[Beginner] Layer shift & Thermal runaway
Hello everyone.
So this is my first printer. The build went smoothly, apart from needing a replacement thermistor as I was sent the wrong one, and I finished it last night. I set my first layer height and printed the whistle perfectly fine. I then decided to run an overnight print. The gearheart file. I used Prusa's Slick3r build and set the printer off.
This morning I got up to find there was a layer shift at a certain height across all the parts? What could of caused this? I checked the fail log and it said there had been 6 crashes detected and 8 power failures. After playing around I realised switching it off counts as a power failure and when I hoped the printer counted a crash (Although not ever time I must add) so that really gives me no clues as to what happened? It's only in one layer across all the parts.
Secondly as I sat in front of the printer, nearing its completion, it was at about 96% it stopped and displayed 'Thermal Runaway'. Now I must admit, I don't really know what this means, what could have caused this?
It might also might be worth noting that the surface of the print is perfectly smooth. There are 2 points (in the same layer) where it looks like the nozzle either under extruded or as if the nozzle dug in? No idea what caused that/could have caused that, not even sure what it wold be called.
I don't know how to include images here but I made little folder on imgur here: https://imgur.com/gallery/rQ9q9
Thank you.
Re: [Beginner] Layer shift & Thermal runaway
Since that point my printer has failed two print attempts and restarted twice. It is now failing to start. please see video:
I guess I will have to contact support now 🙁
Update: Support are sending a new PSU. After an hour or so I unplugged the printer and plugged it back in. I got life, enough to start a print. The hot end heated and it started the first layer. After the first layer at 215C it drops to 210C, at this point the cooling fan ramps up, the temperature dropped to 208 and the fan slowed down and I assume the heater kicked in. At this point the temp was still dropping but the printer caught it at 204C. The draw from the first and second cable dropped and the printer then died and restarted. Since then the printer once again won't restart and I am getting a flickering LCD again.
Anyone else experiencing this?
Re: [Beginner] Layer shift & Thermal runaway
Did you double check all the wires?
no loose connections, all power supply screws / wires still attached?
take the SD card out if there's on installed.
Re: [Beginner] Layer shift & Thermal runaway
Yep, ran through all that with Prusa support. I have since been able to turn the printer on after leaving it a while but it won't print, it just restarts every time and adds +1 to the power failure counter, so you know, at least I know that is working 😀
I am really hoping I can get the PSU by the end of the next week, they were fairly fast with the thermistor.