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.”
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.
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 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.
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Maine Senate hopeful, Democrat David Costello, speaks with a potential voter as he gathers signatures, required to be considered at the party’s convention, in downtown Brunswick, Maine on July 12.
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BRUNSWICK, Maine – On a sunny Sunday, Senate hopeful David Costello worked the sidewalk in downtown Brunswick asking for signatures.
“Woud you happen to be a registered Democrat?” he asked one woman before engaging in a back and forth conversation. She asks if he’s progressive.
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“Very progressive,” Costello said.
Costello is one of several Maine Democrats who see the fall of Graham Platner’s senate campaign as an opportunity to represent Maine in Washington.
Platner won June’s Democratic primary election handily. But allegations of rape by a former romantic partner last week forced him to drop out of the race. It leaves Maine Democrats scrambling to find a new nominee before the July 27 deadline to put a name on the ballot. Platner denies the allegations.
The Maine Democratic Party will hold a convention on July 25 where 601 delegates will choose that nominee. That candidate will need to capitalize on the enthusiasm Platner generated to defeat Republican Sen. Susan Collins.
An unstoppable incumbent or a top pick-up opportunity?
Sen. Susan Collins, R-Maine, leans down to listen to a young paradegoer at the annual Moxie Day Parade is Lisbon, Maine on July 11.
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Collins remained quiet at the end of Platner’s campaign but at the annual Moxie Day parade Saturday in Lisbon, Maine, she walked with volunteers in red shirts.
“People appreciate the fact that I provide steady leadership — and the word steady does come up a lot,” Collins said at the parade, “and that I continue to work really hard for Maine.”
Collins has represented Maine in the Senate since 1997. She has managed to stay in her seat even as Maine has voted for Democrats for president statewide, including in 2020 when the state voted for Joe Biden. Collins last won reelection that year with a comfortable margin — more than 8.5%.
At the annual Moxie Day Parade in Lisbon, Maine, supporters of Sen. Susan Collins, R-Maine, march with signs and giant letters spelling S-U-S-A-N, on July 11.
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Democrats see Maine as pivotal to their chances to retake the Senate. Platner’s departure from the race puts pressure on the party to choose a replacement candidate who can win over Platner’s loyal voters and appeal to independents who are key to Collins’ electoral success. Maine state Senate President Mattie Daughtry, a Democrat, is encouraged to see many of the candidates running on Platner’s progressive platform of transformational change. But she’s worried about voters being turned off by the process.
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“I do have that deep seated concern of how many folks are going to say ‘oh well, this man failed me. Why trust someone ever again?’” Daughtry said.
Daughtry did not endorse Platner and she quickly called on him to drop out of the race after the rape allegations surfaced. Still, she thinks his message resonated.
“I ran for office when I was 25 because I was really really angry. I was working 4 jobs. I couldn’t afford an apartment and I had no healthcare. And unfortunately that story has not changed and it is a lived reality for millions of us across this country,” Daughtry said.
“And we need to find who can pick up that mantle. Who understands what that life is like and really tap into that raw energy,” she added.
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Supporters weigh what’s next
Just one month ago, Alan Crichton was playing saxophone at Graham Platner’s primary night victory party. At a brewery in Belfast, Maine this weekend, he noted his ambivalence.
“I have so many mixed feelings. I like the guy. I like his message a great deal and I think he galvanized people who are just kind of sick of what’s happening,” Crichton said.
Now, though, Crichton calls the situation “a big old mess.” As a Democrat, he hoped the charismatic populist Platner would be the one to finally knock out Collins. Though, at this point, he’ll vote for whoever the Maine Democratic party selects.
“I hope it’s somebody who can kind of carry the torch that Graham kind of lit and held out there very strongly. He was a very inspiring guy,” he said.
Joseph Berube of Northport, Maine, gave up on politics in 1972 after Democrat George McGovern lost the race for president in a landslide. This year, though, he got excited about Graham Platner’s candidacy for U.S. Senate.
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Joseph Berube is an independent voter who lives in Northport, Maine. After decades disengaged from politics, Graham Platner sparked something in him he could hardly believe.
“Because I am so apolitical,” Berube said, “I want nothing to do with it. [But] I was actually considering giving money to his campaign.”
Charlotte Agell is on the opposite end of the engagement spectrum. A registered Democrat, she is very politically involved and has been for decades. She met Platner early on in his campaign.
“One of our neighbors said, ‘hey would you like to come to my backyard and meet Graham Platner?’ I had sort of heard of him,” she remembered. “When I went to that back yard event, I just by happenstance walked in with him. It was me and Graham Platner walking in.”
By the time that event ended, she had signed up to volunteer for his campaign.
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“I felt a kinship with everything that was coming out of his mouth basically. Very smart. Good at identifying the problem,” Agell said.
Core to Platner’s economic populist message was that the system has been failing regular people while the rich and powerful get more rich and more powerful. He had faced controversies throughout his campaign. He easily won the nomination anyway. But then came the rape allegation. Berube believes the rush to judgment was too swift.
“I agree with women’s rights and women shouldn’t be abused,” he said. “But to have one person come up and stand up and say, ‘he abused me,’ and then that’s it? It’s just not really fair to him.””I just think they didn’t want him,” Berube added.
Berube says Democrats chopped the legs out from under someone who had brought people back into politics.
“He was bringing in people like me and that’s what’s going to do this. And you know what, we’re in the middle of a war to save this country,” Berube said. “And we have the other side that’s fighting with the gloves off and we’re putting the gloves on. We’re in trouble.”
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Charlotte Agell has been processing it all a little differently. Agell admits to being a chronic optimist but says this was never about one man.
“You know, we’re not a cult. We’re just a movement that wants to take back this country for the middle and the working class,” she said.
Agell wants to believe this massive disruption won’t sap the momentum for change she felt.
“It’s really been like a rocket ship. We’ve all been on it. And that’s why, when these very serious things have been alleged and rightly he has dropped out of the race, we’re kinda still flying at 90 million miles an hour and saying ‘who can take the controls’ and we’re going to figure that out,” Agell said.
State Senator Chip Curry says the state party is doing the best it can with a tight timeline.
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“It’s a winnable race and we’ve got some great people. We’ve got to get there,” Curry said.
There are more than half a dozen announced candidates. And for Democrats the stakes couldn’t be higher. No clear frontrunner has emerged from the candidates who have put themselves forward to be considered. It’s also not clear if one candidate can capitalize on the momentum that Platner was building in Maine. Still, some are remaining optimistic.
“People are going to grumble. I’ve grumbled a little bit. But I think we’ll get through this,” Senate hopeful David Costello predicted. “I think whoever the nominee is will have tremendous support.”
The National Weather Service is predicting a scorcher for parts of western and northern Maine on Tuesday, with the possibility of thunderstorms, high winds and hail.
“The heat and humidity is going to supply energy to the atmosphere,” said meteorologist Hunter Tubbs on Monday. “That energy is going to clash with a cold front expected to come down from Canada tomorrow night. That clash has the potential to produce severe storms.”
The evening storms could bring large hail up to 2 inches in diameter and heavy thunderstorms, but severe winds are likely to cause the most damage, forecasters say. There is a low possibility oftornadoes, according to the severe weather bulletin.
The areas at most risk include Maine’s western mountains and the northern part of Maine, from its northern foothills up to the Canadian border, Tubbs said. There is some risk of severe storms in the south, but not as much, he said.
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Heat and humidity are expected to peak Tuesday, Tubbs said, with heat indices climbing into the upper 90s in cities like Augusta, Lewiston and Waterville. The heat index temperature — or how hot it feels when combining heat and humidity — is predicted to hit 104 in Fryeburg.
The humidity will ease Wednesday, Tubbs said, but the heat will linger into Thursday with highs in the low 90s. By Thursday evening, a gradual cooling trend will emerge that is likely to last into the weekend.
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Penny Overton is excited to be the Portland Press Herald’s first climate reporter. Since joining the paper in 2016, she has written about Maine’s lobster and cannabis industries, covered state politics…
More by Penelope Overton
The poster for “The Texas Carol.” (Courtesy of Lakewood Theater)
“THE TEXAS CAROL”
Don’t miss “The Texas Carol” set to be performed at various times July 16-25 at Lakewood Theater, 76 Theater Road in Madison.
The production by Jayme McGhan and Kevin Dean focuses on the Dinkel family as they head to Mee-Maw Jane’s East Texas ranch for what might be her last Christmas. The only problem? When the first two grandchildren arrive, they discover that Mee-Maw is already gone! Now how to keep that fact (and her body) from a family on the edge and salvage what remains of Christmas?
Starring Donna Irish, Shana Page, Will Stecher, Addie King, Caleb Landry, Quincy Morin, David Shedd and Earl Boyd.
Tickets cost $30-$52 for adults or $23 for children 4-17; lakewoodtheater.org.
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Brothers Will and Reid Nichols, of 12/OC, performing August 2025 at Thompson’s Point in Portland. (Shawn Patrick Ouellette/Staff Photographer)
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12/OC
Bowl in the Pines plans to host 12/OC at 6:30 p.m. Saturday at 1 Geranium Lane in Sidney.
Born in a family kitchen in Portland, 12/OC began as a shared dream between brothers Will and Reid, 14 and 11 years old, cutting their teeth at jam sessions and open mic nights. Their sound quickly resonated beyond Maine, capturing the attention of country music fans near and far. With a chart-topping single holding the No. 1 spot on Maine’s premier country radio station for 16 consecutive weeks, their momentum became impossible to ignore.
Tickets cost $52.73-$84-61; bowlinthepines.com.
Singer-songwriter Alice Limoges. (Photo by Alex Burnett)
Alice Limoges & missofija
Stop in at The Playhouse at Waterville Station at 7 p.m. Saturday for an intimate double‑bill featuring two of Maine’s most compelling rising artists: Alice Limoges and missofija.
Limoges has been singing since before she could walk. Whether performing her award-winning poetic songs about love and nature, or shining a light on mental health, her canon is lit up by her storytelling, unique, soulful voice and textural instrumentals. She has released six original albums/EPs, toured festivals and colleges across North America, and performed on Jon Samson’s Grammy Award winning album. She placed in the 2021 International Songwriting Contest and won the 2025 Maine Songwriting Contest.
After writing her first song at 3 years old, missofija never looked back. Her unique sound is inspired by her background as an opera singer and by the folk songs of her Lithuanian upbringing. She uses profound, symbolic lyrics, intricate melodies and complex harmonic structures to send chills through every audience she performs for.
Tickets cost $20; theplayhouse.me.
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Trombone Shorty will play Bowl in the Pines in Sidney in July. (Photo by Jean Frank)
TROMBONE SHORTY & ORLEANS AVENUE
Don’t miss the Let ‘Em Go Tour set for 6:30 p.m. Tuesday at Bowl in the Pines – Amphitheather 1 Geranium Lane, Sidney.
Perhaps the most recognizable ambassador for New Orleans music working today, Shorty has spent his entire life carrying the torch for Crescent City culture, and propelling it forward into the 21st century with his ecstatic live performances and intoxicating blend of rock, funk, soul, jazz, blues, hip-hop, and Caribbean influences.
Born Troy Andrews, Shorty made his first appearance at New Orleans’ iconic Jazz Fest at 4 years old, when he took the stage for an impromptu performance with Bo Diddley. By 6, he was heading up his own brass band, and by his early 20s, he’d released the first in a string of albums that would lead to performances everywhere from the White House and the Grammy Awards to Madison Square Garden and the 2025 Super Bowl.
Tickets cost $63-$120; bowlinthepines.com.
THE PRINCESS CONCERT
Check out The Princess Concert set for 3:30 and again at 7 p.m. Tuesday at the Waterville Opera House, 1 Common St. in Waterville.
The performance will pay tribute to the iconic, heartwarming, and nostalgic songs from films including “Frozen,” “Wicked,” “K-Pop Demon Hunters,” “Moana,” “The Wizard of Oz,” “Beauty & The Beast,” “Anastasia,” “Pocahontas,” “Aladdin,” “The Little Mermaid,” “The Lion King,” “Willy Wonka & the Chocolate Factory” and more.
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Tickets cost $30-$67 for ages 16-plus; operahouse.org.
BLACK WOLF BAND
Waterfront Wednesday plans to host Black Wolf Band at 6 p.m. Wednesday in downtown Augusta.
The weekly Waterfront Wednesday events scheduled through Aug. 5 will feature free music, food and family fun returning to the Kennebec River.
Each week, concertgoers can bring a lawn chair or blanket and settle in for live music from local bands and DJs. There will be a food truck at every event.
For more information visit mainstreetmaine.org.
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Looking for more? Check out theonline calendar listings for other entertainment offerings.
