When everything is working, the tool-changing carriage on this enclosed CoreXY machine grabs a nozzle from one of the numbered docks, heats up over the waste bucket for an initial wipe, purges into a V-shaped silicone block to build backpressure, gets brushed across rear bristles into the bucket, prints, then parks on a silicone sealing pad with an auxiliary cooling fan. That six-step cycle runs on every swap, with the stated goal of cutting purge waste and streamlining multi-material changes.
The hardware around the cycle looks tidy to me. Multi-material PTFE feed tubes route into the machine, and the internal purge bucket is a collection tray filled with small purge pellets. A thumb screw rotates 90 degrees to let the tray slide out, and it goes back in with no recalibration needed. The black enclosure has a transparent front panel over the build plate and linear motion components, a raised top, and an orange spool mounted on the left exterior.
The numbers are what stand out. Over 13 hours 3 minutes and 1,983 tool changes, the INDX setup produced 19.2 grams of waste. For comparison, a competing nozzle changer produced 124.5 grams in 24:53 across 1,974 changes, and another tool changer produced 132.1 grams in 13:32 across 1,975 changes. In my view that gap is a very strong result for a purge-based design.
On-screen, the hotend heating status is shown up to 215 °C, with the bed at 60 °C and the enclosure at 20 °C. Two things remain open for me: questions still hang over how the calibration behaves, and it is unclear whether a purge and cleaning bucket like this will reach regular Core One machines.
Project by Prusa 3D. Watch it on their YouTube channel: