<p>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:</p>
<pre><code>#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
</code></pre>
<p>in Marlin's <a href="https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.1.x/Marlin/Configuration.h" rel="nofollow noreferrer">Configuration.h</a> file. So assuming you'd want the same number of points in each direction, change the <code>3</code> to another value less than or equal to <code>7</code>, and recompile Marlin.</p>

CC BY-SA 4.0
2022-08-09T13:37:42.033Z
2022-08-09T13:37:42.033Z
Caleb
<p>I have an Ender 3v2 and I recently installed the CR Touch auto bed leveler. I was wondering how to add more probing points.</p>

CC BY-SA 4.0
2022-03-17T21:16:08.260Z
Are you running the stock firmware, upgraded firmware, or custom firmware, i.e. Jyers UI?
agarza
CC BY-SA 4.0
2022-08-09T17:56:13.887Z
You will need to compile you own version of the firmware.  Teaching tech has a detailed video describing the entire process for beginners (https://www.youtube.com/watch?v=J9vxJT5Tgh4) and then another one (https://www.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.
codingCat
<creality-ender-3>
How to add more probing points on the CR Touch
chuy0414
# How to add more probing points on the CR Touch

(Asked by: username_0 on 2022-03-17)

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

**Tags:** creality-ender-3

> **Comments:**
> **username_1**: Are you running the stock firmware, upgraded firmware, or custom firmware, i.e. Jyers UI?  
> **username_2**: You will need to compile you own version of the firmware.  Teaching tech has a detailed video describing the entire process for beginners (https://www.youtube.com/watch?v=J9vxJT5Tgh4) and then another one (https://www.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.  

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## 1 answers

### Answer by username_3 on 2022-08-09. Score: 1

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](https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.1.x/Marlin/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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