herstellung funktionaler Bauteile ermöglicht.
About amsight
amsight GmbH is a spin-off of Fraunhofer IAPT, founded in 2023. The company develops software solutions for industrial Additive Manufacturing focused on digital quality assurance and analytics across the entire AM production chain – from raw material to final part. By applying statistical methods and AI, amsight enables reproducibility, traceability, and significant cost reductions in AM operations.
www.amsight.de
About Farsoon
Founded in 2009, FARSOON Technologies is a system provider of industrial AM platforms for polymers and metals. With an open parameter strategy, high-performance hardware, and local support through FARSOON Europe GmbH, the company enables its customers to scale additive manufacturing with high quality, flexibility, and cost efficiency.
https://www.farsoon.com/
About Fraunhofer IPA
The Fraunhofer Institute for Manufacturing Engineering and Automation IPA is one of the largest Fraunhofer institutes, with over 1,000 researchers developing solutions for industrial production. The Manufacturing and Process Engineering department has been conducting research into polymer-based additive manufacturing processes for more than 15 years and actively works to make the technology suitable for professional applications.
www.ipa.fraunhofer.de
Contact
Jonas Hotopp: Hotopp@rpm-factories.de
Tim Wischeropp: tim.wischeropp@amsight.de
Patrick Springer: patrick.springer@ipa.fraunhofer.de
Tobias Todzy: tobias.todzy@farsoon-eu.com
