Does G29 save mesh data to eeprom?

[batata004]

Hi,

@Roxy-3D is helping me clear somethings out, and I came up with a question: till today I was using bilinear ABL with 16 points (4x4). Now I was recommended to do 100 points (10x10). So surely I want it to be saved to epprom.

I already enabled eeprom usage in my confugration.h file (uncommenting the line EEPROM_SETTINGS) cause I had it disabled. So I flashed my printer and executed the G29 command.

My question is this: does G29 automatically saves the mesh bilinear data to the eeprom or I have to execute some command after that to have it saved to eeprom so next time I turn on my printer it gets loaded and I dont need to use G29 command anymore?

One more thing: if I use the G29 with 3 points (ABL) method on next boot up, will this override the mesh saved in the eeprom OR it will compensate the previously saved mesh to the 3 points recently measured? This may look a stupid question BUT UBL provides this nice feature, you can save the mesh to the eeprom and use a 3 points BAL later just to compensate the loaded values.

[Roxy-3D]

Bi-Linear will save the current mesh when you do a M500. You only get to save one mesh with Bi-Linear.

If you switch from Bi-Linear to 3-point leveling (and rebuild the firmware), you may lose the mesh. I'm not sure about that. With UBL... The 3-point leveling can be applied to the current mesh.

[batata004]

@Roxy-3D perfect! So using the G29 will not save the mesh, I will always need to execute M500 after G29. I didnt find this anywhere in the documentation nor in http://reprap.org/wiki/G-code

Anyway, your answer was very clear! :)

[thinkyhead]

@batata004 This will be a better reference: http://marlinfw.org/docs/gcode/G029-abl.html

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