Questions about How Auto Bed Leveling Works

[Roxy]

Hey auto bed leveling Guru's,
Does auto bed leveling allow the Z axis to dynamical vary during the first layer from 0 on the right to 0.2mm on the left instead of being completely fixed at 0?

Yes, once the bed level correction matrix is generated... All coordinates given by the GCode get translated to the new coordinate system. Check out:

http://3dprintboard.com/showthread.p...ll=1#post27846

Can I get the auto bed leveling to take more than 3 points. I want it to take 3 to 4 across the x and y. I would like to see it do 9 to 12 points on my bed as it is now. Is this something I can get it to do if I can tell it where I want those points to be?

The original code took 3 points. If you want to do that for legacy reasons you can. The 3 point plane is still in the firmware. But right now the firmware is doing an n x n grid and taking a least squares fit to determine the new coordinate system.

There is work in progress from some of the people here to automatically limit the n x n grid being probed to the size of the print on the print bed. This will help accuracy.