Lift Z after brush

[smwoodward]

Added Z lift after brush

[barecool]

may I suggest making it configurable via _USER_VARIABLES
like
under variables.cfg add

variable_purge_lift_z: 5

nozzle_cleaning.cfg

{% set lift_z = printer["gcode_macro _USER_VARIABLES"].purge_lift_z|default(5)|int %}

G1 Z{lift_z} F{Sc}

[Surion79]

maybe it would be easy to use existing homing zhop?

[Frix-x]

We also have to take care of machines where the brush is fixed to the side of the machine and the bed is moving (like on a V0): in this case the Zhop is not needed because the distance from the brush to the nozzle is not affected. I have such a machine and that's why I never implemented this zhop in the beginning.

But I'm all for it if we manage to make it a bit more intelligent :)