How does the INDX toolchanger work?
INDX stands for Induction Dynamic Extruder. It is a joint project: Prusa Research supplies the platform, here the CORE One+ Gen 2, and Bondtech supplies the toolhead system. The passive nozzles hold no moving parts, only a nozzle and a filament path, and the single smart head heats them by induction. It picks each nozzle up from a rack at the front of the chamber, using magnets.
Compared with the standard CORE One+, the rack costs 15 mm of build depth and 2 mm of width. An automatic tool offset calibration sensor sits in a front corner and needs only to be kept clean. The reviewer also notes the printer can print ASA and ABS with the door closed, helped by active chamber temperature control that reaches 55 C using bed heat.
How does it avoid the prime tower?
Toolchangers already waste less than single-nozzle multicolor machines, but they still need to prime nozzles. The INDX replaces the prime tower with a wiper that ejects a blob of about 13 mg, smaller than a grain of rice, into a waste container on the outside of the machine.
In the reviewer's test of one model with similar settings on both machines, the INDX was nearly nine hours faster than the Bambu Lab H2C, produced 83.58 g less waste excluding supports, and used three more colors.
What does it cost and how is it sold?
A DIY kit with four toolheads starts at 1,699 dollars, and an assembled eight-toolhead machine with Buddy Cam and advanced filtration costs 2,119 dollars. Owners of a CORE One can convert it for 749 dollars (four toolheads) or 999 dollars (eight). Prusa quotes 5 to 6 hours for the conversion, while the reviewer needed most of a weekend for the early Founder's Edition. Single tools are listed at 45 dollars on Bondtech's site, and the system is also sold there as a kit for other open-source printers.