hi 3dprint_fox, yes, you are right. With PLA you will have to replace it . Now I am using PET and lasts longer but it deforms a bit, specially if you print high temp plastics as PET or ABS. Perhaps in ABS will be more durable ;). Let me know if you try it. Thanx

Hi arquimaña! Nice upgrade for my Ultimaker Original Dual Extruder. I tested your design with PLA Material and prints really got better because of the evenly distributed air flow to all directions around the hotend. But there is still the old heat problem caused of the short distance to the heater block. PLA starts melting after a period of time. I thinking about printing this one with ABS or other heat resistant material...