What is this part?

I found this in the tank after it failed to print. It s a black flexible part. Do someone know what is this? I don t think so far that it comes form the tank itself…

Hi @poupa,

To be honest, I’m not quite sure where this could be from! It doesn’t seem to match any component from the tank or printer as far as I’m aware. I would recommend removing it, then following the steps in Inspecting and cleaning resin tanks (Form 3/Form 3B) to ensure the tank is free from debris. If you continue to experience print failures, please feel free to get in touch with our Support Team.

As well, just to double check, are you printing with Black Resin? If so, it’s possible that this is cured resin that formed during the print failure.