Calibration failing


#1

My Flux keeps failing calibration.

95% of the time, it attempts 5 cycles, gives up, and gives the “clean obstructions” message. The rare occasion where it seems to succeed, the print usually still fails because the calibration seems a little off. The nozzle regularly gently scrapes the bed at around the 7 o’clock and 1 o’clock positions (regardless of bed orientation), blocking extrusion, and preventing proper adhesion of the first layer.

What I’ve tried so far:

  1. cleaning the bed and nozzle, even calibrating with no glue on the bed
  2. manually retracting the filament about 2 cm to ensure no oozing and thoroughly cleaning the nozzle
  3. every orientation of the bed and tool head
  4. testing the bed’s flatness by checking if it rocks when placed on a flat (polished granite) surface
  5. adding a glass mirror which should be perfectly flat
  6. delta firmware versions 1.3.b8, 1.3.b2, and 1.1.7

I’m out of ideas. Anyone have any suggestions?


#2

This might be your problem as same as mine previously, that was failed on calibration all the times. The correct nozzle position


And bad one like mine

If that’s a case, you submit a ticket and get a replacement.


#3

Hello!

I’ve been having failed calibration also. However, I’ve found that for me it’s got to be my table where my FLUX is on. I suspect it’s not evenly flat. So as a quick fix I noticed if I raise parts of the build plate slightly, I can make a successful calibration. A small paperclip at one corner, another at a different corner and it seems to work every time.


#4

There is link for the same topic Error "Unable to calibrate base plate"