i've just assembled MMU2. Now i have a MK3 with extruder with inclined fan. On hotend i DO NOT have any green point.
1) It's right if i say that i have the R7/B3 extruder ?
2) It's right that i must change PTFE into extruder ?
In case yes to 2, in the guide i see extruder with vertical fan (B6 ? ), i can see that guide anyway ?