Mobile 3D printing centre for even greater customer proximity and fast availability of spare parts

May 12, 2021
Stuttgart / Neu-Ulm
  • Daimler Buses and Omniplus have created a mobile printing centre for the decentralised series production of 3D printed spare parts.
  • The mobile container will be in operation at the BusWorld Home (BWH) service centre in Hamburg.
  • The "mini factory" with 36 m2 of floor space is equipped with a top-quality industrial 3D printer and includes all of the relevant stations necessary to the production of 3D printed spare parts.
  • Currently just under 40,000 bus spare parts can be produced with 3D printing technology. Today some of those are now only available as 3D printed spare parts.
  • In the future, bus customers will be able to purchase 3D printing licences via the Omniplus On portal and have the corresponding parts produced via a certified 3D printing centre.

Stuttgart / Neu-Ulm. Daimler Buses and its service brand Omniplus have created a mobile printing centre for the decentralised production of 3D printed spare parts in order to be able to provide bus customers with spare parts more quickly. The "mini factory" in the form of a container includes all of the stations relevant to the production of spare parts using a 3D printer on an area of only 36 m2. The twelve by three metre container can be transported by truck to any location. Once there, only electricity and an internet connection are required for its operation. 

Pilot project at the service centre in Hamburg 

The pilot container from Neu-Ulm will be in operation at the BusWorld Home (BWH) service centre in Hamburg. As a result, the service centre in Hamburg that already offers a range of services for Mercedes-Benz and Setra buses will be able to quickly produce spare parts inhouse. Physical transportation routes are thus further reduced and the spare part is at the customer's site even faster. Thanks to the expertise of BWH Hamburg in the field of painting, the spare parts can be refined directly, according to customer requirements. Daimler Buses is thus setting up a further production facility for 3D printed spare parts at the BWH Hamburg – in addition to the internal industrial 3D printing centre in parts production in Neu-Ulm. 

"Thanks to the mobile 3D printing centre, we can exploit the advantages of 3D printing to a greater extent and further increase the speed at which we supply spare parts. Decentralised production of parts as required avoids warehousing costs and reduces transportation routes. Thus, 3D printing not only allows us to react fast, flexibly and economically to customer requirements but to also improve our ecological footprint for the production of spare parts," says Bernd Mack, Head of Customer Services & Parts at Daimler Buses. 

Industrial 3D printing on twelve by three metres 

The mobile container is equipped with a top-quality industrial 3D printer which produces 3D printed products to the same quality as other genuine parts. Therefore Daimler Buses is the first provider that can deliver series-production quality using a mobile solution. The 3D parts are additively manufactured using high-quality polyamide and meet the production standards for injection-moulding and deep drawn parts as stipulated by Daimler AG. The 3D printing data is prepared at a CAD work station prior to the printing process. The required powder is prepared at a processing station where the printed spare part is also freed from residue powder in a final step. A blasting system and an air compressor are located in an adjacent room: the blasting system smooths the surface of the component parts for a perfect finish. Here, the printed spare parts can also be painted in a limited range of colours. The compressor provides the systems with compressed air. The container is also equipped with an industrial vacuum cleaner, an air filter and an air conditioning system. 

3D printing at Daimler Buses – from physical to digital warehousing 

Using 3D printing Daimler Buses can react fast and flexibly to urgent customer requirements, for example when customers order rarely required parts or have special requests. Instead of a wait of several weeks as for conventional spare parts, production and delivery of a 3D printed part takes only a few days. Just under 40,000 bus spare parts are already 3D printable today. Ralf Anderhofstadt, Head of the "Center of Competence 3D-Printing" at Daimler Buses and his team are currently focussing on around 7,000 parts that are being successively digitised. Some of these are already available only as 3D printed spare parts after having undergone the relevant digitisation steps, approval processes and numerous product tests and are stored in the "digital warehouse" together with the necessary printing information. In a next step, Daimler Buses intends to further expand and decentralise the business model: customers will then be able to purchase 3D printing licences from the "commerce" section of the Omniplus On portal and have the corresponding parts produced in a 3D printing centre certified by Daimler Buses. As printing centres of this kind are still uncommon, these mobile mini factories represent an expansion of the planned business model. 

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