ESA Considers 3D Printing Spare Parts in Space Using Materials Found on the Moon

LMM technology from Incus 6 photos
Photo: Incus
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A new European Space Agency project wants to test the possibility of 3D printing spare parts in space, to be used on lunar stations.
The European Space Agency (ESA) partnered with Austrian engineering company Incus to test 3D printing in a micro-gravity environment. German space and technology group OHB SE (via its OHB System subsidiary) and 3D printing company Lithoz GmbH are also part of the project.

Lunar stations are in constant need of supplies, research materials, and equipment. In addition to these, they also have to be prepared for any component failure, so spare parts are also a must, especially when we’re talking about long-term missions.

That is why ESA considers manufacturing necessary spare parts and other items on board, using and reusing materials found on the Moon’s surface. Being able to do so will be beneficial both cost-wise as well as for reducing production waste.

In order to produce these spare parts, the project thinks of relying on the LMM technology used by Incus. LMM stands for Lithography Metal Manufacturing and it can produce parts that have great surface aesthetics and similar material properties compared to MMM (Metal Injection Molding), according to Incus. It is this method that ESA wants to test in space, using existing lunar surface materials and recycling lunar base scrap metal.

This is going to be an 18-month project as it also requires time to assess all the constraints of a space environment. While these lithographic techniques have indeed been demonstrated successfully down here, they still pose a lot of questions and potential hindrances when it comes to implementing them in space. One example could be the potential contamination of the metal powder with lunar dust.

Using 3D printing technologies outside our planet is not a new concept. NASA has also been working for a few years now with ICON, a 3D printing company based in Texas, to 3D print the first settlements and structures on the Moon.

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About the author: Cristina Mircea
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Cristina’s always found writing more comfortable to do than speaking, which is why she chose print over broadcast media in college. When she’s not typing, she also loves riding non-motorized two-wheelers, going on hikes with her dog, and rocking her electric guitars.
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