Lift z when Auto home

[156801]

Hi,

how do I make the hot end raise about 10 mill when I auto home?

At the moment when auto home G28 the hot end moves X, Y to 0. Z does not move. When the hotend then moves to the bed the nozzle some times scrape on the bed. If it does not scrape, all axis work fine.

Any help would be helpful.

Robert