Collaborative Engineering for Multicolor Printing

Prusa Research has officially expanded its ecosystem by integrating the INDX toolchanger into the CORE One+ platform. Developed alongside Bondtech, the INDX—which stands for Induction Dynamic Extruder—is designed to handle up to eight colors and various material types. This partnership builds on a technical relationship between the two companies that dates back to the 2017 MK3 bedslinger, focusing on creating a system capable of producing professional-grade, multicolor prints at high speeds.

The core of the system relies on slim toolheads that contain no moving parts, delegating the complex extrusion work to a centralized 'smart head.' For those looking to integrate this technology into their workflow, the system is available as a complete unit or by purchasing it as a kit from Prusa. The collaboration ensures that the hardware remains consistent with the precision expected of the CORE One+ Gen 2 ecosystem.

Ditching the Prime Tower

One of the most significant technical advancements introduced with the INDX is the near-total elimination of the prime tower. Traditional multicolor toolchangers often require a prime tower to prepare nozzles between color changes, resulting in substantial material waste. Prusa has circumvented this by implementing a specialized wiper mechanism that ejects only a tiny, 13-milligram blob of filament during transitions.

Comparative testing has highlighted the efficiency of this approach, with the INDX demonstrating both faster print speeds and lower material consumption than other available multicolor printers. By optimizing the motion system and the filament transition process, the INDX represents a distinct departure from the high-waste workflows that have historically characterized multi-material 3D printing.

Flexible Hardware Configuration and Pricing

Prusa offers several entry points for users interested in the INDX system. The CORE One+ INDX starts at $1,699 (4 Toolheads) for those choosing a DIY kit, while a fully assembled 3D printer with eight toolheads is priced at $2,119 (8 Toolheads). These units include advanced features such as the Buddy Cam and enhanced filtration systems designed to maintain performance over long print sessions.

For existing owners of the standard platform, conversion kits are available to upgrade their current machines. The installation process is estimated to take between 5 to 6 hours, though users should be prepared for a thorough hardware reconfiguration. The modular nature of the system allows users to start with a four-tool setup and expand their capabilities as their needs grow, with individual tools currently listed at $45 on the Bondtech website.

Design and Build Specifications

The CORE One+ INDX utilizes a steel exoskeleton, balancing structural rigidity with a minimal aesthetic. The printer features a 300 x 300 x 330 mm build volume and incorporates a 3.5-inch color touch screen for user input. While the tool rack is located at the front of the chamber, it occupies minimal space, resulting in only minor reductions to the available build area.

Maintenance and usability are supported by features like the active cooling system and automatic top vent, which allow the machine to remain enclosed during operation. Whether users are exploring the best 3D printers on the market or looking to specialize in multi-material production, the INDX offers a robust hardware set. The machine is primarily manufactured in Prague, with some components for US-assembled units printed locally.

Sources

• Tom's HardwarePrusa CORE One+ INDX review: Time for a 'Tool' change