Hello,

I recently received an Anycubic Linear Plus Delta printer. I have been messing around with the Marlin firmware for the past several days, because I cannot get the bed level. Now, for some strange reason, the printer is acting like the bed is concave. The center point is much lower than the outside radius, 6-9mm lower to be exact. What could be causing this? Is it something to do with the radius setting in Marlin?

Any help would be greatly appreciated.

Here are the exact numbers:

- The printer has a height of 300mm, with a 3.4mm offset, making the height 296.6mm

- The printer has a build radius of 230mm

- In M503, the radius is set to 98.4

- The center is located at X0 Y0 Z0

- Z Tower: Z8.5

- Y Tower: Z6

- X Tower: Z8.2

- Between Z and Y Towers: Z6.5

- Between Y and X Towers: Z6

- Between X and Z Towers: Z7.7