Goodmorning,
I have an Ultimaker 2 and I need your help please!
Yesterday I changed a coil from red PLA to yellow. Then I lunched a print but some material started exiting from the external part of the extruder. I attached a picture that depicts the issue. I would kindly like to know in which way I can solve the problem.
https://www.dropbox.com/sh/k7jx2zf3q25wlua/AAAj5Z1KHRIB43Qo5wMNSnWha?dl=0
Thank you sooo much!
Matteo