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The world’s largest 3D printer is at a university in Maine. It just unveiled an even bigger one

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The world’s largest 3D printer is at a university in Maine. It just unveiled an even bigger one


The inside of the University of Maine’s first 3D printed home is visible on Oct. 12, 2023, in Orono, Maine. The printer that created the house can cut construction time and labor. An even larger printer unveiled on Tuesday, April 23, 2024, may one day create entire neighborhoods. Credit: AP Photo/Kevin Bennett

The world’s largest 3D printer has created a house that can cut construction time and labor. An even larger printer unveiled on Tuesday may one day create entire neighborhoods.

The machine revealed Tuesday at the University of Maine is four times larger than the first one—commissioned less than five years ago—and capable of printing ever mightier objects. That includes scaling up its 3D-printed home technology using bio-based materials to eventually demonstrate how printed neighborhoods can offer an avenue to affordable housing to address homelessness in the region.

Thermoplastic polymers are extruded from a printer dubbed the “Factory of the Future 1.0.” There could be even larger printers after the University of Maine breaks ground this summer on a new building, a spokesperson said.

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The massive printer “opens up new research frontiers to integrate these collaborative robotics operations at a very large scale with new sensors, high-performance computing and artificial intelligence,” said Habib Dagher, director of UMaine’s Advanced Structures & Composite Center, where both of the printers are located.

Those attending the event included representatives from departments of defense, energy and housing, as well as other stakeholders who plan to utilize the new technologies made available by the printer. Heidi Shyu, under secretary of defense for research and engineering, said the printer “stands as a beacon of innovation.”

The world's largest 3D printer is at a university in Maine. It just unveiled an even bigger one
A bed sits inside the University of Maine’s first 3D printed home on Oct. 12, 2023, in Orono, Maine. The printer that created the house can cut construction time and labor. An even larger printer unveiled on Tuesday, April 23, 2024, may one day create entire neighborhoods. Credit: AP Photo/Kevin Bennett

The printer’s frame fills up the large building in which it’s housed on the UMaine campus, and can print objects 96 feet long by 32 feet wide by 18 feet high (29 meters by 10 meters by 5.5 meters).

It has a voracious appetite, consuming as much as 500 pounds (227 kilograms) of material per hour.

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The original printer, christened in 2019, was certified by Guinness World Records as the world’s largest polymer 3D printer, the university said. It was used to create a 600-square-foot, single-family home made of wood fiber and bio-resin materials that are recyclable. Dubbed “BioHome3D,” it showed an ability to quickly produce homes. To meet the growing demand for housing, Maine alone will need another 80,000 homes over the next six years, according to MaineHousing.

Dagher said there’s a shortage of both affordable housing and workers to build homes. The university wants to show how homes can be constructed nearly entirely by a printer with a lower carbon footprint. The buildings and construction sector accounts for roughly 37% of global greenhouse gas emissions, largely due to the production and use of materials such as cement, steel and aluminum that have a significant carbon footprint, according to the United Nations Environment Programme.

The world's largest 3D printer is at a university in Maine. It just unveiled an even bigger one
A cross section of an exterior wall of a house is being printed on a 3D printer at the University of Maine’s Advanced Structures & Composite Center on Oct. 12, 2023, in Orono, Maine. An even larger printer unveiled on Tuesday, April 23, 2024, may one day create entire neighborhoods. Credit: AP Photo/Kevin Bennett

Such printed buildings can be recycled, which is unique compared to current construction. “You can basically deconstruct it, you can grind it up if you wish, the 3D printed parts, and reprint with them, do it again,” Dagher said before the event.

“It’s not about building a cheap house or a biohome,” he added, referring to the first 3D-printed house made entirely with bio-based materials. “We wanted to build a house that people would say, ‘Wow, I really want to live there.’”

Looking ahead, researchers plan to tinker with the material consumed by the machine, including more bio-based feedstocks from wood residuals that are abundant in Maine, the nation’s most heavily forested state.

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But it can be used for a variety of other creations and already has been used for a range of things, from boats to defense department structures. In the past, the university showed off a 25-foot boat created by the first printer.

The world's largest 3D printer is at a university in Maine. It just unveiled an even bigger one
The University of Maine’s first 3D printed home sits on Oct. 12, 2023, in Orono, Maine. The printer that created the house can cut construction time and labor. An even larger printer unveiled on Tuesday, April 23, 2024, may one day create entire neighborhoods. Credit: AP Photo/Kevin Bennett

As for the original 3D printer, it isn’t going away. The two printers can be used in concert to streamline manufacturing by working on the same project—or even part if necessary—and there will be even more of them working together in the future, officials said.

© 2024 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.

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The world’s largest 3D printer is at a university in Maine. It just unveiled an even bigger one (2024, April 23)
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Maine

This Monster Burrito Challenge in Waterville, Maine, Is Not for the Weak

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This Monster Burrito Challenge in Waterville, Maine, Is Not for the Weak


Are you up for a Maine food challenge, or are your eyes bigger than your stomach?

A Waterville staple, Buen Apetito has a monster burrito just waiting for someone to eat it down to the very last bite.

This thing is a beast, literally called La Bestia, and it’s definitely a mighty task for a fearless foodie.

Take on the Buen Apetito La Bestia Food Challenge in Waterville, Maine

According to Buen Apetito, if you can finish a super-sized burrito in 30 minutes or less, you’ll get the $60 meal for free, a La Bestia champion shirt, and a picture on the wall of fame. That’s not to mention the bragging rights of dominating a task few will be able to conquer.

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Wondering what’s in the burrito?

The Mexican restaurant shared in a Facebook comment on a post that the burrito is filled with “grilled chicken, chorizo, and tender shredded beef or pork. Built on a layer of seasoned rice, refried beans, and French fries, it’s melted together with a shredded Mexican cheese blend and a drizzle of creamy cheese sauce, sautéed peppers and onions, green salsa, pico de gallo, sour cream, creamy guacamole, and a bed of shredded lettuce all wrapped in three extra-large tortillas fused into one epic wrap.”

Let’s just say that this thing is packed full.

The first La Bestia contender took up his fork and knife in December 2025, but despite coming close, he couldn’t come out with the win.

As of March 2026, the challenge has remained undefeated. But you never know, someone is bound to come out victorious.

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Just note that you can only try your hand at this food challenge on Wednesday and Thursday.

Buen Apetito Has Been a Longstanding Waterville, Maine, Restaurant

First opened in 1999, Buen Apeitito has been around for nearly 30 years.

Centralmaine.com reported that the Mexican restaurant was originally located at the Railroad Square complex off Chaplin Street before moving to 99 West River Road in 2023.

A little over a year later, in 2024, Buen Apetito shared on Facebook that it was passing on the torch to new owners, including Dalia, “the heart and soul of [the] kitchen for twenty years,” her daughter, Norma, and Norma’s husband, Shawn.

READ MORE: Famous Maine Restaurant Buen Apetito Adds Powerhouse New Owner to Crew

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And it seems like not only are things still going strong, but new additions like La Bestia food challenge are only enhancing the spirit of big flavor and delicious Mexican food at the Waterville staple.

So, you think you’re up for the task of taking down a beast of a burrito at Buen Apetito? Good luck.

You Know You’re From Maine If You’ve Tried All 19 of These Foods

Here’s a number of foods associated with Maine. How many of them have you had?

Gallery Credit: Sean McKenna

The New York Time’s Best Restaurant Lists Feature These 7 Maine Spots

Gallery Credit: Sean McKenna

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How the Good Neighbor Day of Giving telethon is impacting Maine’s communities

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How the Good Neighbor Day of Giving telethon is impacting Maine’s communities


BANGOR, Maine (WABI) – Monday’s telethon held by WABI in partnership with Penquis and Heart of Maine United Way Monday raised money for the heating of homes, something so basic, yet so significant in a state like Maine.

Danielle Hewes, Penquis contributor and volunteer, says some people might not even know that they qualify for heating assistance.

“I think there’s this misconception that you can’t get that if you’re working. Like that’s just for people on general assistance. The truth of the matter is this is for the people that are maybe not able to work, but also for the people that are working. They’re making ends meet,” she said.

For Danielle, that’s what makes events like the telethon so special: it’s making a real difference in the community with people who need the help the most.

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Speaking about Penquis in particular, she said, “You learn about all of the other things they do and how they help the community and you can’t help but want to be a part of that.”

If you weren’t able to donate Monday, donations are still being accepted.

You can go to homeunitedway.org/heat.

You can also call 941-2800.

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Arizona Sen. Gallego endorses Maine Senate hopeful Graham Platner

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Arizona Sen. Gallego endorses Maine Senate hopeful Graham Platner


PORTLAND, Maine (AP) — Maine Democrat Graham Platner has picked up another high-profile endorsement in his bid to flip a key Senate seat blue, marking another sign of the oyster farmer and combat veteran’s political resiliency even as he continues to face controversy throughout his campaign.

Arizona Democrat Ruben Gallego announced Monday that he was backing Platner, saying that the first-time candidate “reflects the grit and independence that defines Maine.”

“Graham Platner is the kind of fighter Maine hasn’t seen in a long time, someone who tells you exactly what he thinks, doesn’t owe anything to the special interests, and wakes up every day thinking about working families,” said Gallego, who won a Senate seat in Arizona in 2024 by more than 2 points while Trump carried the state by nearly 6 points.

Platner has previously been endorsed by Vermont Sen. Bernie Sanders, an independent who caucuses with Democrats, and New Mexico Sen. Martin Heinrich, a Democrat.

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However, Senate Minority Leader Chuck Schumer has endorsed Platner’s main opponent, Maine Gov. Janet Mills.

Both Platner, 41, and Mills, 78, are hoping to unseat Republican Sen. Susan Collins, 73, a five-term incumbent who announced last month that she was running for another term. A victory in Maine is crucial for Democrats’ efforts to take back control of the Senate. The Democratic Party needs to net four seats to retake the Senate majority, and they are aiming to do that in Maine, North Carolina, Alaska and Ohio.

READ MORE: Maine’s Graham Platner thinks voters will overlook his past to support a new type of candidate

Platner has gained traction with his anti-establishment image and economic equality message. He’s pressed forward despite controversies over old social media posts and a tattoo resembling a Nazi symbol, which he recently had covered up.

Gallego is among the Democrats named as possible 2028 presidential contenders. Last fall, he stumped in New Jersey, Virginia and Florida, where he campaigned for Democrats who went on to win their elections.

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“I have an immense amount of respect for him and I’m looking forward to joining him as a fellow Marine and combat infantryman in the U.S. Senate,” Platner said in a statement.

Kruesi reported from Providence, Rhode Island.

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