Prusa INDX 4-Tool Conversion Kit for CORE One/+

Turn your Prusa CORE One into a true multi material machine. The INDX 4-Tool Conversion Kit adds the Bondtech INDX passive toolchanger to a printer you already own. Roughly 12 second tool changes, induction heated nozzles, and about 13 milligrams of purge per swap instead of a wipe tower.

This is a conversion kit, not a new machine. Install the Smart Head, mount the tool docks, load your filaments, and the printer does a quick calibration. Same printer, considerably more capability.

Want every position populated on day one? See the INDX 8-Tool Kit.

Why INDX?

• ~12 second true toolchange. Measured from the last extrusion on one material to the first extrusion on the next, on the model itself. No wipe towers, no purge blocks.
• 13 mg of waste per swap (0.013 g). Less than a grain of rice. Prusa rates it at 5x less waste than the most efficient systems and 30x less than standard filament rewinding systems.
• Induction heated nozzles. The Smart Head carries the coil, so a nozzle goes from cold to printing temperature in seconds and cools just as fast when parked. No oozing or stringing from idle nozzles.
• Hardened high flow nozzles on every tool. Each passive tool ships with a hardened 0.4 mm CHT nozzle as standard. Hardened by default means carbon fibre, glass filled and other abrasive filaments print without swapping hardware first, and without chewing out a brass nozzle the way a shared single nozzle system does.
• Passive toolheads. No electronics on the individual tools, so adding a fifth, sixth or eighth tool means adding a nozzle and a dock, not another full print head.
• Dynamic Dual Drive (DX) extruder. Drive gear tension adjusts itself, so you can move from TPU to rigid fibre filled filaments without retuning.
• Advanced nozzle wiper. Residue is cleared before printing resumes, and the micro blob is deposited into a purge collector rather than onto your bed.
• Toolhead offset calibration in ~15 seconds per tool. A dual target sensor mounted outside the print area, about 20x faster than the stock XL routine, plus LoadCell first layer calibration.
• Doors closed at all times. The CORE One ventilation system is retained, so PLA and PETG print with the chamber shut.
• Open filament system. Any brand, any spool size, any 1.75 mm filament up to 300 C. No proprietary RFID chips.
• Prusa USS Drybox compatible. INDX spoolholders mount to the Drybox, all eight of them if you want.

What's in the box (4-Tool Kit)

• 1 x Smart Head (induction coil, DX extruder, contactless temperature sensor)
• 4 x passive tools with hardened CHT nozzles (0.4 mm as standard)
• INDX Mounting Plate, with 4 further positions ready for future upgrades
• PTFE tubing and all mounting parts
• Top cover with automatic ventilation
• 4 x spoolholders

Material support

PLA, PETG, ASA, ABS, PC, PCCF, PA, TPU, PVA, BVOH, and any other 1.75 mm filament up to 300 C.

Because every material has its own dedicated nozzle and path, there is no shared melt zone: no cross contamination, no colour bleed, TPU alongside PETG in the same print, and different nozzle sizes in the same job.

Specifications

System type	Passive toolchanger with induction heated nozzles
Max tools	8 on CORE One/+
Max nozzle temperature	300 C
Filament diameter	1.75 mm
Nozzle supplied	Hardened 0.4 mm CHT (high flow), one per tool, fitted as standard
Compatible nozzle sizes	0.25, 0.4, 0.5, 0.6, 0.8, 1.0 mm
Nozzle sizes loadable at once	Prusa quote 0.25 to 0.8 mm across the installed tools
Abrasive filament ready	Yes, hardened as standard, no nozzle upgrade needed
Nozzle type	Hardened, high flow (CHT)
Heating system	Contactless induction coil (on Smart Head)
Temperature sensing	Wireless and contactless
Extrusion system	Dynamic Dual Drive (DX) auto adjusting grip
Tool coupling	Mechanical Maxwell coupling
Build volume impact	2 mm reduction in X axis, 15 mm reduction in Y axis
Build volume with INDX installed	248 x 205 x 270 mm (X x Y x Z)
Printer size with INDX installed	620 mm wide, 690 mm high, 470 mm deep (doors closed, spools attached)
Compatible printer	Prusa CORE One/+

Compatibility

Compatible with: Prusa CORE One and CORE One+.

If you are on a base CORE One, the CORE One+ (Gen 2) upgrade is required alongside the INDX. Prusa ships that upgrade bundled with some INDX orders, and it can also be bought separately and fitted at the same time. Talk to us before ordering and we will confirm what your machine needs.

Not compatible with: CORE One L, and no MK, MINI, XL, HT90 or SL series printer.

Your existing CORE One print sheets, filament collection, PrusaSlicer profiles and Prusa Connect setup all carry over unchanged.

4-Tool or 8-Tool?

Both kits contain the same Smart Head and the same docking hardware. The only difference is how many passive tools and spoolholders come in the box. The 4-Tool Kit is the starter: four nozzles now, with the mounting plate already prepared for four more whenever you want them.

Want the full set on day one? View the 8-Tool Kit

Availability and shipping

• Free shipping Australia wide. No freight charge on INDX kits, to any address in Australia.
• Dispatch date is TBA. Prusa has the Founder's Edition shipping now and the Prusa Edition shipping from mid August 2026. We have not been given a firm Australian dispatch window yet. It will be soon, and we will contact you with the date as soon as Prusa confirms it.
• Ordering now holds your place in the allocation queue. You will be asked to acknowledge the TBA dispatch date at checkout.
• Sold by SIDDAMENT as an authorised Australian Prusa reseller, with local support and warranty.

Prusa's own Australian RRP for this kit is A$1,199.00, duties and taxes included, and it is currently out of stock on prusa3d.com.