Functional prototypes produced with metal 3D printing

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Edging tool for bending machine

In 2011 BAM GmbH was founded by the current managing director Marco Bauer in Weiden in the Oberpfalz. Starting as a classic contract manufacturer with eight employees, it is now a multi-award-winning digital company.

BAM GmbH offers precision manufacturing, special machine construction and digital services. In the field of additive manufacturing, BAM relies on the Metal X metal 3D printer system and the Mark Two carbon fiber 3D printer from Markforged, among other technologies.

The Challenge

Many possible applications in the service sector
BAM GmbH offers a wide range of products for the manufacture of metal and plastic components of the highest quality and with the narrowest tolerances for numerous different industries. For these applications, additive manufacturing is the best choice, especially in the field of weight optimisation.

Up to now, most parts have been manufactured by machining, which is complex and cost-intensive, especially in prototyping. Managing Director Marco Bauer also prints individual parts for his own state-of-the-art machinery.


Easy entry into Additive Manufacturing due to the closed overall system
While searching for a metal 3D printer, founder and managing director Marco Bauer got to know the production technology of Markforged. He was particularly convinced by the easy handling of the material change by simply replacing the material rolls.

Markforged‘s all-in-one system connects all components with each other: from the cloud-based software to the 3D printer and the post-process (washing and sintering). This gives a quick and easy overview of the complete process chain. The individual components are matched to each part accordingly, so that the best possible result can be achieved from the very first print! Thanks to the cloud-based software, print jobs can even be started conveniently from on the road.

The Solution

Design freedom for component optimization
Due to the additive manufacturing there are almost no restrictions in the geometric complexity of a component. This is advantageous for making components lighter and optimizing them for their intended use.

By processing continuous fibres, the components are given more performance in terms of strength with an excellent surface quality.

At a glance

  • All-in-One System
  • Easy entry into Additive Manufacturing
  • Excellent suface quality
  • Continuous fibres provide high strength

Before sintering

After sintering

Edging Tool

Simple production of functional prototypes
Marco Bauer shows the use of the Markforged Metal X on an A2 tool steel edging tool. After the design, an STL file of the part is created to be imported into the EIGER software. There the tool can be prepared for printing (wall thickness, internal structure etc.). Afterwards the printing can be started with a simple click!

Thanks to a honeycomb structure inside the component, weight can already be saved with the same geometry and stability. After printing, the washing and sintering processes follow, whose optimum temperatures and times for the component are calculated by the EIGER software and sent to the machines. So here too the postprocess can be started with a simple click. The component is ready for use immediately after sintering. For an even better surface quality or lower tolerances the component can be polished, ground or CNC reworked.

Data of the edging tool:
Dimensions: 155,7 mm x 55,0 mm x 50,0 mm
Material: A2 Tool Steel
Printing time: 48 h
Washing time: 25 h
Drying time: 4 h
Sintering time: 27 h
Process time: 104 h (4,5 days)
Material costs: 150 €

The advantages of 3D printing compared to CNC production can be seen in this component:
Increasing the complexity of a component leads to additional costs and longer delivery times in machining production. In additive manufacturing, weight-reducing measures lead to cost reduction and the generation of added value.

The Future

Trust in Markforged Technology and Mark3D
For the future, the state-of-the-art machinery is to be expanded with additional 3D printers and the technological progress of the company is to be driven forward.
As the next functional prototype for its machinery, BAM GmbH is already planning a sink electrode for a sink erosion machine made of pure copper. This will also be printed on the Markforged Metal X system.
99.8 % pure copper with very high thermal and electrical conductivities can now be printed with significant design freedom.

Customer voice

„Additive manufacturing means that there are almost no restrictions in the geometric complexity of a component. This is an advantage when it comes to making components lighter and optimizing them for their intended use. So far, our Markforged 3D printers (Mark Two and Metal X) have been running flawlessly and without malfunction. We feel well looked after by Mark3D and the service is very good!“ says Marco Bauer, Managing Director of BAM GmbH.

Learn more about applications with metal 3D printing!

For which applications is the Metal X suitable? How do I design correctly for metal 3D printing? What do users say and where can I find more information? – This is the right place for you! We listed some information leading you directly to the matching answers.

Design Guide

DfAM – How do you design your part best for metal 3D printing? In this guide you will find valuable tips on design, material selection and post-processing.

Problemes to solve

In this white paper, we take a look at three benefits of metal additive manufacturing and three problems the technology is perfectly suited to solve.

Case Study

In this practical case study from Stanley Black & Decker, cost and lead time were saved by optimizing an assembly.

Metal X part


An application engineer from Markforged explains the Metal X system and which materials are available. He also shows a complete run from printing to the finished part.