Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Default 40 foot tall 3d printer prints buildings

I wonder what a good adobe block crew could do if their blocks were
ready made and just laying them out with mud.

Martin

On 9/26/2015 5:12 PM, Ed Huntress wrote:
On Sat, 26 Sep 2015 14:58:59 -0700, mike wrote:

On 9/26/2015 10:47 AM, F. George McDuffee wrote:
On Fri, 25 Sep 2015 11:49:12 -0700 (PDT), StarDust
wrote:

On Thursday, September 24, 2015 at 3:24:25 PM UTC-7, F. George McDuffee wrote:
http://www.businessinsider.com/wasp-...sider%20Select
http://tinyurl.com/q9omrfe


--
Unka' George

"Gold is the money of kings,
silver is the money of gentlemen,
barter is the money of peasants,
but debt is the money of slaves"

-Norm Franz, "Money and Wealth in the New Millenium"

What's that gonna do to the real estate market?
There's all read plenty of pre-fabricated houses out there!
==============
My impression is this is intended for basic housing in less
developed countries to use locally available materials.


Looks like a solution in search of a problem.
I guess a gizmo that fits in the bed of a pickup and
cranks out bricks won't get enough media attention.


If you're suggesting soil-cement bricks in competition with a 3D
printer pumping out a similar thing, there's no contest. I worked on a
soil-cement project 45 years ago. It's labor-intensive and very slow.
The only place it makes any sense is in some place where people have
nothing else to do.

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Default 40 foot tall 3d printer prints buildings

On Sat, 26 Sep 2015 23:37:23 -0500, Martin Eastburn
wrote:

I wonder what a good adobe block crew could do if their blocks were
ready made and just laying them out with mud.


They'd run rings around a mud-spitting machine every day of the week.

What "we" need is an adobe mud brick-making-and-drying machine. Just
dump in straw, mud, & water and it mixes/compresses/shapes/dries the
bricks in minutes.

--
"Bother", said Pooh, as he chambered another round...
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Default 40 foot tall 3d printer prints buildings

On Sun, 27 Sep 2015 08:29:52 -0700, Larry Jaques
wrote:

On Sat, 26 Sep 2015 23:37:23 -0500, Martin Eastburn
wrote:

I wonder what a good adobe block crew could do if their blocks were
ready made and just laying them out with mud.


They'd run rings around a mud-spitting machine every day of the week.

What "we" need is an adobe mud brick-making-and-drying machine. Just
dump in straw, mud, & water and it mixes/compresses/shapes/dries the
bricks in minutes.


They exist, in both manual and automatic versions. They require
Portland cement in various amounts and the bricks take three days to
cure, and a week or more to dry. Otherwise, they crack.

I've used the manual version with a long piece of pipe for a lever.
They're a very slow way to make bricks.

The 3D mud printer will beat the hell out of you for time and
manpower.

--
Ed Huntress
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Default 40 foot tall 3d printer prints buildings

On Sunday, September 27, 2015 at 11:46:21 AM UTC-4, Ed Huntress wrote:
On Sun, 27 Sep 2015 08:29:52 -0700, Larry Jaques
wrote:

On Sat, 26 Sep 2015 23:37:23 -0500, Martin Eastburn
wrote:

I wonder what a good adobe block crew could do if their blocks were
ready made and just laying them out with mud.


They'd run rings around a mud-spitting machine every day of the week.

What "we" need is an adobe mud brick-making-and-drying machine. Just
dump in straw, mud, & water and it mixes/compresses/shapes/dries the
bricks in minutes.


They exist, in both manual and automatic versions. They require
Portland cement in various amounts and the bricks take three days to
cure, and a week or more to dry. Otherwise, they crack.

I've used the manual version with a long piece of pipe for a lever.
They're a very slow way to make bricks.

The 3D mud printer will beat the hell out of you for time and
manpower.

--
Ed Huntress


An entire house seems more likely to crack than a brick.

John
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Default 40 foot tall 3d printer prints buildings

On Sun, 27 Sep 2015 09:50:11 -0700 (PDT), John Halpenny
wrote:

On Sunday, September 27, 2015 at 11:46:21 AM UTC-4, Ed Huntress wrote:
On Sun, 27 Sep 2015 08:29:52 -0700, Larry Jaques
wrote:

On Sat, 26 Sep 2015 23:37:23 -0500, Martin Eastburn
wrote:

I wonder what a good adobe block crew could do if their blocks were
ready made and just laying them out with mud.

They'd run rings around a mud-spitting machine every day of the week.

What "we" need is an adobe mud brick-making-and-drying machine. Just
dump in straw, mud, & water and it mixes/compresses/shapes/dries the
bricks in minutes.


They exist, in both manual and automatic versions. They require
Portland cement in various amounts and the bricks take three days to
cure, and a week or more to dry. Otherwise, they crack.

I've used the manual version with a long piece of pipe for a lever.
They're a very slow way to make bricks.

The 3D mud printer will beat the hell out of you for time and
manpower.

--
Ed Huntress


An entire house seems more likely to crack than a brick.

John


'Don't know what thye're using for a binder and/or reinforcement. But
the sections are a lot thinner than bricks, so prejudging its
effectiveness probably is a mistake.

Soil-cement bricks, though, can be a problem to get right. There are
university extension services that will analyze the soil and tell you
how much Portland cement to use. But if there's a lot of organic
material in there, you can still wind up with cracked bricks.

Adobe is rich in clay. If you're using local soil, it's going to
depend on what's in it.

--
Ed Huntress
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