The Prusa CORE One INDX: an 8-Material Toolchanger That Delivers Purge-Free Multicolor

Among the next-generation machines chasing multicolor and multi-material through toolchangers, Prusa Research took a notably different road. Where Bambu and Creality launch new printer bodies, Prusa chose to evolve a printer you already own. The INDX, co-developed with extruder maker Bondtech, is an upgrade kit that turns an existing CORE One into an eight-material toolchanger. Prices below reflect confirmed values as of late June 2026, with dollar figures converted at about 161.6 yen to the dollar.

Prusa’s strategy — an upgrade, not a new machine

The defining feature of the INDX is that it is not a standalone printer but a kit you bolt onto an existing CORE One. That distinction matters for both the purchase decision and the philosophy of making. Buying a new machine usually means trading in or shelving the one you already use; an upgrade kit keeps your investment alive. With eight tools, each material gets its own dedicated path, so you can combine rigid and flexible parts, use easy-to-remove or dissolvable supports, mix nozzle sizes within one print, and produce multi-color models without throwing away half a spool to purge.

The CORE One foundation — the strength of an enclosed CoreXY

The kit only makes sense because of the machine underneath it. The CORE One is an enclosed CoreXY printer that raises body rigidity and prints PLA and PETG sealed inside, with travel speeds up to 600 mm/s. Its enclosure actively controls internal temperature, heating the chamber up to 55 degrees C, and 360-degree cooling around the head finishes steep overhangs cleanly without support. Pricing is 1,099 dollars (about 178,000 yen) for the CORE One, and 1,599 dollars (about 258,000 yen) for the assembled CORE One+. Because an enclosed CoreXY provides that baseline capability, layering a multi-material toolchanger on top of it actually means something.

How INDX works — the Smart Head and eight dedicated tools

Converting a CORE One is straightforward in concept: install the Smart Head, mount the tool docks, and load your filaments. The system supports up to eight independent toolheads, each parked in its own dock and picked up only when its material is needed. Crucially, your existing print sheets, filament collection, PrusaSlicer profiles, and Prusa Connect setup all carry over unchanged, so the upgrade extends the machine rather than replacing the ecosystem around it.

Why purge-free multicolor works

The reason the INDX avoids the purge mountain is mechanical, not clever software. On a single-nozzle machine, every color change forces the printer to push the old material out through the same nozzle before the new color can flow cleanly, and that flushed plastic piles up in a purge tower. With eight dedicated tools, the previous material never passes through the next nozzle, so there is nothing to purge. The waste is removed at the level of the mechanism itself, which is exactly the convergence point that Bambu’s Vortek and Creality’s KliTek are also chasing from different directions.

Price and availability — the Founders Edition and the supply wave

Availability is where the picture gets a little involved, so it is worth laying out carefully. The INDX upgrade kit first opened for orders as a Founders Edition on Bondtech’s site. The price Prusa announced for the INDX upgrade kit is about 749 dollars (roughly 121,000 yen). Earlier estimates had put it near 499 dollars for a four-head configuration and 699 dollars for eight heads, but the actually announced Founders Edition came in higher than those early figures. The kit is sold in limited quantities, so orders open and close as stock cycles, and even buyers who want one immediately are subject to availability.

Importantly, the Prusa Edition of the upgrade kit began shipping in June 2026, so this is a product that is actually arriving, not merely announced. If you do not already own a CORE One, budget for the body plus the kit — roughly 1,099 dollars for the machine and 749 dollars for the kit combined. Viewed in total, the INDX feels most economical for people who already own a CORE One, since they pay only for the upgrade rather than a whole new machine.

INDX among the three toolchangers

The three big toolchanger approaches of late 2026 differ in mechanism and in posture. Bambu’s Vortek swaps hotends from a rack on a flagship machine; Creality’s KliTek swaps nozzle assemblies on an upcoming K3; Prusa’s INDX gives each material a full, independent toolhead and — uniquely — arrives as an upgrade to a machine already in the field. That last point is the INDX’s strongest differentiator: it rewards existing CORE One owners and preserves their slicer profiles and print sheets, rather than asking them to start over. The cost is that you must already be in, or buy into, the CORE One platform first.

Conclusion

The Prusa CORE One INDX turns purge-free, eight-material printing into an upgrade rather than a replacement. Built on an enclosed CoreXY that already prints engineering materials well, the Smart Head and eight dedicated tools remove color-change waste at the mechanism level, while the roughly 749-dollar kit and June 2026 shipping make it a real, buyable option. For anyone who already owns a CORE One, it is among the most cost-effective routes into serious multi-material printing in 2026.

References

Prusa Research: INDX conversion kit product page and orders-now-open announcement (official blog); Bondtech INDX by Bondtech; Prusa CORE One and CORE One+ product pages.

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