Pinda always fails on third calibration
So, at first I did XYZ calibration and everything was fine. First layer calibration worked good as well.
I started to get layer shifting, so i went through troubleshooting, updated firmware etc. and finally got that problem solved (loose screw). However, since I did that I cannot print. During calibration I always fail on the third calibration point. SO far I have adjusted the pinda a few times using the zip tie to offset the probe. I have re-run XYZ calibration and everything goes fine. However, I cannot set the first layer because I ALWAYS fail at the third point.
Re: Pinda always fails on third calibration
Not sure on this one,
Have you tried contacting Prusa on the live chat on the store page?
Re: Pinda always fails on third calibration
I had this.
Had to reset the thing to defaults and reflash the firmware (after chatting to support about it) and it stopped happening.
Re: Pinda always fails on third calibration
I think what you describe is exactly the same thing that happened to me last week when I was messing the brackets at the top of the Z axis screws. I either had the screws on the right loose or forgot to put one in. When the machine did the homing portion of the Z axis calibration (driving both into the top stops) it calibrated a little bit off.
During the mesh measurement it starts on the left, them middle and the 3rd point is the first one on the right side. The software may be noticing the mesh adjustment would be too large and it 'fails'.
A think you can check is to start the Z axis calibration and watch VERY carefully how each side of the X axis carriage parts hit the screws at the top of the frame. Look for obstructions such as the filament sensor harness, the filament spool bracket and stray filament. You could also attempt checking by eye if the carriage has good left-right symmetry. A second possibility is that the homing of Z is perfect but the X axis carriage system is somehow not even due to something with the rod mounts or frame, etc.
or.. of course it could be something else of course -good luck!