INDX 4-Tool Conversion Kit for CORE One/+

Four independent toolheads for your CORE One or CORE One+. Induction-heated nozzles, tool swaps in around 12 seconds and about 13 milligrams of purge per change. Start with four and add passive tools whenever you are ready.

One Smart Head, Passive Tools

The INDX turns a CORE One or CORE One+ into a true toolchanger. A single Smart Head carries the only electronics in the system, a contactless induction coil that heats each nozzle from cold to printing temperature in seconds. The tools themselves are passive: no heater cartridge, no thermistor, no wiring, just a nozzle, a filament path and a Maxwell coupling. Each material keeps its own dedicated path, so there is no shared melt zone, no oozing from idle nozzles and no cross-contamination between colours or materials.

The 4-Tool Kit

The 4-Tool kit is the way in. You get the full INDX Smart Head, docking station, purge collector and top cover, plus four passive tools and four spoolholders. The Smart Head and firmware already support eight tools, so adding a fifth, sixth or eighth later means adding a passive tool and its parking dock, not another print head.

Key Specifications

Core Features

• Four passive tools with 0.4 mm high-flow nozzles, expandable to eight later
• Induction-heated nozzles reach printing temperature in seconds and cool quickly when parked
• Around 13 mg of purge per swap, roughly 5× less waste than the most efficient purge systems and 30× less than filament rewinding systems
• Dedicated filament path per tool, so rigid and flexible materials, soluble supports and different nozzle sizes can share one print
• Dynamic Dual Drive extruder adjusts grip automatically for soft, rigid and fibre-filled filaments
• Advanced silicone nozzle wiper cleans each nozzle before it rejoins the print
• Automatic tool offset calibration in about 15 seconds per tool, on a dual-target sensor mounted outside the print area
• LoadCell first-layer sensing carried over from the CORE One, no manual Z tuning
• Works with any 1.75 mm filament, and all 4 spoolholders fit the Prusa USS Drybox
• Your existing print sheets, filament profiles, PrusaSlicer setup and Prusa Connect all carry over unchanged

Why It Wastes So Little

Calibration in 15 Seconds per Tool

The INDX includes a new toolhead offset calibration system mounted permanently outside the print area, so nothing needs to be placed on the bed. One target reads the nozzle position while a second reads background noise and cancels it out, which gives highly precise offsets in any environment. Once the kit is installed the printer runs a quick calibration and can pick up and park every tool with repeatable precision.

Enclosed Chamber, Doors Closed

The kit replaces the top cover with a new one that includes automatic ventilation, so the CORE One keeps its enclosed chamber and its ventilation system. PLA and PETG print with the doors closed, and engineering materials like ASA, PC and PA get the benefit of active chamber heating to 55°C.

Material Focus

The included nitrocarburised high-flow nozzles suit PLA, PETG, ASA, ABS, PC, PA, TPU, PVA, BVOH and other non-abrasive materials up to 300°C. They are surface-hardened rather than fully hardened, so they are not recommended for regular printing with highly abrasive filaments such as glow-in-the-dark or heavily filled composites. Prusa rates them for roughly 10 kg of PETG-CF, 5 kg of PC-CF or 0.5 kg of Prusament Ultraglow before print quality is affected.

Compatibility

What's in the Box

• INDX Smart Head
• 4 × passive INDX tools with 0.4 mm high-flow nozzles
• Plastic parts and top cover with automatic ventilation
• 4 × spoolholders
• Advanced nozzle wiper and purge collector
• Toolhead offset calibration target
• GT 1.5 belts and matching pulleys
• Thermal expansion joints
• PTFE tubing, fasteners and accessories
• Illustrated assembly guide, with the full online manual on Prusa Help

Installation is a user upgrade following Prusa's illustrated guide. Specifications may vary with firmware updates. Printer not included.