Maine
The world’s largest 3D printer is at a university in Maine. It just unveiled an even bigger one
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.
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 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.
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.
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.
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.
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
Opinion: Owen McCarthy offers Maine Republicans real change
The BDN Opinion section operates independently and does not set news policies or contribute to reporting or editing articles elsewhere in the newspaper or on bangordailynews.com
Michael Capeci is the former chairman of the Bangor GOP.
Let’s be honest about Maine’s current state.
For many families, the cost of living has become unsustainable. Housing is out of reach for many young people. Energy bills keep rising. Many small businesses are struggling under taxes and regulations that make it harder to grow. Rural hospitals are under strain and despite years of increased state spending, the results are not showing up in people’s daily lives.
Concurrently, Maine continues to lose young workers to other states. That is not a statistic, it is a warning sign.
To me, the question in this Republican primary for governor is not about slogans. It is whether we continue with a political approach that has failed to reverse these trends, or whether we nominate someone with new ideas. I think that someone is Owen McCarthy.
Owen is not a political insider. He is an entrepreneur from Patten, a small town where opportunity is not assumed, it is built. He grew up in a working-class family, became the first in his family to graduate from college graduating from the University of Maine, and founded MedRhythms, a healthcare technology company focused on neurological treatment.
He didn’t just talk about opportunity. He built it. That distinction matters, because Maine’s problem is not a lack of debate it is a lack of results. We have seen the trajectory: higher costs, slower growth, and a steady outmigration of young workers. I believe Owen McCarthy represents a break from that pattern.
His Maine 2040 plan focuses on creating 50,000 new jobs in sectors where Maine has real advantages — maritime and defense, advanced forest products, and life sciences. These are export-driven industries tied directly to Maine’s workforce, geography, and institutions. What sets Owen apart is not only what he proposes, but how he approaches governing.
He prioritizes modernizing permitting so projects do not stall. He supports using technology to reduce costs and increase efficiency. He focuses on making it easier to build, hire, and expand in Maine.
That same practical mindset extends to healthcare. Expanding telehealth, strengthening EMS systems, improving provider flexibility, and shifting toward earlier intervention are not abstract reforms. They are system upgrades designed to improve access while controlling costs.
Maine voters consistently respond to competence. They reward candidates who understand problems and present plans to solve them. I believe they are tired of rhetoric that does not translate into results, and skeptical of politics that prioritizes messaging over execution.
Owen’s approach is grounded in solving the issues that shape daily life — affordability, healthcare access, job creation, and government efficiency. That is not just policy positioning. It is a governing model that speaks directly to voters.
Some will point to his lack of political experience. But I believe Maine’s core problems are not the result of insufficient political experience; they are the result of policies that have failed to deliver measurable improvement. Experience inside a broken system, by itself, is not a solution.
If Republicans want to win, this primary must be taken seriously. From my perspective, it is not about choosing a nominee for governor who can energize the base. It is about selecting someone who can compete in a broader electorate that is frustrated and looking for change.
That requires a candidate who can speak beyond the base, not by abandoning principles, but by demonstrating competence and a credible plan to address Maine’s challenges. I believe Owen McCarthy offers that combination. He represents a shift away from managed decline and toward economic execution.
This is not just another primary. It is a decision about whether Republicans position themselves to win Maine or whether they remain trapped in a cycle of repeating the same strategies and expecting different outcomes.
If Republicans want to compete for Maine’s future, they cannot afford to nominate a candidate who only motivates part of the electorate. They need someone who expands it.
I believe Owen McCarthy is that candidate.
And if the goal is to win Maine, then the choice should be unmistakable
Maine
Stalwart 7 in Varsity Maine baseball poll
The only notable change in the top-seven of the Varsity Maine baseball poll is that Gorham now has eight first-place votes, two more than last week. The order of the seven teams is identical. In fact, the only change in the top-seven over the past three polls is the swap at the top after Gorham’s win over South Portland on May 19.
Furthermore, Gorham, South Portland, Oxford Hills, Cheverus, Bangor, Mt. Ararat and Fryeburg have been ranked in the top seven for four straight weeks, and six of those squads have been among the top seven in every poll this spring.
Meanwhile, Scarborough is ranked for the first time since May 5, and Ellsworth and Thornton swapped spots.
The Varsity Maine baseball poll is based on games played before June 2, 2026. The top 10 teams are voted on by the Varsity Maine staff, with first-place votes in parentheses, followed by total points.
1. Gorham (8) 89
2. South Portland 79
3. Oxford Hills (1) 75
4. Cheverus 55
5. Bangor 42
6. Mt. Ararat 41
7. Fryeburg Academy 30
8. Ellsworth 27
9. Thornton Academy 25
10. Scarborough 12
Also receiving votes: Washington Academy 8, Monmouth Academy 4, Cony 4, Leavitt 2, Falmouth 2.
Maine
Maine harbormasters are having a moment. What do they do?
Harbormasters are the municipal protectors of Maine’s 5,300-mile coastline, where a single day might include tasks as diverse as saving a sinking skiff, sorting a same-day mooring request and seizing undersized quahogs.
The job has existed for more than a century, but a buzzworthy political campaign and a heated lobster turf war have elevated this obscure government position to a new level of visibility in the public discourse, even if few people know what they really do.
“No day is the same,” says Daryen Granata, harbormaster and shellfish warden for Scarborough and Cape Elizabeth. “Ride in my truck or my boat for a week, and I can practically guarantee you that we wouldn’t do the same thing twice.”
Graham Platner used his $3,000-a-year gig as Sullivan’s former harbormaster to help frame his run for U.S. Senate. Meanwhile, South Thomaston hopes that hiring a harbormaster can resolve a dispute over dock access that some lobstermen say threatens their livelihoods.
Beyond the headlines, however, the duties of Maine’s 250 or so harbormasters vary from town to town. Some are highly paid police officers with arrest powers; others are seasonal mooring managers, like Platner was before he resigned in August, according to the town manager.
“Most people doing this job aren’t doing it for the money,” says Granata, who is vice president of the Maine Harbor Masters Association. “They’re doing it to be a steward, to be an ambassador of the harbor.”
Platner, who operates an oyster harvesting business, said he took the post to make sure the person hired to “run the show” had local waterfront experience. He said he was “bummed” that he had to give up the role due to his campaign schedule.
“There is something to be said about working-class folks coming together over the water despite their differences, all with the same goal in mind — to protect and preserve their way of life,” he said.
South Thomaston was one of Maine’s rare shoreline communities that had resisted hiring a harbormaster. Residents preferred to solve their own problems to keep their mooring prices artificially low. But that changed when a lobster turf war broke out.
The town is now advertising for a per-diem harbormaster to resolve the dispute.
A typical day for Granata might start by answering office emails at 7 a.m. and end with a 5 p.m. radio call about a boat sinking off Prouts Neck. In between, he juggles calls for illegal fishing, a shark sighting and a boat diesel spill, all while juggling walk-ins.
One of the most time-consuming parts of a harbormaster’s job, regardless of whether they are a police officer or a seasonal volunteer, is managing the vessel placements, or moorings, in their local harbor, Granata said.
Maine has more than 30,000 moorings. Small harbors may have a couple dozen, but larger ones can have up to 1,300. The harbormaster ensures each one is in the proper location with enough depth for a boat’s draft and enough anchor to hold it in place.
Unlike their counterparts in warmer climates, Maine harbormasters face a seasonal scramble. Because of winter ice, most of the state’s moorings must be pulled ashore in the fall and reset each spring to avoid being dragged around by moving ice.
The role is also one of public safety. Harbormasters coordinate with the U.S. Coast Guard and Maine Marine Patrol on search-and-rescue operations, monitor for navigational hazards, and inspect critical marine infrastructure like piers, docks and cranes.
In Portland, harbormaster Paul Plummer and his six seasonal deputies spend a lot of time keeping Portland Harbor safe — from marine debris that could cause accidents, from environmental threats, and from commercial-recreational boating conflicts.
His office escorts big commercial vessels through the busy harbor to protect the people in kayaks and sailboats that fill it up during the summer, many of whom are not familiar with Maine landmarks and water rules, Plummer said.
“We are out in the harbor and visit the islands every day,” Plummer said. “It’s not just to protect boats, but also the fragile working waterfront infrastructure. We have a lot of old piers and wharves that require a lot of care but are critical to our economy.”
Despite these differences, state law requires all harbormasters to get certification through the Maine Harbor Masters Association within a year of taking the job. The four-day certification must be renewed every three years.
Success in the role requires more than a technical knowledge of shackles and swivels, Granata said. Harbormasters must be able to shift from “swearing like a pirate” with a lobsterman to politely guiding a Vineyard Vines-clad tourist to a local luncheon spot.
“You can’t be down here being a stiff shirt,” Granata says. “This job is crazy, but it’s a privilege. Drinking straight from the hose, every day. You never get a break, not really, but you never get bored, either.”
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