Second bad PINDA? How fragile are these?
My first PINDA sensor died so PRUSA sent me another one. The thermistor on the heater block went out and after installing, I can't get the printer to calibrate. I've been told that this is due to a PINDA that I somehow damaged changing the thermistor in the heat block. How is that possible? Is there some protocol for these?
Re: Second bad PINDA? How fragile are these?
They are not fragile, nor should this be a common error.
My guess is there is something in how you are doing the strain relief on the cable bundle that is causing a pinch. Maybe the zip ties are too tight, or a kink in how you are routing it?
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Re: Second bad PINDA? How fragile are these?
Not as far as I can tell. I have everything configured exactly as prescribed by the manual.
Re: Second bad PINDA? How fragile are these?
They seem to quite fragile and fail far more often than they should.
I still have my dead one; haven't bothered to look inside to see how it failed though. It's possibly an internal construction issue. Even if you secure the bundle, the wires internally might still wiggle. Since the carriage moves so much, it piles up.
Re: Second bad PINDA? How fragile are these?
Did you try this test method?
http://help.prusa3d.com/mk2-firmware/testing-pinda-probe
Re: Second bad PINDA? How fragile are these?
Ok well I've been at this all day. Probe worked, then suddenly it won't. They're claiming that I did something to it to damage it, but it's failing on the third calibration point.
They sent me a warped board
They sent me a bad sensor
They sent me a cracked LCD cover
They sent me two bad bearings
They sent me a thermistor that died after 2 weeks.
Now I'm out of the return period conveniently. I bought a PRUSA because I was expecting better quality than this.