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3D printed houses

Posts: 104
Location: Minnesota
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This has probably been covered here before but this is the first I've heard of 3D printed houses and it really seems like a cool idea. The majority of the house is built with a mortar that's a combination of recycled building materials and concrete, then they add the windows, doors, electrical and such. I found a couple of videos showing how some companies are doing it.  

There's a whole lot of videos on you-tube and Facebook of ways that nonprofits are using the technology to build houses for people in developing countries and such.  They also point out that they can be in any shape, so some people are saying it's a chance to start having homes that are more organic and creative in their shapes since it doesn't cost any more than making a box shape.  

The cost seems to be dropping fast, the way it does with any new technology.  The first houses I saw were fancy ones that were specially printed in exotic locations for around $32k and then there were a lot of stories about 3D printed houses costing less than $10k.  Now they're saying they hope the next batch for a large-scale project will be under $4k each and I imagine it could get lower from there, especially with smaller houses.

Just thought it was cool and thought others might be interested.  
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Location: Bendigo , Australia
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I have watched this technology develop, and the concept is brilliant on a number of fronts.
There are considerations people need to look at;
Will the cost of using it to save time, be worth the value of that time.
IE It may cost $3000 extra to build in 3 days compared with 4 months, but if it cots $11,00 it may not be worth it.
Setting it up will take a certain amount of time, perhaps its real advantage will in projects where multiple structures are being built

In some climates, insulating values of the walls are not important, but in others it will be a high priority.

I guess issues such as fitting it out with gas, electricity are all issues that will effect the final cost in cash and time, so different design standards may be better
IE All services may be bolted to the wall afce rather han buried  or hidden within the wall.

I wonder if its best application will be in dense, high value land areas and areas with poor assess.
IE London  where access is expensive and hard to have.
Rather than open country side applications
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reminds me of the circular buildings in the zietgeist series
using hempcrete that seemed like an interesting design to me
this one: no thanks
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