I just got here to use big thunder and there is a lot of stringy kinda fluffy white residue on the bed? Is this just acrylic someone didn’t clean up?
That’s messed up 
Looks like web worms took it over. 
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likely acrylic rastering but silver lining is it looks like the fans are still sucking
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I can write a computer vision program that will notify people if something is out of the norm…or the security system should have a log.