Sintavia Signs Letter of Intent to Acquire Extended-Z M 8K from AMCM> Brian Neff, Founder & CEO of Sintavia, and Martin Bullemer, Managing Director of AMCM announce signing of LOI for Sintavia to become the North American launch customer of the M 8K on November 7, 2023 (Photo: Business Wire)

(BUSINESS WIRE) — Sintavia, LLC, the leading additively-enabled component OEM within the Aerospace & Defense industry, announced today that it had signed a letter of intent with AMCM GmbH of Starnberg, Germany, to become the North American launch customer of the M 8K printer—one of the largest powder bed fusion 3D printers ever built. At 820mm x 820mm x 1600mm with eight nLIGHT AFX-1000 lasers, the M 8K purchased by Sintavia represents an enormous leap in productivity and design freedom compared with smaller printers. Delivery of the first North American M 8K to Sintavia is expected to occur in early 2025.

“Whoever says that there are no economies of scale in AM hasn’t been running a large enough printer,” said Brian Neff, Sintavia’s Founder and CEO. “With over one cubic meter of displacement and eight next generation nLIGHT lasers, Sintavia’s new M 8K will not only allow for very large, complex components to be designed and printed, but also dramatically reduce unit pricing on smaller units. In our experience, there is an exponential increase in product design utility when build chamber dimensions increase linearly, and the M 8K has the largest build chamber of all.”

“Over the past six years, it has been a pleasure to work together with Brian and his team as we have collectively pushed the envelope for larger and faster machines across the Aerospace & Defense industry,” said Martin Bullemer, Managing Director of AMCM GmbH. “It is a natural fit that the first M 8K in North America—and the first one anywhere with an extended Z-axis—would go to Sintavia. We look forward to working with the Sintavia team to see how they apply this game-changing technology.”

Sintavia currently operates a fleet of seventeen AMCM and EOS GmbH printers, including two M 4K printers it acquired in 2021. The M 8K architecture is based on the M 4K platform, which in turn was based on the architecture of the highly successful EOS M400-4 multi-laser printer. AMCM officially launched the M 8K in September 2023 with ArianeGroup as the European launch customer. ArianeGroup, a joint venture between Airbus and Safran, will use the first M 8K, when it arrives in early 2025, to print a large combustion chamber for its Prometheus rocket engine. It is expected that Sintavia’s M 8K will run a nickel alloy.

About Sintavia

Sintavia designs and additively manufactures a new generation of power and thermal management components for the Aerospace & Defense industry. A founding member of the Additive Manufacturer Green Trade Association, Sintavia is committed to the highest quality standards in the industry and holds multiple Nadcap and other aerospace accreditations. For more information visit

About AMCM GmbH

AMCM (Additive Manufacturing Customized Machines) offers customized AM solutions based on proven EOS technology and processes that set the benchmark for metal 3D printing. The machines are built with varying degrees of customization, either designed almost from scratch or as modified and enhanced EOS systems. This involves process customization, including the use of new lasers, adapted heating concepts and different spot sizes, as well as modified build volumes. AMCM is an EOS Group company. For more information visit