Prusa says Bondtech INDX conversion kit will ship by late August

Prusa’s July 3 update turned Bondtech’s INDX from a teaser into a shipping timeline. The company said the Founder’s Edition is now out in the wild, the first standard conversion kits are scheduled to leave its factory by the end of July, and the first batch should ship by the end of August after delays tied to the founder units.

That matters because INDX has spent most of its life as a promise: Prusa and Bondtech first unveiled the 8-material multi-tool upgrade for the Prusa CORE One at Formnext 2025 in Frankfurt on November 19, 2025, and Prusa described it at launch as a new architecture rather than a simple filament-switching add-on. The current product framing is even broader. Prusa now describes INDX as an 8-material upgrade for the CORE One+, and the company’s own CORE One+ page positions the printer as a fully enclosed CoreXY machine with active temperature control and EU manufacturing. Earlier CORE One launch material also pitched the platform as 30% smaller than the MK4S with 30% larger build volume.

Bondtech’s side of the story fills in the technical bet. The company says INDX uses induction heating, infrared temperature sensing, and passive tools with no wiring, heaters, thermistors, or electronics in the tool itself. Bondtech lists nozzle heat-up at roughly 4 to 12 seconds and a complete tool change, including heatup, at about 14 seconds. That is the kind of number multicolor users can actually benchmark, especially when the alternative is living with long purge sequences and heavy waste towers.

Prusa says the engineering work is now centered on print profiles, with improvements aimed at PLA quality, support for more advanced materials, and additional nozzle diameters. The update also pointed to practical hardware refinements, including a new docking panel, a cleaner view of parked tools, and a nozzle cleaner plus waste bin designed to cut down on plastic waste. Those details are the difference between an interesting demo and a system people can fold into day-to-day jobs.

The sharper questions are still the familiar ones: how fast does INDX really feel on a live print, how much filament still gets burned in cleanup, how consistent is it over long runs, how broad is the material support, and how far does the upgrade path reach beyond the CORE One family? Bondtech’s Development Kit orders opened on July 3 at 9 AM CEST with limited stock, giving DIY builders another entry point, but at a higher price than the Founder’s Edition. INDX has crossed the line from teaser rendering to real hardware in real hands, and the next test is whether it earns a place in the multicolor race on the build plate, not just in the launch slide.