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The INDX is an extremely fast, highly efficient toolchanger system with up to eight independent toolheads that seamlessly integrates with your CORE One+ 3D printer. Each material gets its own dedicated path, so you can combine rigid and flexible parts, use easy-to-remove or dissolvable supports, switch nozzle sizes in the same print, and print multi-color models without throwing half of the spool to waste.
Multi-material goes beyond color. It lets you build functional parts that combine properties no single filament can deliver.
No wipe tower, no piles of plastic around the printer
Water-soluble or break-away organic supports
Add a rubber-like grip to functional prints
Have all your favorite materials always loaded
If you already have a CORE One+ 3D printer, the INDX is a conversion kit, not a new machine. Install the Smart Head, mount the tool docks, load your filaments. Your existing print sheets, filament collection, PrusaSlicer profiles, and Prusa Connect setup carry over unchanged. Same printer, dramatically more capability.
Keep all the features of your CORE One+, like high-speed printing and a smart ventilation system, and give it a massive boost with this extremely fast tool-changing system. The INDX toolchanger achieves unbeatable results thanks to rapid induction heating of its nozzles. It doesn't waste time on wipe towers. Only with the INDX, you'll get beautiful, multi-material 3D prints faster than ever before - and with all the benefits only a toolchanger can provide.
We measure toolchange time from the last extrusion on one material to the first extrusion on the next, on the model itself. This avoids inflated and misleading numbers based on partial steps. The ~12 seconds per change for PLA is the time between when one nozzle leaves the printed part until the second nozzle starts printing.
Nearly all multi-material systems place a block in the corner of your print sheet where the nozzle purges excess filament. The INDX doesn't do that. You can use up to 248×204×270 mm for your prints!
Many enclosed printers require you to keep the chamber door open when printing PLA or PETG, eliminating the benefits of the closed chamber. The INDX retains the unique ventilation system, so you can keep the doors closed.
The INDX is not limited by storage options or proprietary RFID chips. You are completely free to use any spool you like, including all the materials you already know and love.
![[imageAlt]](https://assets.prusa3d.com/cdn-cgi/image/width=5578,height=3719,quality=85,format=auto,fit=scale-down/2a7cb4b7-d677-4d2d-bfb8-ba932d9878cc.jpg)
This is how multi-material should be done.
Nearly every multi-material solution on the market produces excessive plastic waste during filament changes. A cheaper machine might save you money on day one, but you'll pay the difference in wasted filament by month six.
When INDX swaps materials, it purges around 13 milligrams of plastic (0.013g) to stabilize the pressure inside the nozzle. That means no huge purge structures, no large piles of filament “poop,” and absolute minimum wasted material across long and complex prints. The INDX produces 5× less waste than the most efficient systems and 30× less than standard filament rewinding systems.
![[imageAlt]](https://assets.prusa3d.com/cdn-cgi/image/width=1200,height=800,quality=85,format=auto,fit=scale-down/80e6b7d3-1f95-4d1a-9c20-f89bf359f894.jpg)
Zero attention required even during long print jobs
The advanced nozzle wiper for induction nozzles helps remove any residue left on the nozzle before printing resumes, improving cleanliness during swaps and reducing the risk of stray blobs affecting print quality. The nozzle wiper is located on a purge collector, where the nozzle deposits the micro-blob of plastic, smaller than a grain of rice.
Less than a grain of rice (13 milligrams)
Choose from over a million free 3D models at Printables - even single-color objects can be easily painted.
Multicolour Majora's Mask
![[imageAlt]](https://assets.prusa3d.com/cdn-cgi/image/width=1920,height=1440,quality=85,format=auto/f7b1eb1d-d428-4750-ac07-bd4f06f1d537.webp)
Canadair CL-415 | Bombardier 415 Super Scooper
The Tuscan Villa
Wrigley Field - Ballpark in Chicago
Kaminarimon "Thunder Gate" 雷門 - Asakusa, Tokyo, Japan
Ripper Mask - Borderlands 4
The INDX Smart Head contains an induction coil - just like an induction cooktop. When it picks up a toolhead, it generates a high-frequency magnetic field that heats the nozzle from cold to printing temperature in seconds. When the tool is parked, it cools rapidly. No oozing, no stringing from idle nozzles.
Using passive tools without any electronics is a massive advantage: they are less complex and more reliable. Adding a fifth, sixth, or eighth tool means adding a nozzle and a parking dock - not another full print head. The standard nozzle is a hardened 0.4mm CHT (high flow) - the ultimate combo.
Soft materials need a gentler grip than rigid, fiber-filled ones. The INDX features a unique mechanism that adjusts the drive gear tension automatically, so you can move from TPU to rigid engineering filaments without stopping to retune the extruder.
Load eight filaments, install different nozzle sizes from 0.25 to 0.8. When you start a print, everything's already ready and loaded. Just pick the right tool. If you like to use different filaments and nozzles, and hate constantly swapping everything around, the INDX is the solution for you.
Both kits include the same Smart Head and docking hardware. The only difference is the number of passive tools. You can always add more later.
Four nozzles - ready to be upgraded anytime
Full 8-material capability from day one
Once you install the INDX, the printer will perform a quick calibration, so it can pick up and park all eight tools with absolute precision.
The INDX conversion kit doesn't have the same bed-mounted calibration pin as the Prusa XL. Instead, there is a new toolhead offset calibration system, permanently mounted outside the print area. - Dual-Target Precision: Uses a secondary target to actively cancel background noise, ensuring highly precise sensor readings in any environment. - 20x Faster: Calibration takes just 15 seconds per toolhead - down from hundreds of seconds on the stock XL. - Improved Repeatability: Streamlines setup while delivering highly consistent results.
EasyPrint and PrusaSlicer are two free tools you can use to prepare any 3D model for printing. Both feature easy-to-use tools for virtual painting, so you can turn any model you download into a beautiful, color-rich 3D print. EasyPrint works in your browser or on your phone/tablet and PrusaSlicer is a fully featured software package for Windows, Mac and Linux.
Even with multiple nozzles, the INDX achieves a beautiful first layer without lengthy calibration thanks to the LoadCell sensor. Simply hit Print and let the machine do the rest!
INDX spoolholders are fully compatible with the Prusa USS Drybox and you can attach all eight of them. This way, you can keep your advanced, hygroscopic materials neatly stored and dry - and have them always ready for a new print job.
Why single-nozzle multi-material has a ceiling
Every single-nozzle multi-material system has the same fundamental problem: one melt zone for multiple materials. Every color change means unloading the old filament, loading the new one, and purging everything in between.
On complex prints, the waste usually weighs more than the finished object. That's a physical limitation baked into the architecture, not a design choice. You can optimize it, but you can't eliminate it. Even with cheap filaments, you are effectively throwing away your money.
You can't combine materials that create an incompatible environment in the nozzle. Try running TPU through the same hotend as PLA and watch the jams pile up. Different nozzle sizes in one print? Impossible with only one nozzle.
| 4-Tool Kit | 8-Tool Kit | |
|---|---|---|
| Smart Head | 1× (induction coil + DX extruder + contactless temp sensor) | 1× (induction coil + DX extruder + contactless temp sensor) |
| Passive Tools | 4× with hardened CHT nozzles (0.4 mm default) | 8× with hardened CHT nozzles (0.4 mm default) |
| Docking Hardware | INDX Mounting Plate (with 4 positions for future upgrades) | INDX Mounting Plate |
| PTFE Tubing & Mounting | Included | Included |
| Top cover with automatic ventilation | Included | Included |
| Spoolholders | 4 included | 8 included |
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