The printer uses a creative four-channel nozzle and switching extruder Creality calls QuarTeks to cut print waste on multi-filament prints. The printer circumvents the filament cut'n'purge other single-nozzle printers use by having each of the filaments primed inside the nozzle in its own discrete channel. Creality claims there's zero purge during printing. See for yourself over on Indiegogo, where a limited early-bird discount has the i8 available from $289.