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Oh sorry, I mistake ! My origin was set to FRONT_RIGHT althought it would be BACK_RIGHT. With this new setting, everything is OK (signal and values). Thanks a lot !

Have you tested my perl script ?

Roxy,
I have some questions :

Why do I have some "+-" before some values of the topography ?

--0.22982 +0.00091 +-0.17644
-0.22815 --0.00807 +-0.13478
-0.17552 +0.19074 --0.04623
I...

Hi,
On Slic3r / Linux, the script is OK as it is. Perl is installed by default.
On Slic3r / M$, you just have to :

install perl if you do not have it (https://www.perl.org/get.html) ;
just...

Hi Roxy,
So I test my perl script with the fork of beckdac ; it is perfect ! The probe is restricted to the printing area, the repetability test is OK, .... Congrats !
So I fork the fork of beckdac...

Of course, it works and you can try it !
1-just download the file from github : https://github.com/syl-20/Marlin/blob/Marlin_v1/Plugins/Slic3r/G29-Post-Processor/auto_bed_printing_area.pl
2-add the...

Hi Roxy,

With my script :
- only one script file (~80 lines) ;
- no need to compile ;
- no initialisation for x_min, x_max, y_min, y_max (with yours, theses variables are set to 9999.9 > if...

Hi,

I hope it is not too late ! I have written a regular perl script for post processing with slic3r. This script replaces the custom Gcode parameters [G29XMIN], [G29YMIN], [G29XMAX], [G29YMAX] by...

Hi,
I'm working on it. I would end it monday or tuesday

I have merged your code with the one of bonm14 from github, this night. It compiles but I do not have tested. I write as soon as posible the post processing script.

yes, with a post processing script

It's the slicing program like cura or slic3r that tell the G29 gcode the position and the size of the area to probe.
It would be an optionnal parameter to the G29. Without this parameter the whole...

Thanks a lot for the explanations, as my algebra lessons are (too much) far away !
I understand there is an average of the values of probes with a Least Squares method ; the BLCM is still 3x3. So,...

Hi Roxy
Many thanks for the enhancements and the time spent here.
Just 2 questions :
1-the n parameter allows to have a n*n matrix of probes. But at the end, the bed level correction matrix is...