Quote:Marines have used a specialized 3D concrete printer to print a 500-square-foot barracks room in just 40 hours.

The innovative project created the world’s first continuous 3D-printed concrete barracks, according to the Marine Corps.

The barracks room was built earlier this month at the U.S. Army Engineer Research and Development Center in Champaign, Ill. Army and Navy Seabees were also involved in the construction effort.

Harnessing the world’s largest concrete printer, the Additive Manufacturing Team at Marine Corps Systems Command teamed up with Marines from I Marine Expeditionary Force.

“This exercise had never been done before,” said Capt. Matthew Friedell, Additive Manufacturing project officer in MCSC’s Operations and Programs/G-3, in a statement. “People have printed buildings and large structures, but they haven’t done it onsite and all at once. This is the first-in-the-world, onsite continuous concrete print.”

Using Computer Aided Design software on a 10-year-old computer, the concrete was pushed through a print head and layered repeatedly to build the barracks room walls. Friedell said that the job took 40 hours because Marines were carefully monitoring the project and continually filling the printer with concrete. However, if a robot was used to do the mixing and pumping, the building could be built in 24 hours, he added.

Normally, it takes 10 Marines five days to construct a barracks hut out of wood.

Set against this backdrop, the construction technology could help keep U.S. military personnel safe.

“In active or simulated combat environments, we don’t want Marines out there swinging hammers and holding plywood up,” said Friedell. “Having a concrete printer that can make buildings on demand is a huge advantage for Marines operating down range.”

More testing will now be done on the Marines’ new barracks-building technology.

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Very cool!

At the end of the article it says the private sector is looking into using 3d printings for building. What are illegals ‘working’ in construction gonna do?

I wish I understood the technology, but I'm as dumb as a sack of 3-D bricks.

(08-29-2018 06:17 PM)TechRocks Wrote:  I wish I understood the technology, but I'm as dumb as a sack of 3-D bricks.

x, y, and z planes.....

I designed my house in 3d coupled with piping design back in the late 90s.....

there are times I miss the CAD days.....

visual aid:

pseudo audio aid:



to the OP, that's cool as shite....

What a world we live in.

(08-29-2018 06:54 PM)TigerBlue4Ever Wrote:  What a world we live in.

3d printed structures are going become a monster moving forward for a variety of applications....

Someone is comparing two different things because there is no way it takes 10 people 5 days to frame up and sheet out a 500 sq ft building. Not even if they are bricking the outside. But most barracks have metal siding. Now if you are talking putting a roof on it and finishing up the insides and the worker took a coffee break every 30 minutes, maybe. But even then there's no way its taking 400 labor hours to complete and finish out a 500 sq ft room....


that's 2.5 men for each side to frame up a 25ft wall and sheet it out. Experience framers...1/2 days work for each wall for 2.5 men