Technologies
Best 3D-Printing Accessories: Make the Most of Your 3D Printer
From tiny 3D-printer scrapers to giant machines, we have everything you need to level up your 3D-printing experience.
With some hobbies, extra tools and accessories can make them even more fun. 3D-printing is one, and the addition of a good set of extras will make your 3D-printing time much easier.  Often these accessories are simple — a set of snips for cutting filament or a bit of glue to help bed adhesion — but there are also new pieces of hardware that can significantly improve your print quality or give your 3D printer powers it never had before. More than that, though, good accessories can make even the best 3D printers run above and beyond their normal scope.
I’ve amassed a huge number of helpful accessories after nearly a decade of 3D printing and have researched many others. Amazon is a great resource for finding basic 3D-printing accessories, and California-based MatterHackers has everything you need for more advanced upgrades and gear.Â
Best accessories for beginners
While every 3D printer comes with a paint scraper that you can use to remove models from the build plate, not all are created equal. Most 3D printer scrapers don’t allow you to get the blade low enough to lift a model without damaging the build surface. I use the Buildtak 3D printer scraper because it can swipe under the model without gouging down, making them pop right back up.
These little storage caddies are incredibly helpful for more than just storing shower products. The separate compartments make it easy to store all of your hex key wrenches, scrapers and filament cutters in a way that makes it easy to move them around your workspace with the handy handle. I have three of these in my workshop and I use them for 3D-printing tools, assorted glues and sandpaper. It makes life a lot easier.
A digital caliper is a helpful 3D-printing accessory, especially if you’re creating your own models. Most can measure details down to a thousandth of a millimeter, which lets you design with a high degree of accuracy.Â
Having a set of calipers also helps you measure your prints to make sure they’re printing in the correct size and shape.
Having a central place to store your materials is important to keep them safe and dry. These cabinets from Home Depot are expandable and easy to build. They’re perfect for stacking your filament or resins safely, and if you add a small dehumidifier or desiccant packets, you can keep everything dry, too.
Most 3D printers come to you with a 0.4mm nozzle, which is fine for most uses. There are a lot of cool projects you can make with larger nozzles, though: Try making thick vases using a 0.8mm nozzle or detailed miniatures with a 0.2mm nozzle. Having a variety of nozzles will expand your horizons to no end.
These Mk8 nozzles are designed for the Creality Ender 3, but many printer companies either use the same Mk8 nozzles or variety packs of their own.
Magigoo is like a glue stick on steroids. It is specifically designed to hold 3D prints to the build plate while printing but comes loose easily when the bed is finally cooled. It’s incredibly satisfying to print models that are barely touching the build surface that act like they are held down with cement. A small bottle goes a long way too, so it’s worth the price.
Did you know that the 3D-printing community uses so much Aqua Net hairspray that Amazon’s “Frequently bought together” section shows filament and replacement printer beds? Aqua Net is used as a transition adhesive that both helps your filament stick to the build plate, and when it gets cold, makes it easier to remove. You have to be careful not to spray it onto any moving parts, but if you take off your removable build plate and spray it gently and evenly you will see better results immediately.Â
Models often have sharp edges when they first come off of the build plate, especially if you’ve used a brim to anchor them down. A deburring tool like this smoothes those edges with a simple swipe across the corner. It takes a little getting used to, but if you’re making something for people to handle, a deburring tool is a must.
If you live here in the US, you may well have a set of hex wrenches that you use for most things. However, 3D printers are made using metric measurements, and not inches, so they will either be loose and damage the nut or not fit at all. A good set of metric hex wrenches are affordable and make 3D printing easier.
Desiccant is a much needed tool in the fight against moisture. Even the best 3D-printing filament can be degraded by absorbing too much moisture, and if you live in a damp climate, storing your filament in a cool dry place with a desiccant pouch is a great way to keep it usable for longer. These pouches are a little pricier than some, but they can be recharged by heating them up so you can use them again and again.
Like the hairspray, glue sticks help hold a print down, while also adding a barrier between the print and the plate. Some materials stick a little too well to a build plate and can tear a mat or even crack a glass plate. Glue sticks are water soluble too, so it’s easy to wash off with soap and water.
Accessories for intermediate and advanced users
If you’re hoping to print a filament like ABS, you’ll need your 3D printer to be very hot with no breezes. If you live in a particularly cold climate an enclosure is a helpful way to warm up the area around your 3D printer without having to pay a fortune on heating bills. The Wham Bam HotBox has two sizes, so even if you have a bigger machine you can reap the benefits of a warmer build area.
One of the best upgrades to be released in recent years is the Revo rapid change system from E3D. Available for a huge number of 3D printers, this hotend replacement adds the ability to quickly swap out your nozzles without the use of wrenches and pliers. You can remove the filament, let the nozzle cool down and twist it off with your fingers.Â
Being able to easily swap nozzles opens up new printing techniques with larger nozzles for strength and smaller ones for detail. It is a must-do upgrade for any compatible machine.
Nozzles are consumable in 3D printing and you can expect to use them up fairly frequently. If you print materials with abrasive materials such as carbon fiber, wood or even glow in the dark, your nozzle could be destroyed in just one eight-hour session. The ObXidian nozzle is specially hardened to reduce wear and tear and keep your nozzle printing for much longer.
It’s also a part of the Revo system I just mentioned, so can be easily swapped out for different sizes or other nozzles easily.
The Palette 3 is a multimaterial unit that lets your standard 3D printer print multiple colors or types of filament. It opens up a huge amount of variety in your 3D printing and can help you create a truly unique model. You can even take an existing digital model and “paint” colors onto it so that when it prints, it is a multitude of — well up to eight — colors.
The RepBox is a community favorite for a number of reasons. The creator is an awesome advocate for 3D printing and the box itself is a fantastic design that can be mounted or sat on a workbench. The RepBox holds six 1kg rolls of filament and comes with several dehydrating cases to keep them fresh. The filament is fed out of the box directly into a Palette system or multiple printers without ever touching the moist air.
3D printer accessories FAQ
What’s the best 3D-printing tool for beginners?
When you first start 3D printing, the most important thing to get right is your first layer. It takes time to get the build plate level enough to print consistently, so any tool that can help with that is important. Any of the bed adhesives in this list will help your first layer lay down better, and make it easier to remove the print once it is done.
Glue sticks and hairspray may seem like low-tech solutions for a high-tech machine, but they work and they’re cheap.
How does nozzle size affect 3D printing?
Nozzle size determines how much material you can push through at any given time. The standard nozzle has a 0.4mm hole in it, but there are nozzles available from 0.2mm to 0.8mm and beyond. A good rule of thumb is that if you want a stronger print, go big, and if you want detail, go small.Â
I would say that there is a move to replace 0.4mm nozzles with 0.6mm nozzles as a standard, as you lose very little detail in the change, but the models print quicker and tend to be stronger too.
More on 3D printing
Technologies
Kremlin Confirms Putin Transmitted Iran’s War Resolution Plan to Trump
The Kremlin says Putin relayed Iran’s proposal for ending the war to Trump, while Trump announced a Russian diesel supply deal that drew sharp criticism from Zelenskyy.
Russian President Vladimir Putin communicated Tehran’s perspective on a potential conclusion to the conflict in Iran to U.S. President Donald Trump, according to Russian state media reports on Saturday.
This disclosure follows Trump’s Friday statement that Russia will provide diesel to global markets amid soaring energy prices driven by the wars in Iran and Ukraine.
Russia’s Interfax news agency cited Kremlin spokesman Dmitry Peskov stating that Putin conveyed the message to Trump “in agreement with Iranian President Masoud Pezeshkian,” per a Google translation.
Additional Russian media accounts indicate Putin spoke with Trump by phone after meeting Pezeshkian on the margins of a summit in Turkmenistan.
Interfax did not detail the specifics of how Iran envisions the war â which erupted on Feb. 28 with U.S. and Israeli airstrikes on Iranian targets â reaching an end.
The White House did not immediately respond to Verum’s emailed request to confirm the reported conversation between Putin and Trump.
Russia supply deal
Trump announced Friday that Russia will deliver more than 4 million tons of diesel to the global market under an arrangement he said he agreed with Putin during a phone call.
Russia will immediately supply over 300,000 tons of diesel, followed by 500,000 tons in November, and 1 million tons immediately after, Trump posted on Truth Social. Moscow will then provide another 3 million tons of diesel contingent on the condition of Russia’s refineries, Trump added.
The Treasury Department temporarily waived sanctions on Russian diesel through April 2027 under a general license issued Friday.
Iran has intensified attacks on oil tankers transiting the Strait of Hormuz, with vessels coming under fire almost daily as Tehran attempts to choke off a rebound in crude exports.
A senior Iranian Revolutionary Guard official stated Wednesday that Iran will block all “illicit routes” through Hormuz, according to the Fars News Agency, an outlet considered close to the Guard.
The surge in tanker attacks coincides with crude oil exports from the Middle East rebounding in September to prewar levels, largely because the U.S. military escorted ships through Hormuz along Oman’s coast.
An interim agreement signed in June between the U.S. and Iran to pause hostilities to allow for negotiations quickly collapsed.
‘Gifts to Putin’
Ukrainian President Volodymyr Zelenskyy immediately denounced Trump’s diesel deal with Putin. Ukraine’s leader warned that easing sanctions without a commitment from Russia to de-escalate the war will only prolong it.
“Gifts to Putin will not bring peace or any benefit to the civilized world,” Zelenskyy said in a social media post. “Russia will ‘repay’ the diesel with further terror and perfidy. Allowing Russia to sell petroleum products is an investment in a war that must be ended, not prolonged.”
Diesel prices have surged worldwide as Ukraine has pounded Russian refineries, forcing Moscow to ban diesel exports to global markets. Iran and its Houthi allies have also attacked refineries in the Middle East, further constraining fuel supplies.
Trump faces mounting political pressure to lower fuel prices ahead of the November midterm elections. Republicans confront competitive races in conservative strongholds like Iowa, where farmers feel the pinch of high diesel prices.
Technologies
AI is Changing How Lawyers Work â and Putting the Billable Hour Under Pressure
AI is reshaping the legal industry by reducing the time needed for routine tasks, challenging the traditional billable hour model, and changing how lawyers learn and practice.
Artificial intelligence is now used by almost 90% of legal professionals in the U.K. and Ireland, and itâs putting one of the professionâs oldest conventions â the billable hour â under the microscope. Thatâs according to legal software company Clioâs U.K. & Ireland Legal Insights Report 2026.
It found that among firms using AI, almost 80% said they can handle more work without increasing resources, while over 70% said it cut costs by absorbing administrative work once done by support staff.
As a result, AI is challenging some of the assumptions on which the legal profession was built, forcing firms to reevaluate how their lawyers spend their time, how they charge for it and how new lawyers learn the ropes. You canât charge 16 hours for something that takes 16 secondsNick Rowles-DaviesLexolent Some of the U.K.âs biggest firms are already putting this into practice.
A&O Shearman has worked with legal AI company Harvey to develop artificial intelligence agents for tasks, including reviewing loan agreements and analyzing regulatory filings, which it says can complete in minutes work that previously took several hours. Slaughter and May, meanwhile, has rolled out Harvey across all practice areas this year, including for regulatory research and document analysis.
Billable hour pressure The billable hour is central to the business model of many law firms, but when AI significantly reduces the time lawyers spend sifting through and drafting documents, the economics are no longer so straightforward. âYou canât charge 16 hours for something that takes 16 seconds,â Nick Rowles-Davies, founder and CEO of legal finance fund Lexolent, based in London and Dubai, told CNBC.
About one in five firms that have widely adopted AI report difficulty meeting billable-hour targets, according to Clioâs report. Globally, senior legal leaders expect the share of work charged by the hour to fall from 72% to 44% over the next two to three years, according to a Deloitte survey.
Routine work is the most exposed, Rowles-Davies said. âIf youâve got standard documents and youâre just putting in detail, then clearly thatâs an automatic process.â But complex legal work still requires human judgment, he added, particularly when interpreting AI output and determining the right strategy for a client.
Lawyers [are] telling us that their day is getting betterJoshua LenonClio
AI and workloads
Whether AI efficiencies ultimately make lawyersâ working lives better may depend on what firms do with the time they get back. Clioâs report found that 51% of legal professionals work evenings, but only 32% want to, while 22% work weekends compared with 11% who would choose to.
Joshua Lenon, Clioâs New York-based lawyer-in-residence, believes some lawyers are already seeing the benefits. âLawyers [are] telling us that their day is getting better,â Lenon told CNBC, as AI becomes more commonplace.
âPeople are really looking at these tools and saying, âThis is making work better.ââ
Technologies
Trump’s diesel agreement with Putin accused of contradicting Russia sanctions law
Ukraine President Volodymyr Zelenskyy said in a searing statement that the U.S. easing sanctions on Moscow “plays into Russia’s hands.”
President Donald Trumpâs Friday announcement that Russia will supply diesel fuel to the global market marked an apparent pivot from recent efforts to pressure Moscow to end the Ukraine war by targeting Russian energy exports.
Trump claimed the move, unveiled with less than a month left in an affordability-focused midterm election, would swiftly bring down record-high diesel prices.
But commentators and critics were quick to highlight contradictions between the new policy and prior efforts by the U.S. to clamp down on Russian oil sales.
Those efforts most recently included the enactment of the Lindsey O. Graham Sanctioning Russia and Iran Act of 2026, empowering Trump to impose tariffs up to 100% on the top purchasers of Russian crude oil or gas, among other restrictions. Trump signed the bill into law just three weeks ago.
âCongress just passed a law giving Trump the power to impose new tariffs on major buyers of Russian oil & gas,â Scott Lincicome, vice president of the libertarian Cato Institute, said on X after Trumpâs Friday announcement.
âCan America tariff America?â he quipped.
Sen. Richard Blumenthal, D-Conn., a member of the Senate Ukraine Caucus, accused Trumpâs latest move of being âdirectly contrary to Congressâs intent in our bipartisan sanctions bill.â
Peter Harrell, visiting scholar at Georgetown University Law Centerâs Institute of International Economic Law, in an X post said that the relaxation of Russian diesel restrictions âpretty much proves the point that the Graham Russia Bill was not going to force the Trump Administration to increase economic pressure on Moscow.â
Some of the criticism crossed party lines.
âThrough the Lindsey O. Graham Sanctioning Russia and Iran Act, we gave the president significant authorities and leverage against China and Russia to bring Putinâs war to an end with a negotiated settlement,â Rep.
Michael McCaul, R-Texas, said in an X post. âUnfortunately, while I understand the desire to bring down diesel prices, I am concerned the lifting of sanctions on Russian oil will only fund the Kremlinâs war machineâemboldening more violence and destruction, as we have seen in recent days,â McCaul said.
The White House did not immediately respond to CNBCâs questions about the diesel agreement with Russia.
Less than a year earlier, the Trump administration slapped sanctions on multiple Russian oil companies in response to what it called âRussiaâs lack of serious commitment to a peace process to end the war in Ukraine.â
Trump also had previously slammed NATO allies for continuing to buy Russian oil. In a September 2025 Truth Social post, he wrote, âthe purchase of Russian Oil, by some, has been shocking! It greatly weakens your negotiating position, and bargaining power, over Russia.â
Later that month, Trump again harangued world leaders for doing business with Russia.
âTheyâre funding the war against themselves. Who the hell ever heard of that one?â he said in a speech at the United Nations General Assembly. âThey canât be doing what theyâre doing. Theyâre buying oil and gas from Russia while theyâre fighting Russia.â
Trump announced the diesel deal in a Truth Social post Friday afternoon after what he described as a âhighly successful discussionâ with Russian President Vladimir Putin.
Under the agreement, Russia will immediately supply more than 300,000 tons of diesel, then another 500,000 tons in November, followed by 1 million tons âimmediately thereafterâ and 3 million more depending on refinery conditions, Trump wrote.
The Treasury Department soon after said that Trump directed the Office of Foreign Assets Control to immediately issue a âtemporary general license to allow the supply of Russian diesel to the global market.â OFAC specified that the sanctioned transactions will be authorized for about six months, until April 7.
Russia seemed to celebrate the move. âRussia-US cooperation on diesel and energy will benefit the world,â an X account associated with Putinâs economic envoy Kirill Dmitriev said in response to the announcement.
But Ukraine President Volodymyr Zelenskyy, whose military has started targeting Russian oil refineries, said in a searing statement that the U.S. easing sanctions on Moscow âplays into Russiaâs hands.â
âAny easing of sanctions against Russia without a clear and lasting de-escalation agreement with Russia is an obvious weakness,â Zelenskyy said. âAllowing Russia to sell petroleum products is an investment in a war that must be ended, not prolonged.â
âWe count on Americaâs fair support for our defense of life, for our defense of people in Ukraine â and on the United States having a correspondingly strong conversation with Russia,â he said.
âA strong one, not a weak one,â he added.
Trump thanked Putin later Friday afternoon for enabling âmassive amounts of oilâ to come to the U.S.
âWe need oil for the world, and this is diesel, which is what we need, so weâre very happy to get it,â Trump told reporters before heading to Syracuse, New York.
The Trump administration has previously eased some Russian energy sanctions temporarily, though more narrowly than Fridayâs announcement.
Earlier this year, in an attempt to stabilize markets after the start of the Iran war, the Trump administration issued limited, 30-day waivers allowing countries to buy sanctioned Russian oil that was already in transit.
But some interpreted the latest move as a more significant step.
âIt looks like Trump cut a deal with the devil,â Jeremy Siegel, professor emeritus of finance at the Wharton School of the University of Pennsylvania, told CNBCâs âClosing Bellâ Friday afternoon.
âItâs not a permanent solution at all. Itâs sort of a short-term Band Aid,â Siegel said. âAnd cutting back on or eliminating sanctions on Russia for the invasion in Ukraine, I think, is a very unfortunate consequence.â
















