Any idea what happened here?
I think the most likely explanation is that the silk filament got jammed in a way that the print continued and thought it was doing its thing. I’ve seen that happen before, make sure the spool unwinds freely for a few feet (past the rewind).
Do you have a timelapse to verify?
I do! Let me see if I can upload it…
It sounds like you might be correct, but why wouldn’t the system catch it? Wouldn’t it be able to detect the lack of material? After all, it’s often warned me of spaghetti, so clearly it can see when something is present that shouldn’t be there.
The sensor usually catches it but there are cases where it remains tripped so it is of no use, like a tangled / jammed filament roll. The AI just doesn’t have this feature afaik.
So, now unspool a few meters to see if it turns freely and there are no visible tangles in the area. Is the PTFE path to the printer short and smooth? etc…
I’m in the middle of another print, so I can’t test the full PTFE path, but I did notice while unwinding the spool that the AMS slot the silk filament is in feels like it has more resistance than the others… I wonder if the rollers/bearings are gummed up?
After this print, I’ll see about looking at it a little closer.
So… I can’t say for sure yet until I try another print in that slot, but I took the roller out, and the bearing on one side was definitely binding up a bit. I also noticed that it’s the only one in the set that was directly against the rubber. I trimmed back a tiny amount with a crafting blade, and oiled the bearing. I should still probably replace it, but it is turning at least somewhat easier now.
If I encounter the issue again, I’ll update; otherwise assume that was the problem.
