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Started printing this filament shrinkage test and had to leave the house. When I came back, the whole upper half of the part had shifted after the first few layers, and it left two solid blobs attached and one ball of spaghetti. The magnetic bed doesn't appear to have moved. Part is still solidly adhered to the print bed. How did this happen, and how can I keep it from happening again?
I'm shocked at how much it recovered. I'm also glad I'm not the only one still running an ender 3.
Do you have a multi meter? You might have to adjust the little screw for the y motor. I'll see if I can find the instructions for that. The wires in my pic are from the uart mod so I can do it in software.
Edit: people called it vref adjustment. You want it low enough that the motors don't overheat but high enough that it can move the bed and the print without skipping. If you have an aftermarket board the procedure might be different and you might be able to do it in settings.
Also if you haven't already, I would also recommend unscrewing the wires one by one in the green screw terminals and clip off the soldered ends and strip off enough to put the bare wire back in and screw them down to avoid the fire risk. Crimped ferrules would be better but that needs a crimper and the ferrules.
Here's what can happen with the stock soldered wire ends:
And I caught this one as the electronics were off the printer and outside of my old ikea lack enclosure. If you dont notice it it could be really bad.