You got lucky!!
This is what happens when your part detaches from the print bed, but keeps moving around with the print head! I think I was printing the motor mounts this time. PLA oozed up around the hot end and into the fan shroud. It also made it up past the effector plate on my printer, I had to use a torch and a knife to melt the plastic rivet it created to free it.
Reply To: Updated Center Parts