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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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#1
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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. |
#2
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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... |
#3
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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 |
#4
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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 |
#5
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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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