autobed out of range

[zetaz]

Hello
i use a new printer, Emergin Trium 3d.
it's a delta printer, marlin firmware, hotbed 220mm, 440mm high.
When i want to use S3D bed leveling, the software put the head out of the bed ( 50mm) why ? i set up the printer X 200 y 200 z 400
Thank you

[CompoundCarl]

If you have a circular bed with a diameter of 220mm, then you need to use 0.707*220 = 155.5 for both the X and Y build volume. This is explained more below:
viewtopic.php?f=9&t=5075&p=21943#p21943