Een interessant project van de European Space Agency – ESA, die 3d printtechnologie wil gebruiken om een maanbasis te printen uit maanstof om zo de maan bewoonbaar te maken.
En hier het originele artikel van ESA.int
Lunar base made with 3D printing
BUILDING A LUNAR BASE WITH 3D PRINTING
Setting up a lunar base could be made much simpler by using a 3D printer to build it from local materials. Industrial partners including renowned architects Foster + Partners have joined with ESA to test the feasibility of 3D printing using lunar soil.
â€œTerrestrial 3D printing technology has produced entire structures,â€ said Laurent Pambaguian, heading the project for ESA.
â€œOur industrial team investigated if it could similarly be employed to build a lunar habitat.â€
Foster + Partners devised a weight-bearing â€˜catenaryâ€™ dome design with a cellular structured wall to shield against micrometeoroids and space radiation, incorporating a pressurised inflatable to shelter astronauts.
A hollow closed-cell structure â€“ reminiscent of bird bones â€“ provides a good combination of strength and weight.
The baseâ€™s design was guided in turn by the properties of 3D-printed lunar soil, with a 1.5 tonne building block produced as a demonstration.
â€œ3D printing offers a potential means of facilitating lunar settlement with reduced logistics from Earth,â€ added Scott Hovland of ESAâ€™s human spaceflight team.
â€œThe new possibilities this work opens up can then be considered by international space agencies as part of the current development of a common exploration strategy.â€
â€œAs a practice, we are used to designing for extreme climates on Earth and exploiting the environmental benefits of using local, sustainable materials,â€ remarked Xavier De Kestelier of Foster + Partners Specialist Modelling Group. â€œOur lunar habitation follows a similar logic.â€
The UKâ€™s Monolite supplied the D-Shape printer, with a mobile printing array of nozzles on a 6 m frame to spray a binding solution onto a sand-like building material.
3D â€˜printoutsâ€™ are built up layer by layer â€“ the company more typically uses its printer to create sculptures and is working on artificial coral reefs to help preserve beaches from energetic sea waves.
â€œFirst, we needed to mix the simulated lunar material with magnesium oxide. This turns it into â€˜paperâ€™ we can print with,â€ explained Monolite founder Enrico Dini.
â€œThen for our structural â€˜inkâ€™ we apply a binding salt which converts material to a stone-like solid.
â€œOur current printer builds at a rate of around 2 m per hour, while our next-generation design should attain 3.5 m per hour, completing an entire building in a week.â€
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