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I have an Ender 3v2 and I recently installed the CR Touch auto bed leveler. I was wondering how to add more probing points.

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  • $\begingroup$ Are you running the stock firmware, upgraded firmware, or custom firmware, i.e. Jyers UI? $\endgroup$
    – agarza
    Mar 17 at 21:16
  • $\begingroup$ You will need to compile you own version of the firmware. Teaching tech has a detailed video describing the entire process for beginners (youtube.com/watch?v=J9vxJT5Tgh4) and then another one (youtube.com/watch?v=neS7lB7fCww&t=792s) for the BLTouch modifications for Marlin. Take care, his wiring diagrams make assumptions based on other videos he has made. $\endgroup$
    – codingCat
    yesterday

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I haven't tried it, but it looks like the number of points in each axis of the probing grid is defined by these lines:

#define GRID_MAX_POINTS_X 3    // Don't use more than 7 points per axis, implementation limited.
#define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X

in Marlin's Configuration.h file. So assuming you'd want the same number of points in each direction, change the 3 to another value less than or equal to 7, and recompile Marlin.

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