ESA wil maanbasis 3D printen
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
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.
“Terrestrial 3D printing technology has produced entire structures,” said Laurent Pambaguian, heading the project for ESA.
“Our industrial team investigated if it could similarly be employed to build a lunar habitat.”
Foster + Partners devised a weight-bearing ‘catenary’ 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 – reminiscent of bird bones – provides a good combination of strength and weight.
“The 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.”
The UK’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.
“First, we needed to mix the simulated lunar material with magnesium oxide. This turns it into ‘paper’ we can print with,” explained Monolite founder Enrico Dini.
“Then for our structural ‘ink’ we apply a binding salt which converts material to a stone-like solid.
“Our 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.”