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[Discovery] Chinese Company 3D Prints 10 Houses In One Day - Page 7

post #61 of 91
The ability to print shelters is definitely a step forward but I would not consider this a viable method in practice. It is not as simple as just fabrication of concrete elements when depending upon the environment I.e. the foundations, wind classifications, moisture, dead/live loads, proximity to the sea etc. Each of these factors determines the necessary grading of the concrete and reinforcement as well as dimensions in terms of concrete coverage and thickening of slabs etc. From what I can see in that video the mix they are using is all fines so that it's workable enough to placed by the printer, basically it would have the compressive strength of mortar.

Apologies for the fractured English, I am posting with my phone.
Edited by Im Batman - 4/30/14 at 8:49am
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post #62 of 91
Quote:
Originally Posted by Im Batman View Post

The ability to print shelters is definitely a step forward but I would not consider this a viable method in practice. It is not as simple as just fabrication of concrete elements when depending upon the environment I.e. the foundations, wind classifications, moisture, dead/live loads, proximity to the sea etc. Each of these factors determines the necessary grading of the concrete and reinforcement as well as dimensions in terms of concrete coverage and thickening of slabs etc. From what I can see in that video the mix they are using is all fines so that it's workable enough to placed by the printer, basically it would have the compressive strength of mortar.

Apologies for the fractured English, I am posting with my phone.

Current modular housing that we are seeing to pick up in the Maritimes is a smart move forward. Must more versatile, adaptive to numerous applications as said, etc. Although simplistic, you practically just need the unique foundation and then reinforce module homes on top. I hope what they are doing in the Maritimes is going to start making it to the mainstream. Much better quality and fitting to numerous environments compared to something a 3D printer would do.
post #63 of 91
Modular building is picking up indeed. e.g. They are using modules that represent whole rooms in budget hotels nowadays. But, those modules need proper construction, with proper in-situ treatment of concrete, e.g. vibrating the concrete or prestressing the steel, or yeah, using steel, so spraying concrete on a plain, is not going to replace that, they would need a 3d printer that actually duplicates proper construction on the molecular level and good luck with that wanting it in 2014.
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post #64 of 91
sounds awesome to me. it might seem small to americans, but that that reflects the american tendency to live in suburbs in large houses and commute. sure you can live in a very large house, have a backyard etc but it's all terribly inefficient and suburbia is pretty soul crushing
post #65 of 91
Hah. 'Space being serious business and regular buildings are easy'. Build a suspension bridge in Japan withstanding 9 on the Richter scale earthquakes and then tell me it's easy.

Hell even try a skyscraper anywhere on earth.

Or any house in a seismic zone.
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post #66 of 91
Quote:
Originally Posted by fateswarm View Post

Hah. 'Space being serious business and regular buildings are easy'. Build a suspension bridge in Japan withstanding 9 on the Richter scale earthquakes and then tell me it's easy.

Hell even try a skyscraper anywhere on earth.

Or any house in a seismic zone.

Who said building was easy?
    
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post #67 of 91
Quote:
Originally Posted by fateswarm View Post

Hah. 'Space being serious business and regular buildings are easy'. Build a suspension bridge in Japan withstanding 9 on the Richter scale earthquakes and then tell me it's easy.

Hell even try a skyscraper anywhere on earth.

Or any house in a seismic zone.

Well, it is not "that easy", but it is not that hard either.
Codes require you to over-engineer things: structural members are in some cases many times stronger than gravity alone would require. There are typical details / structural requirements that once met you are allowed to construct simple dwellings without the need for a registered architect or structural engineer to approve. Building codes try to minimize damages and risks to human lives, not save on building materials. Innovative structural systems are trying to do the same, with less material / cost, while theoretically proving they can yield the same strength / resistance to nature's forces.

When you are building something that goes to space, or any structural system where performance goes side to side with "safety" really, from aircraft to spaceships, and submarines to race-cars, building it as simple and light as possible is more important than saving a couple of $ in actual material costs.

Much like with real buildings, the cost of materials itself is only part of the problem.

So yeah, skyscrapers and suspension bridges are challenging - but at the same time the shear size of them makes it imperative to optimize the structure to lower cost. Oversizing the beams in your stick-frame or even $1M modern steel and glass house, leads to a few $ increase over unit area of a 1-2,000 sf (or whatever) house. Do the same when you are dealing with a skyscraper, and you are adding thousands of tons of steel, that now in turn it has to be supported by columns and braced by shearwalls or steel frames etc etc.

The struggle is not to engineer the skyscraper and make it .5, 1 or 2 miles tall...it is all solved.
The 1st question is what's the realistic budget, and then you build as high as the answer allows.

Question is how you can do what already has been done, only cheaper, much like SpaceX and other companies trying to compete into the aerospace sector are not revolutionizing the way to get you to lower orbits (big deal, NASA and FKA figured how to do that in the 50-60s), only how much the latter costs.
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post #68 of 91
Would live in one of these for sure, I am a minimalist and as such I do not need a lot of space. I would have my bedroom in the top back of the house and have the lower part of the house as a living space. But I am a student and I live in The Netherlands, so I am used to smaller houses. (If the continent of America was as densely packed as The Netherlands the entire world population could live there)
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post #69 of 91
I saw a 3d printer for sale at Microcenter the other day for $999. Then I went hmmmmm. Had to leave or I would have bought it, lol. Neat technology for sure. My hmmmmm moments are bad for my bank account

Edit* oh, I didn't notice you people above were fighting. Sorry for interrupting with my happiness . biggrin.gif
Edited by TheBlindDeafMute - 4/30/14 at 7:59pm
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post #70 of 91
Sounds like a lot of lost construction worker jobs if this went mainstream.
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