Using a microphone to detect failures
Just wondering if anyone's tried to do this before? I've noticed that just before some of my print failures there are audible clicks for a few layers at roughly the same layer position, as the nozzle makes contact with the model while retracted.
Would be great if the printer had ears and some smarts to trigger a notification or stop the print.
Any thoughts?
RE: Using a microphone to detect failures
I had the same idea, now I have to read and learn a lot about neural networks and how to train them (audio pattern instead of object recognizing on pictures) 🤓
RE:
Getting an ML model to run on the rambo board might be asking a bit much 🙂
Maybe theres a low-fi solution like adding a switch to the extruder.
I think detecting a switch activation would take the complexity out of the software, but would need a few mechanical changes - e.g. redesign the extruder and allow it to travel to activate the switch, but be rigid enough to do decent prints.
RE: Using a microphone to detect failures
A few years ago I seem to remember some kind of a diagnostic method which could analyze the operation of a (Prusa) printer just by the sounds it made doing some kind of a test print.
Does anyone remember this, or am I on drugs or something? 😉