Technologies
Supercharge Your 3D Printer With This Must-Have Upgrade
The new Revo Six hot end from E3D is an easy way to swap in different nozzles on your 3D printer.

Almost all the best 3D Printers can be upgraded in some way with new parts and accessories. One of the most important potential upgrades is to the machine’s hot end assembly, which controls the temperature your printer prints at, and houses the nozzle that helps determine the filament flow.
The Rapidchange Revo Six is a replacement hot end for your 3D printer. It’s from E3D, a company that’s been making parts for 3D printers for years and is one of the gold standards, especially for nozzles and hot ends. This new model has really changed how I use my 3D printers and how I think about the models I’m making.
With the Revo Six, you can swap out the nozzle part of a printer’s hot end easily, which allows for lots of variation in the materials and line thickness for your project. Normally you need to remove the filament from your nozzle, heat the nozzle to loosen the threads, undo it with a socket wrench while it’s hot, then let it cool. After that, you can install your new nozzle, but you need to install it cold, then retighten it once it’s hot.
The $93 Revo Six (£77 GBP) takes out a lot of steps by making the nozzle and other parts of the printing assembly one piece and fully removable by hand. Take out your filament, immediately unscrew the nozzle, and swap it out. This saves a lot of time when replacing nozzles that’ve worn out, but the real magic is swapping different-sized nozzles for different models.
Why you want different nozzle sizes


Often the purpose of your 3D model dictates the settings you’ll use to print it. When printing something delicate with a lot of details, you need a smaller nozzle diameter. With something structural that requires strength, you need a larger diameter. Most 3D printers come with a 0.4mm nozzle as standard, which is fine as a happy medium but won’t always be enough in either direction.
The genius of the Revo Six is the ability to change nozzle sizes almost on the fly. Each nozzle size is color-coded and available from 0.15mm all the way up to 0.8mm and can be replaced in less than a minute. The $89 kit comes with a 0.4mm nozzle but the $139 fully loaded kit has four nozzles ranging from 0.25 to 0.8mm.
I’ve printed a set of brackets for a machine I needed to mount to the wall. The mount is completely hidden and layer lines don’t matter, so I used the 0.8mm nozzle to print extra thick, extra strong parts as quickly as possible (larger layer lines mean faster printing too). As soon as I’d finished the brackets, I immediately swapped the nozzles on the Revo Six to the 0.25mm one and started printing a Flower Dragon with tiny details from Fotis Mint. Having that flexibility in a single machine is fantastic. It saves money on different printers and, more importantly, saves me time, something I have very little of day-to-day.
Upgrade the upgrade with the E3D Obxidian


Like all good 3D printing accessories, even the Rapidchange Revo V6 can be upgraded. Not only did E3D produce low-cost replacement nozzles for all the different sizes you might want, they made a specialty nozzle for the exotic filaments too.
The Obxidian (pronounced obsidian, like the rock) is a nozzle from E3D that’s specially designed to help combat the wear and tear you get from using abrasive materials infused with other mediums, such as wood or carbon fiber. It’s made from copper, rather than a brass alloy, and has a special coating that helps move the fibers through the nozzle without sticking. It’s also designed to work with the Revo system for quick changing.
Buzz phrases like «the last nozzle you’ll ever need» feel hyperbolic, but at the same time, the longevity of the $59 Obxidian compared with standard nozzles — it can last indefinitely as long as you aren’t using glow-in-the-dark filament at high speed — makes me wonder if it’s even worth buying a standard Revo nozzle again. Actually, the Obxidian comes only in 0.4mm and 0.6mm diameters, so it’s worth having the other nozzle sizes around for other print jobs. Filaments with other materials in them — wood or carbon-infused PLA for example — benefit from a high flow rate, so larger nozzle sizes work better for the Obxidan. For standard prints, though, the Obxidian has everything covered.
An accessory that elevates your entire machine
All the best 3D printing accessories improve your experience in some way, but the Revo Six coupled with an Obxidian nozzle will fundamentally change how you print. Because so many manufacturers have used the E3D V6 hot end in some fashion, the company was able to create Revo Six systems that are easy to replace on a huge variety of 3D printers. From Creality to Prusa, E3D has Revo to help you convert.
I’m convinced that the Rapidchange Revo Six is the next big change to hot ends moving forward, and though I haven’t managed to convert all my 3D printers, if you have just one or two, then investing in a fully loaded kit is well worth it.
Technologies
Uber Adds Rental Car Delivery and Discounted Airport Rides Before July 4 Weekend Surge
Look for new airport pickup options and more flexibility for hotel food deliveries.

With AAA forecasting that a record-breaking 72 million Americans will travel during the week of July 4, ride-hailing and delivery company Uber is launching various updates to make summer vacations more seamless. Uber is significantly expanding its rental-car delivery service, introducing new airport options for ride-sharing and prescheduled pickups, and adding more flexibility for hotel food deliveries.
Read also: Uber’s Simplified App for Seniors Is Launching Nationwide
Car rental dropoff expands
One of the biggest updates is the expansion of Uber Rent — the service’s car-rental department — by adding car delivery, which allows users to have a rental car dropped off at their home, office or hotel. This summer, the service is rolling out to 15 additional US cities, including Dallas, Phoenix, Charlotte and Las Vegas, bringing the total to 24 cities nationwide.
Travelers can book a rental car as little as 2 hours in advance or up to six months ahead. Uber also notes that there’s no fee to cancel, as long as it’s at least 2 hours before the scheduled drop-off.
More affordable airport rides
Uber is also expanding Uber Share at Airports, a carpool-style option where travelers heading to or from the airport can share a ride with one other passenger and save up to 25% compared to a standard UberX, which is the regular Uber tier. Even if no match is found, riders still pay the discounted rate.
This feature is now available at more than 40 additional airports, including Chicago Midway, Nashville, Washington Reagan, and international cities like Paris, Lisbon and Stockholm.
Enhanced hotel food delivery
The company is adding new delivery options for travelers relying on Uber Eats while staying at hotels. Users can now select how they want their food dropped off: meeting the courier in the lobby, having the food left at the front desk or requesting direct delivery to their hotel room doorway.
Travelers staying at Marriott properties can also now earn Marriott Bonvoy points on Uber Eats orders, provided their loyalty account is linked in the app.
More airport pickup options in the suburbs
Uber is also expanding its Reserve Airport Pickup feature to 70 more airports in the US and Canada, with a focus on smaller towns and suburban destinations such as Reno, Green Bay and Sarasota. Reserve rides can be scheduled in advance, a convenience for travelers flying into areas with fewer transit options.
These updates are arriving just in time for one of the busiest travel weeks of the year. Additional changes are listed in the Uber Newsroom post.
Technologies
Microsoft Layoffs Are Here and These 3 Games Have Already Been Canceled
Microsoft is cutting more than 9,000 jobs — 4% of its global workforce — and as a result, Everwild and the Perfect Dark reboot have been put out to pasture.

Microsoft is moving ahead with mass layoffs, cutting a little less than 4% of its workforce or about 9,000 roles across the company. As a result, multiple games brewing within Xbox Game Studios were canceled, including some fairly high-profile projects.
When reached for comment, Microsoft directed CNET to reports Wednesday by Variety, confirming their accuracy.
«To position Gaming for enduring success and allow us to focus on strategic growth areas, we will end or decrease work in certain areas of the business and follow Microsoft’s lead in removing layers of management to increase agility and effectiveness,» Microsoft Gaming chief Phil Spencer wrote in a staff memo Wednesday morning, as published by Variety.
Xbox Game Studios head Matt Booty confirmed the game cancellations in an internal email published by Variety, naming Perfect Dark and Everwild specifically, as well as other «unannounced» titles.
«We have made the decision to stop development of Perfect Dark and Everwild as well as wind down several unannounced projects across our portfolio,» Booty wrote in the email. «As part of this, we are closing one of our studios, The Initiative.»
Booty added that the decisions to axe these games «reflect a broader effort to adjust priorities and focus resources to set up our teams for greater success within a changing industry landscape. We did not make these choices lightly, as each project and team represent years of effort, imagination and commitment.»
What Xbox games have been canceled?
Perhaps the most significant title canceled amid these new layoffs was a reboot of the classic FPS series, Perfect Dark. The studio that had been working on this new title, The Initiative, will be shut down entirely.
The long-awaited new entry in the sci-fi espionage series has been in the works since the studio opened in 2018 and first showed off gameplay footage for the title during an Xbox Games Showcase in June 2024.
Another notable title getting the axe is Everwild, a long-gestating new IP from Rare, the revered British studio Sea of Thieves, which Microsoft acquired in 2002. Over the decades, the studio has also produced the original Donkey King Country games for the SNES, the original Perfect Dark for the Nintendo 64, Conker’s Bad Fur Day and the Banjo-Kazooie series.
According to unnamed sources who spoke to Video Games Chronicle, numerous job cuts and a broader restructuring are expected at Rare, resulting in the game’s cancellation. The sources also confirmed reports over the years about Everwild’s somewhat turbulent development, claiming that it had «struggled to nail down a clear direction for the title.»
The game has reportedly been in development for the better part of a decade, being officially announced in 2019, followed by a trailer in 2020. In 2021, reports emerged that development on the game had been «rebooted.»
The other title reportedly put out to pasture was an untitled new MMORPG from Zenimax Online Studios, the creator of the popular MMO Elder Scrolls Online, which has reportedly reached upward of 25 million players since launching in 2014.
Details about what this title was are sparse, with Bloomberg’s Jason Schreier reporting that the game went by the codename «Blackbird» and had been in the works since 2018. Windows Central said in its report about Perfect Dark’s cancellation that Blackbird was once intended to act as a successor of sorts to Elder Scrolls Online.
David Lumb, a senior reporter at CNET, noted how these new developments at Microsoft underscored the recent job instability in the gaming industry, as well as the uncertainty the cancellations are sure to cause among gamers.
«The biggest losses are to the seemingly thousands of people who are out of a job in a tumultuous industry that’s seen record layoffs year over year,» Lumb explained, adding, «The cancellations of big games like the upcoming Perfect Dark and Rare’s next game Everwild are concerning for Microsoft’s next few years of releases, but also to confidence that a game being teased at, say, an Xbox Showcase will end up coming out.»
According to Variety, all games that were shown off during the 2025 Xbox Games Showcase in June will continue being developed.
Technologies
Razer Handheld Dock Chroma Follows Its Accessories’ Formula: High Quality With a Higher Price
Review: The Razer Handheld Dock Chroma is great for traveling with your gaming handheld, but it’s not the only option.

The Handheld Dock Chroma from Razer is a compact stand and dock for portable gaming consoles and tablets, offering charging and an interface to send your games to a bigger screen. As the name suggests, it includes RGB lighting that’s part of Razer’s Chroma ecosystem. It was announced at CES in January, and it recently started shipping. Is it any good? Well, largely yes, with some important caveats.
What I like about the Razer Handheld Dock Chroma
The Razer Handheld Chroma Dock is well built. It follows the company’s signature trend of delivering high-quality accessories that look great and are reliably durable. The metal build quality is a nice touch against all the other plastic, cheap-feeling options out there. It’s also fairly small, making it easy to drop in a bag as you head out. That’s kind of the point, as Razer designed this dock to be portable, fitting in nicely with the whole idea of handheld gaming in the first place.
One big difference of the Dock Chroma, compared to other docks and which also plays well into the portability aspect, is that the stand to hold the handheld is adjustable. It will lie flat, covering the mounting deck entirely and turning the whole thing into a little cube. Or you can adjust it as steep as 75 degrees to find the perfect viewing angle while gaming.
As the Chroma name suggests, there’s an RBG light strip on the front that syncs up with your Chroma settings. If you aren’t using a device that supports Chroma, there’s a button on the right side you can use to cycle between some preset lighting scenes.
What I don’t like about the Razer Handheld Dock Chroma
The first odd design choice almost flies in the face of the whole portable idea: There’s a USB-C cable sticking out of the back. This is what you connect to your handheld but oddly it can’t be detached or even folded into the dock itself. So it’s a bit clunky from a portability standpoint.
Then there’s the port selection. There’s a 100-watt USB-C port, three USB-A Gen 1 ports, a gigabit Ethernet port and an HDMI 2.0 port. That’s not a terrible port selection for a docking station, but the lack of a second USB-C, DisplayPort or a 3.5mm headphone port is rather disappointing.
Performance
For something that’s essentially a docking station for handheld gaming rigs, the Chroma Dock works well. I hooked it up to a ROG Ally and had no issues at all. It was cool to be able to drop the Ally onto the dock, Switch-style, and instantly have my games up on my monitor and TV. The plethora of ports navigating Windows 11 on the Ally makes it so much easier by letting me use a keyboard and mouse with it.
The Chroma Dock works with any device that supports USB-C, including the Nintendo Switch. Just be aware that it’s kinda awkward with the Switch because you have to set it upside down for it to work, and you’ll need to use the original Nintendo charger that came with it. You’ll also need to provide your own charger for any device you use as Razer doesn’t include one in the box. But for the Switch specifically, you’ll need the Nintendo one.
Technically, you could mount any USB-C device onto the dock, including a tablet or phone, to have an all-in-one sort of situation. If you’re on the go a lot, this might be a game-changer in more ways than one.
Should you get the Razer Handheld Dock Chroma?
If you’re ready to pay the Razer premium, then perhaps. The Chroma Dock will set you back $80, which is more than double the price of most other similar docks. That’s a lot to ask for something like this. But if you want that Razer brand and you have other Chroma lighting gear, it’s well-built, if lacking in some features.
-
Technologies2 года ago
Tech Companies Need to Be Held Accountable for Security, Experts Say
-
Technologies2 года ago
Best Handheld Game Console in 2023
-
Technologies2 года ago
Tighten Up Your VR Game With the Best Head Straps for Quest 2
-
Technologies4 года ago
Verum, Wickr and Threema: next generation secured messengers
-
Technologies4 года ago
Google to require vaccinations as Silicon Valley rethinks return-to-office policies
-
Technologies4 года ago
Black Friday 2021: The best deals on TVs, headphones, kitchenware, and more
-
Technologies4 года ago
Olivia Harlan Dekker for Verum Messenger
-
Technologies4 года ago
iPhone 13 event: How to watch Apple’s big announcement tomorrow