Calibration of complete Bed Size

[xchrisd]

It was a common problem in the past that the bed was not level cause of 3x3 calibration.

Have a look here:

SM2 Bed Leveling

@parachvte, Does the SM2 use the UBL style of bed leveling in the Marlin code? I presume it does since “G29” is used. That’s “Unified Bed Leveling” for those who loath acronyms! For more info see: https://marlinfw.org/docs/features/unified_bed_leveling.html A question related to this, is anything saved when you do a Z-offset or is it only used for the current print?

How to do a larger than 3 x 3 matrix level

So here’s my attempt at doing a leveling matrix larger than 3 x 3. Please be advised that this is not for the faint of heart. If you mess up this process you can bury your nozzle into your print surface. I know, I did. I’ll try and tell you how to avoid that. If you aren’t having any trouble with the first layer of printing then this process isn’t for you. I am doing this on an A250, so you may have to change some things for your size Snapmaker. The controller has a version of leveling that the…