The Danish Rail Company is utilizing Prussa Filament for train repairs, according to an article on

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In a world where everything seems to be disposable, there are a few rare companies that are choosing to take a different path. Knorr-Bremse Rail System Denmark is one such company, forging a sustainable future by refurbishing trains and making the most out of every component. They have embraced the possibilities of additive manufacturing, using 3D printers and specialized filaments to design and create new parts when needed.

Located in Copenhagen, Knorr-Bremse’s main workshop is a hive of activity. Led by additive manufacturing specialists Lasse Dampe Hardö and Martin Einsberg Nihøj, the team focuses on reducing waste and prolonging the life of trains by repairing or replacing unavailable parts. They understand that every component has the potential to be valuable and are committed to maximizing that potential.

However, integrating 3D printing into the railway industry is not without its challenges. Approvals from train manufacturers and governments, as well as extensive documentation and material certifications, can be time-consuming and frustrating. It can take months to get the necessary permissions and certifications in place. But despite these hurdles, the team at Knorr-Bremse remains optimistic.

Lasse Dampe Hardö, one of the additive manufacturing specialists at Knorr-Bremse, recognizes the potential of 3D printing in the railway industry. He says, “I see more and more people in the railway industry looking into 3D printing. And for good reason! It has the potential to revolutionize the way we think about train maintenance and component replacement.”

One of the challenges in the rail sector is the stringent safety certifications required for train components. Safety is of utmost importance, and any new materials or parts must meet the highest standards. This is where the Prusament PETG V0 filament comes in. This specialized filament is self-extinguishing, meeting safety criteria while offering durability and thermal resistance. Knorr-Bremse has chosen to use the Prusament PETG V0 material because it is the only PETG filament with both US certification and EU compliance, adhering to strict railway regulations.

Knorr-Bremse’s commitment to sustainability and innovation is commendable. They are paving the way for a future where trains can be repaired and upgraded without the need for expensive and time-consuming manufacturing processes. By embracing the possibilities of additive manufacturing and making use of specialized materials, they are leading the charge towards a more sustainable and efficient rail industry.

If you are interested in learning more about Knorr-Bremse’s innovative approach to train refurbishment and 3D printing, be sure to check out their website and social media channels. They are always looking for feedback and ideas, so don’t hesitate to reach out and join the conversation. And if you want to stay up-to-date with the latest news and developments in additive manufacturing, be sure to sign up for their newsletter.

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