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3D Printing of a lunar base using lunar soil will print buildings at 3.5 meters per hour

Posted in Science on 20th Sep, 2013 03:58 PM by AlexMuller
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.
This is a case where 3d printing would win out over regular manufacturing. Most of the material is lunar dirt but with added magnesium oxide and a binding ink. This greatly reduces the weight of the material to be brought to the moon. There has been previous work on using carbon nanotubes and epoxy to make lunar concrete.
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 base’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.
The UK’s Monolite supplied the D-Shape printer, with a mobile printing array of nozzles on a 6 meter 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 meter per hour, while our next-generation design should attain 3.5 meter per hour, completing an entire building in a week.”

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Author: Guest
Posted: 2013-09-20
My advice would be to dig underground on the moon. All you need then is digging equipment, nothing too experimental. Going below the surface would provide allot of protection against radiation from space and also requires no transportation of structural building materials. I was talking to google staff about this yesterday.
2 Replies
Author: Guest
Posted: 2013-09-21
I will say though the plans are coming along and hopefully they will be able to make a safe environment for our explorers are they head out into space. I would like to think that people like bennie will have the best chance possible to survive their time there. Reply


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