The copper material fittings are used in the hotend, so that the connector can take higher temperature.
The Cyclops is a 2 In 1 Out – Multi-extrusion System.
Cyclops introduces a new way of printing multiple materials not yet seen before in commercially available hotends. By taking 2 input materials and printing them alternately from a single nozzle. Cyclops is able to eliminate ooze problems that are inherent in most conventional dual extrusion systems.
Tips : Withdrawing should be controlled at 1.5. To keep the withdrawing speed consistent with the usual speed is ok. Please note that do not let one side feeding for too long when feeding as its first time, both sides should be evenly feeding. Make the software at double extrusion, and the minimum temperature limit changed to 0, then they can be used normally.