Saving G29 Bed Level Correction Matrix to EEPROM

[Roxy]

...
When I now try to home x or do a G28 the machine moves away from above position into the wall or out over the limits. In other words, wherever on the bed z is triggered,
the machine acts as if x and y are home.

If no G29 is performed, all works good. I also have to say that everything worked withe that same fw, flawlessly for weeks, until I changed the z offset on a viki lcd to not
have to change it in the fw and flash. Ever since I have this phenomenon. I swapped boards, unplugged the viki, changed firmware and believe it or not, a second machine with the same setup is now having similar issues.

...

What could I be missing?

We are fighting a similar issue in this thread: http://3dprintboard.com/showthread.p...lling-Glitches

If you scroll to the end, I have some debug code inserted into his Marlin_main.cpp file. I suspect we are going to get his problem figured out pretty quickly. And there is a fair chance his problem is the same as your problem.

Fri, can you post your Configuration.h file? I want to check something.

[Fri]

We are fighting a similar issue in this thread: http://3dprintboard.com/showthread.p...lling-Glitches

If you scroll to the end, I have some debug code inserted into his Marlin_main.cpp file. I suspect we are going to get his problem figured out pretty quickly. And there is a fair chance his problem is the same as your problem.

Fri, can you post your Configuration.h file? I want to check something.

Sorry for not getting back sooner, I am traveling for the next week.
Roxy, i am going to try the marlin main cpp you inserted.

Please see attached config.h of my original fw that worked and then stopped. Viki and eeprom are turned on.

[Roxy]

Fri, do any of the end point limit switches get pressed by the bed when you are doing a G29?

[Fri]

No, it does not. Have to say, I don't have any endpoint limit switches.

[AbuMaia]

How do you home X and Y without endstop switches?

[Fri]

How do you home X and Y without endstop switches?

I thought you were talking about max limit switches. I do of course have endstop switches x y z min.

[AbuMaia]

Do any of your min switches get hit during a G29?

[Fri]

Yes, Z . I am using a proximity sensor. Z is then also triggered at the last leveling point.

[Fri]

Attachment 3487Attachment 3488Attachment 3489

This is after a factroy reset M502, M500 G28 G29. Then the eeprom after a reconnect/reset.

[Roxy]

Attachment 3487Attachment 3488Attachment 3489

This is after a factroy reset M502, M500 G28 G29. Then the eeprom after a reconnect/reset.

It would be helpful to see the Bed Level Correction matrix.