I assume this fell off the print head, but I do not want to stop the print. Anyone know where it came from?
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To me that looks like it may be a lens of some sort? Can you see all the cameras?
I need to find a baseline picture, but looks like it may have come off the part on the right side of the head, that bit with the BBL logo.
Because it’s squarish, I was thinking flame sensor cap in the one of the top four corners.
Still not identified from looking at spare parts page and these photos. I’ll have to wait another 8 hours before I can take a closer look.
This appears to be it. After the print is done, I’ll take a look.
A bit of a stress test print as well. Close to 10hr ABS print. 60deg chamber, 90deg bed, 270deg nozzle.
The very same thing happened to me. I just thought it was a bit of scrap plastic from somewhere. I have had a look around and i can’t see anything amiss!
Keep us posted please.
It’s a magnet cover for the nozzle blocker (aka ooze shield aka flow blocker).
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Yep. It’s just stuck on one of the magnets for the nozzle blocker. Mine fell off. Took the other one off and it works just fine.
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Confirmed I see two exposed magnets on the bottom of the toolhead now. Seems they didn’t use great adhesive.
I’m not sure if they are even supposed to stay there. Might be to protect them from hitting in shipping? The protective pads are not exactly a low friction material anyways.
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My pic was covering the opposite nozzle, so I would guess there may have been as many as 3 of those covers. Personally, I don’t think its the end of the world, but I’m pretty sure they had it on there for a reason. Just not sure what that reason would be.
That’s where I’m at. Would love to know what they intended.
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Maybe to just dampen/weaken the magnetic pull? Regardless, I’ll just keep running as is and see if there are issues. If there are, I will pull that bracket off and install some sort of cover for the magnets.
I contacted support and got an answer:
I understand your concern, and I’m happy to assist.
This cover is attached to the Nozzle Blocker Magnet. Its main purpose is to reduce friction between the magnets, helping to maintain smooth movement.
Do You Need to Put It Back?
You can certainly put it back by reattaching it to its original position. However, if you prefer not to, or if it is difficult to reattach, there is no significant impact on your printing. The printer should function normally without it.Here’s a reference image for you to see how it should be positioned, in case you choose to reattach it.
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I wonder if the magnets rub over time and create 2 rough surfaces that can bind. And this cover prevents it and was possibly a band-aid afterthought.
Nevermind, previous post says the same.
Maybe printing a single layer of nylon and gluing it onto the lower magnet of the nozzle blocker arm. Or to the metal, if there is no magnet on the arm, is the way to go. Anybody measured the thickness of the sticker?
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I can measure later, but it’s very thin. I’d guesstimate 0.3-0.5mm
I also asked support how to attach it (ie adhesive, and if needed, what kind of adhesive). Reply pending.
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