Please give us the 11 x 11 bed calibration with heated bed!

[brent113]

Prologue and important note:
I still 3D print just fine.

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You can compare to my carriage in this thread: Carriage Tolerances - Unusable Over Distance >75mm From Center

and my bed here:

On achieving a perfect level

Tony’s spreadsheets are a wrapper that helps generate the syntax for the M421 command. Where the data comes from is not terribly important as long as the measurements you take are at the same place the firmware thinks it is. G42 can be used to move the head to mesh coordinates from 0…4 in I and J (firmware’s names, not mine). It you took manual measurements with a paper card, that’s great. If you took measurements with a dial indicator, that might be better. I took measurements on my board wit…

Bonus picture of the carriage on a known flat surface: