Faulty Einsy Board?
My MK3S developed a sudden problem today. The PINDA sensor is not being read correctly. Trying to do a Z axis calibration results in the nozzle contacting the heat bed and giving an error message that reads "Bed leveling failed. Sensor didn't trigger. Debris on nozzle? Waiting for reset." What happens is that the red light on the PINDA sensor goes off when it nears the bed, so it appears as though the sensor is OK. However, when I check the Sensor Info it only reads 0 and never changes to 1 when metal is placed near it.
I was chatting with Prusa support and I was told that the Einsy board is likely faulty. If the sensor cable is disconnected from the board the sensor info should automatically read 1, but again it stays at 0.
I certainly have no reason whatsoever to doubt Prusa support, and I will be ordering a new Einsy board. However, for my own peace of mind I wanted to ask the forum if this is indeed the likely cause of the failure? Has anyone else encountered this?
I will also add that I have a second printer, and I connected the PINDA from that printer to the first printer and was given the same error, so it certainly sounds like a board problem.
RE: Faulty Einsy Board?
Try a factory reset. You may have a bad pinda.
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Chuck H
3D Printer Review Blog
RE: Faulty Einsy Board?
@cwbullet
Did a factory reset. No go. When it came to the z axis check it just drove the nozzle into the bed and kept going. I had to cut the power.
RE: Faulty Einsy Board?
I received a new PINDA sensor today. Same faulty behavior so that would point to the Einsy board being the problem. I should have a new Einsy tomorrow.
RE: Faulty Einsy Board?
It is one of the two - Einsy or Pinda Probe.
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Chuck H
3D Printer Review Blog
RE: Faulty Einsy Board?
It is one of the two - Einsy or Pinda Probe.
It was definitely the Einsy board. I replaced it literally 1hr ago and I'm printing again.
However, I'd like to protect the Einsy from static better. I have noticed at times when I touch the frame I get a little static. So I think I'll start another thread about how to protect from static or grounding the frame better. I have the older silver power supply on this particular printer.
RE: Faulty Einsy Board?
@buckeyestargazer
I replaced on last week. It was 2 years old and was giving odd errors. It still printed. I save the old one as back up.
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Chuck H
3D Printer Review Blog
RE: Faulty Einsy Board?
@buckeyestargazer
Electrostatic discharge is a widespread problem and has already resulted in some malfunctions (resets or defective electronics). I always discharge myself on a grounded piece of metal (vise) before working on the printer.
Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.
RE: Faulty Einsy Board?
@buckeyestargazer
Electrostatic discharge is a widespread problem and has already resulted in some malfunctions (resets or defective electronics). I always discharge myself on a grounded piece of metal (vise) before working on the printer.
Yeah I've already started touching a nearby metal chair to dissipate the static. I just wish the Einsy board was somehow better protected. I have no other explanation for the failure other than some sort of electrical issue.
RE: Faulty Einsy Board?
@buckeyestargazer
I am not sure how wide spread the problem is. You are an N of 2. I have not seen a lot of posts on this.
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Chuck H
3D Printer Review Blog
RE: Faulty Einsy Board?
I had a couple of experiences with static electricity freaking out my printer. I've seen a few (maybe 3 or 4) other posts of people having similar issues.
In my case I had the LCD screen glitch and display gibberish and/or go completely blank. I had one incident the static discharged appeared to result in a full printer reboot. I don't think any of that could have been good for the electronics.
None of that occurred until after I put my MK3S+ in an enclosure and removed the PSU from the chassis of the printer. Guessing the move of the PSU from the chassis affected printer grounding, I attached a ground wire from the chassis to the (now) external PSU. I've still experienced some very minor static when removing the build sheet from the XY carriage after a long print, but nothing significant and no issues with the display or rebooting.
RE: Faulty Einsy Board?
@egar
This has been discussed a few times in the German-speaking forum. I myself also had the problem with electrostatic charge (not only on the printer). But it depends on the environment (very dry air, clothes, shoes...). I have grounded all elements of the printer and always make sure that I discharge myself.
Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.