Nozzle Touches Print Bed After MBL During First Layer Calibration
Received someone's Prusa MINI+ and I know absolutely nothing about 3D printers. It originally had the 4.something firmware, but I was having blobby issues and wanted to clean the nozzle -- had issue with not preheating above 170 and read that was a firmware issue. I've now updated to 6.0.1 successfully. Tried First Layer Calibration again. Procedure is a bit different than what it was doing on the previous firmware, but what concerns me is after the mesh bed leveling step at 170 degrees it lowers the nozzle to fully rest on the print bed in order to preheat the rest of the way to 215 for the actual first layer print test. It most certainly did not do that before and it concerns me. Aside from during that second preheat, it doesn't touch the bed and actually seems to need to be lowered based on the print test. Is this actually an issue? Am I just panicking for no reason?
RE: Nozzle Touches Print Bed After MBL During First Layer Calibration
Well, I decided to go ahead and clean the nozzle and try it one more time and discovered A) the preheat issue is still happening, so updating was pointless in that regard and B) now it's smashing the nozzle into the print bed halfway through the MBL part of the First Layer Calibration. Still interested in getting advice/answers but for now I'm just going to find an older version of the firmware to set it back to and hope that makes it calibrate correctly again (calibration was running fine on the firmware I acquired it with, I was just having print issues)
RE: Nozzle Touches Print Bed After MBL During First Layer Calibration
make sure to do a factory reset of the device and check if the print bed did not move so that PINDA sensor is not detecting the metal bed and thus tries to move lower than it should.
See my GitHub and printables.com for some 3d stuff that you may like.