Researchers Develop Minibuilders, Tiny Robots Capable of 3D Printing Large Buildings

Share this Article

It is amazing how quickly the technologies around 3D printing have been developing over the last couple of years. Not only are we seeing Moore’s Law-like increases in the speeds of these prints, all the while prices are mini-5dropping substantially, but entirely new innovative approaches seem to emerge each day.

For instance, we have already seen 3D printing drones, combo 3D printer/CNC machines,  a 3D printing assembly line, and all sorts of crazy new ways to print with food. Today a unique, but quite innovative approach to 3D printing has been unveiled by a team of researchers at the Institute for Advanced Architecture of Catalonia (IAAC), based in Barcelona, Spain.

One problem with 3D printers today, is that their build envelopes are limited by the size of the actual printer. In order to print a house, you need a 3D printer which is larger than that house. This severely limits the utility of any one device, and equates to substantial costs for any person or company trying to print on a large scale. A team of researchers, led by Sasa Jokic, and Petr Novikov at IAAC, and includes Stuart Maggs, Dori Sadan, Jin Shihui and Cristina Nan, have invented and worked diligently on a method of printing large scale objects, such as buildings, with mobile 3D printing robots they call Minibuilders.

“Within the construction industry we haven’t seen any disruptive technologies being introduced for almost a century,” stated the IAAC research team. “We believe that robotics and additive manufacturing will play a key role in the construction industry of the future.”

Grab Robot Attaches Itself To A Print

Grab Robot Attaches Itself To A Print

The Minibuilder lineup consists of three different robotic devices, each with dimensions no larger than 42cm. Despite their small size, they are capable of printing buildings of almost any proportion. All three robots, all responsible for different functions, are required during any large 3D printing project.

Foundation Robot
This is the first robot to enter the construction site. It uses tracks as well as a line-follower sensor to move around and recognize curves of a project. The side of this robot holds the actual print head, which can gradually move up as the printed object builds upon itself. Once the object gets higher than the reach of the Foundation Robot’s arm, it’s time to move to the next Minibuilder.

Grip Robot
This robot clamps itself to the top of a build project, using four rollers. Each of the four rollers are connected to rotational and steering actuators, allowing the robot to position itself on a very precise area of the structure mini-2to begin printing. This robot uses the previously printed structure as a gripping support, so the material needs to dry extremely fast to allow it to support the next layer of the print. To do this, the Grip Robot uses heaters to cure the material as fast as possible. Once a structure’s shape and size are complete it is time to move on to the next robot.

Vacuum Robot
This is the final robot of the MiniBuilder construction process. It uses a vacuum within a suction cup to allow for attachment to the surface of an object. The purpose of this robot is to reinforce the structure which has been printed. To do this it travels up and down the structure repeatedly with two tracks, printing a material almost perpendicular to that of the other layers. This provides substantial support for larger objects.

The Vacuum Robot in Action

The Vacuum Robot in Action

Working together these Minibuilders are able to produce large scale 3D prints without the need for a large scale 3D printer. Although the technology may not have been perfected, researchers have put in place a stepping stone for a new method of printing buildings and other large object, which we are sure will continue to develop.

What do you think about this new 3D printing system? Could you see large buildings and homes eventually using a technology like this? Let us know in the Minibuilder forum thread at 3DPB.com. Check out the video below, provided by IAAC, showing the Minibuilders in action.

mini-4
mini-1

Share this Article


Recent News

BMF Targets Industrial Microscale Production with microArch S240 3D Printer

Made In Space to Launch Ceramic SLA 3D Printer to ISS



Categories

3D Design

3D Printed Art

3D Printed Food

3D Printed Guns


You May Also Like

ASTM Drives 3D Printing Standards via Investment into Eight Crucial Projects

Nonprofit organization ASTM International announced its third round of funding to support research that will help expedite standards in additive manufacturing (AM). The group creates and publishes technical standards for...

NASA Awards Contract to Build 3D Printed Batteries in Space

I was recently playing a game of Trivial Pursuit with my parents, and a question came up that I was sure my husband would know the answer to; so, in...

NASA Lets You 3D Print Your Own Mars Perseverance Rover

After a successful launch on July 30, NASA‘s Mars 2020 Perseverance rover mission is on its way to the Red Planet to search for signs of ancient life and collect...

Featured

Bioprinting on the ISS: Russian Cosmonaut 3D Prints Cartilage in Space

You may wonder what the point is of 3D printing in space; after all, isn’t that something we can do on terra firma—and spend other, more valuable time performing experiments...


Shop

View our broad assortment of in house and third party products.