Does calibration with a board put the Y in the wrong direction

[ANaaim]

Other question :

When using board calibration, the data are ... upside down. Is it the expected behavior ?

Sorry for all the question, I am finishing a V1 for my tool-box ^^ so... a lot of use case

[davidpagnon]

Definitely not expected, but it can happen depending on the pattern of the checkerboard. I have not been able to check, but I think the X axis goes from the black corner to the other black corner, and the Y axis from the black corner to the white one. So if you have something like in the picture below, you end up with a Z axis going underground.

The solution to this would be to print another checkerboard, mirrored from this one.
I'm not a 100 percent sure of this so I'd be grateful if you can confirm!

(Note that in any case, you need to have a number of rows different from the number of lines, otherwise it will not be rotationally invariant and axes will be attributed randomly).

[ANaaim]

Ok 👍 I Will investigate :)