Serious failure after only a handful of prints.
I bought a pre-assembled core one, and have printed successfully on it about 5 times (only with PLA).
Today, it jammed while printing while I was out of the room.
I thought it was a nozzle, so I tried purging, un-loading, loading and cleaning, but nothing helped.
After extracting the nozzle, while I found filament in it, it wasn't the issue. The filament had broken off just above the top of the nozzle entry.
Looking into the gear assembly, I see (attached photo).
It looks like a bomb has gone off it there!
What on earth could have caused this? Is it repairable?
I feel that since I paid for the printer to be pre-assembled, and have printed only PLA with it, and have not touched the hot end/gear assembly until now, it should be something I can talk to Prusa support for.
RE: Serious failure after only a handful of prints.
Had the filament been sitting in the printer for some time unused, chances are that the filament has become brittle and breaks off in the extruder. Does it break if you bend it?
/Anders