Latest 01.05.00.00 firmware broke calibration from Bambu Studio?

01.05.01 fail overhang test issue and may damage hotend
01.04.02 still fine

Yes, I’ve had models that seem to completely ignore the K-factor value leaving 1mm holes in starts and stops on fast models where the seam is

its not in the wiki yet

I ran the k factor pattern test and set it back to what I had, and the prints look great running 1.05.01. This hot fix did not fix the bug that people are seeing with it honoring what was preset.

Curious why an overhang test would damage the hotend. Could you elaborate?

Is 01.05.00.01 good now? I don’t want to upgrade if it’s still kind of broken. I can’t afford the down time.

After the update P1S 01.05.01 I had it for the first time in 6 months that the pressure plate goes down into the end stop. I hope that was just a coincidence. No problems.

After reinstall it better now, during overhang test the nozzle isn’t stuck anymore ,1.05.01 has great motor noise cancelling,smoother printed walls but the result of overhang parts not what I’m expecting, still try more filament and speed settings

I would definitely check your over/under extrusion as well.

https://www.printables.com/model/294234-overunder-extrusion-test