Marlin: Homing at the edge of the Bed instead of the middle[BUG] (short description)

[tifrei]

Hi,

I compiled MArlin 2.0 a few times now but always run into the issue that when i run G28 it homes all the way to the right of the ender 3.

Bed_size is set correctly.
Probe is working, but when running g29 it tries to run outside the bed.
I hope anybody can help me cause this is driving me crazy

Config.H is attached.

Archiv.zip

[Kokorone]

Personally I dont directly define Z_SAFE_HOMING, which you have in your config as 115. That should be fine, but I'd go with this to make sure it always homes in the center.

define Z_SAFE_HOMING

if ENABLED(Z_SAFE_HOMING)

#define Z_SAFE_HOMING_X_POINT ((X_BED_SIZE) / 2) // X point for Z homing when homing all axes (G28).
#define Z_SAFE_HOMING_Y_POINT ((Y_BED_SIZE) / 2) // Y point for Z homing when homing all axes (G28).

endif

[ManuelMcLure]

This could be caused by incorrect microsteps set on your TMC2208 drivers. It looks like you've got it configured with 20 tooth pulleys on 1.8 degree motors with 16 microsteps - if instead your drivers are running at 8 microsteps it will home X and Y fine (although faster than expected) and then move twice the distance when moving to the safe homing point.
What does M122 report for the TMC2208 settings, specially msteps?

[thisiskeithb]

Did you remove all the jumpers under the X & Y drivers?

[tifrei]

Hi @ all,

Yes the jumper are removed. I had this setup working and just changed to the newest firmware cause i changed the hotend mount and needed to edit the probe offset anyways. @ManuelMcLure ill check that whenever i get home. But its weired that Y goes in to the mid point and only X goes all the way to the right.

[thisiskeithb]

Did you reset your EEPROM by sending M502 and M500 after updating your firmware?

[tifrei]

I did not i thought it will be deleted by flashign the new firmware?
Im gone try all of your tipps later and let you know! Thanks for the response !

[Glodigit]

May be related to bug #15577.

[tifrei]

@thisiskeithb you were right it was th eeprom. Thanks To all! And shame on my stupidity!

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