Define Mesh Inset as 0

[oLuisMatias]

Hello,

I have a clean bed without clips and I would like to maximize the probing area.
I'm trying to change Mesh Inset to 0 but on LCD I still have a minimum of 10.

Is it possible to set it 0?

Thanks for the help :)

What I've tried ↓↓

1. Changed in UBL the inset to 0: [Configuration.h]

//===========================================================================
 //========================= Unified Bed Leveling ============================
 //===========================================================================
...
 #define MESH_INSET 0              //IT WAS 25 // Set Mesh bounds as an inset region of the bed  // MRiscoC Center mesh
 #define GRID_MAX_POINTS_X 3      // Don't use more than 15 points per axis, implementation limited.  // MRiscoC Customizable by menu
 #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X

2. Set Probin Margin = 0: [Configuration.h]
   #define PROBING_MARGIN 0 //IT WAS 10 // MRiscoC Avoid clips on borders

3. Disabled proui_ex verification: [proui_ex.h]

// #if (PROBING_MARGIN!=10)
// #error "PROUI_EX requires a PROBING_MARGIN of 10."
// #endif

4. Changed mesh inset: [proui_ex.h]

#define GRID_MIN 3
#define GRID_LIMIT 9
#ifndef MESH_INSET
  #define MESH_INSET 0 // IT WAS 25
#endif

Bed dimensions

// The size of the printable area
#define X_BED_SIZE 225  //IT WAS 230 // MRiscoC Max usable bed size
#define Y_BED_SIZE 229  //IT WAS 230 // MRiscoC Max usable bed size

// Travel limits (linear=mm, rotational=°) after homing, corresponding to endstop positions.
#define X_MIN_POS 0  // MRiscoC Stock physical limit
#define Y_MIN_POS 0  // MRiscoC Stock physical limit
#define Z_MIN_POS 0
#define X_MAX_POS X_BED_SIZE + 20  //IT WAS 248 // MRiscoC Stock physical limit
#define Y_MAX_POS Y_BED_SIZE  //IT WAS 231 // MRiscoC Stock physical limit
#define Z_MAX_POS 195  //IT WAS 250 // Ender Configs

[mriscoc]

"PROUI_EX requires a PROBING_MARGIN of 10." So, you can change the PROBING_MARGIN to 0 by disabling PROUI_EX it in the Configuration.h file.

[Abasz]

I am hitting the same topic (magnetic bed, no clips). What is the practical reason behind only allowing 10mm PROBING_MARGIN? Why cannot this value be reduced?

Thanks in advance.