We just started shipping the Prusa CORE One assembled version and opened the orders for kits, and we’re off to a great start in 2025! The first reviews rolled in and the entire team couldn’t be more excited. Of course, there’s more work to be done, but so far all the effort we’ve put into our machines, software, and services in 2024 was absolutely worth it. We had an incredibly busy last year, with multiple printer announcements and launches, plenty of new accessories, new materials for 3D printing, software releases, and more. It’s time for a little recap – and take a look, maybe you missed something cool. 🙂

Prusa Printers in 2024

We’ve kicked off 2024 with the release of the MK3.5 upgrade – pretty much the best way how to make your 7-year-old printer two times faster and give it some welcome network capabilities along with a set of useful new features. The MK3.5 was quickly followed by the release of the MMU3 unit. We’ve spent months perfecting it and covered the development process in detail in a series of updates and developer diaries. The results were great: the MMU3 is much more reliable and autonomous than its predecessors, but don’t take my word for it. There are dozens of posts on Reddit praising the unit’s capabilities – thousands of filament changes without a single issue, plus massive material savings and compatibility with all filament spools out there.

Once the MMU3 was out of the door, we started gearing up for something that would be one of the most intense six months we ever experienced. It started in June when we announced our new industrial delta machine, the Prusa Pro HT-90. It features a heated chamber (up to 90°C), a lightweight quick-swappable print head, a state-of-the-art custom cooling system, and much more. It’s the most cost-effective way how to print demanding industrial materials. Back then, I said that the Prusa Pro product line gives us the opportunity to develop new solutions (without tight budget constraints), which would then become the groundwork for new features in our desktop 3D printers.

The Original Prusa MK4S was the first to showcase this approach in action. As usual with our products, we like to introduce upgrades during their life cycle, and the MK4 was no different. The “S” upgrade was pretty massive this time around. The brand-new, completely redesigned cooling (based on the knowledge we gained during the development of the HT-90), made the MK4S an absolute beast regarding print quality and even speed, which was further boosted by including a high-flow (CHT) nozzle.

PRUSA in the USA

The MK4S is also our first printer that was manufactured right from the start not only in our HQ in Prague, Czech Republic, but also in Newark, Delaware in our US-based branch.

In 2022, Printed Solid joined our Prusa family and in 2024 things really kicked into gear. Printed Solid grew in size – the team gained dozens of new colleagues and the whole premises completely transformed. There are now spaces for printer production and also filament manufacturing. The same machines that manufacture the state-of-the-art Prusament in the Czech Republic are used with locally sourced materials, so the filament is truly made in the USA.

The same goes for the printers: we made sure to bring all our equipment and know-how to Printed Solid, so all of the USA-built 3D printers are made to the same specifications and standards as the ones here in Prague. All the workbenches, testing tools, everything is the same. The vastly expanded Printed Solid also serves as the official Prusa Research repair center in the US!

This means we already have “Made in USA” filaments, and “Assembled in the USA” 3D printers. And by the way, we have designed the CORE One specifically to ensure the possibility of sourcing parts locally, making it easy to achieve a Prusa printer fully “Made in the USA.”

So, it’s coming full circle: years ago, in my beginnings, people speculated that PRUSA meant PRint USA. Well, it’s happening now. 🙂

New printers announced

When we announced and immediately started shipping the MK4S, it was an incredibly important step for us – and for you. Upgrading the MK4 to the S version was absolutely essential as all the components in the upgrade would be then used in the CORE One (this also makes the Conversion Kit possible). We announced the new printer at FormNext in November – not as a replacement for the MK4S, but rather as a printer that can easily coexist next to our proven flagship machine. November was the last possible moment when we could introduce the machine even though we couldn’t ship it right away – with the upcoming Black Friday sale, we wanted you to have the option to make your own choice between the two.

The Prusa CORE One started shipping at the end of January 2025 and we’ve extensively covered it in the past few weeks. There are also plenty of videos, first impressions, and reviews out there, so I’m not gonna go into too much detail here. All I want to say is that we’re really proud of what we achieved with the CORE One. It’s a new platform for years to come, upgradable and extendable, and even though we manufacture it in the heart of Europe, we managed to give it a very competitive price tag. Plus, the hardware you buy is truly yours and you can run it in any way you see fit – fully offline or with optional online services.

And before I forget: we’ve showcased the new industrial Prusa Pro SLX at FormNext: our next-generation SLA unit, which combines a large-format SLA 3D printer, cleaning station, and curing station into one solid device where the user won’t come into contact with resins or cleaning solutions until the printed object is fully cleaned and cured.

Upgrade & Improve

We also released a ton of various accessories: in January, it was the toolhead packages for the Original Prusa XL enabling you to expand your printer with additional extruders. In June, we followed with the eagerly awaited enclosures for the XL and the MINI.

Along with the release of the MK4S, two cool little accessories appeared in our shop. The first one is the accelerometer made for printer modders, who like to tinker with their machines and, e.g., modify the extruder. Our printers come with pre-set Input Shaper values, however, they are designed for stock printers. When you change the center of gravity of the extruder, it’s a good idea to recalibrate the Input Shaper with the accelerometer. The second accessory is much more interesting.

The GPIO hackerboard is a really awesome gadget for advanced users. Basically, it gives the MK4S and CORE One additional input/output capabilities, so you can control external devices through G-code commands. So, for example, you can program your printer to change your smart home lights to a specific color once it enters a specific state, and more.

This project was shared by one of the users in the Prusa Facebook group.

Another welcome addition is our new Buddy3D brand, which includes various useful 3D printing accessories made by third-party companies under our full supervision. One of the flagship products was the new Buddy3D camera. It comes in two flavors – a standalone unit suitable for the MK4S or XL, and then also the chamber camera for the Prusa CORE One. Buddy3D also includes materials, which brings me to…

A massive selection of new materials

Last year, we went absolutely wild with filaments and resins. Prusament Woodfill is perfect for various items that look great on your desk or in your living room. We also expanded the product line with the extremely chemically-resistant Prusament PP Carbon Fiber, highly durable Prusament PEI 1010, and even introduced the unique PETG Magnetite with paramagnetic properties. It’s pretty awesome and you can read all about it here.

To expand the offer of various colors, we introduced the Buddy3D brand with nearly 50 new filaments. Strict quality control, 0.04mm diameter accuracy, great selection of colors, manufactured in the EU. Check them out!

Last but not least: we brought new resins to the market, especially the Prusament Resin Model which offers an unparalleled level of detail on printed objects.

To make all this possible, our Prusament team had to move to new premises – it’s a gigantic hall not far from our HQ. It has plenty of space for additional filament extrusion lines, a bigger injection molding machine, compounding lines, testing laboratories, and it also features a huge new warehouse. We really want to catch up with all the demand, make it a norm to have everything in stock, and bring you even more materials in the future.

Printables.com is becoming even bigger!

We have an entire team dedicated to running, maintaining, and improving Printables.com to ensure that the site is fast, responsive, and always available. We’re running dozens of community contests, and give you plenty of opportunities to collect reward points which you can exchange for all sorts of awesome stuff – we gave out over 8000 vouchers last year, which means you are really creative and active, contributing to the growth of the printing community which is amazing!

We’re pretty much hitting one million uploaded models now. The overall activity and the presence of many talented designers gave us the opportunity to present the very first Printables Awards and pick outstanding projects.

There were plenty of changes under the hood and also in the user interface – the Make section received a major redesign, the Messenger was reworked from the ground up, and more. Printables.com was also integrated into PrusaSlicer and Prusa App, and we also introduced the P2P referral system. Plus dozens of little changes based on your feedback. The biggest credit goes, obviously, to you, Printables users. Thanks to you, the web and the community around it continue to grow!

PrusaSlicer with many quality-of-life improvements

Four major PrusaSlicer releases brought a ton of useful new features. Our fully open-source slicing software continues to expand, and it can do so much more than just slice.

Some of the most welcome additions were Multiple Beds (when objects don’t fit a single virtual build plate, another one is automatically created), Scarf Seams, integration of Prusa Connect and Printables, reworked multi-material print management, and more.

There were also many, many firmware releases throughout the year with so many changes, that it would take forever to name them. Phase Stepping is definitely among the best improvements, but there were also plenty of smaller changes to improve the interaction with the printer via the touchscreen.

Prusa App

We finally have our own streamlined app without any annoying bloatware, so you can have a perfect overview of your prints from anywhere. We continue to add new features to it all the time, so if you haven’t checked it out yet, it’s the best time to do it!

From the heart of Europe

The release of the Prusa CORE One is an awesome way to start the new year and I can’t wait what 2025 will bring. And what we will bring to you! 🙂 I’m incredibly happy that we can continue to grow and still develop and manufacture our printers in the heart of Europe using as many locally sourced components as possible – and now also in the USA!

All in all, we processed over 300.000 orders, visited 48 events, and grew to a team of over one thousand people!

And so much more happened: I wrote a little behind-the-scenes look at what it takes to manufacture 3D printers in Europe, we published our sustainability report, received an important UL certification for the MK4S, and more. It was a super busy year, but I hope (in the best possible way) that 2025 will be as busy and exciting as 2024.

The CORE One is shipping and the production goes beautifully. Soon, the assembly kits and conversion kits will start shipping, too. And after that? Well, you’ll have to wait and see. I think you’ll be pleasantly surprised!