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hi
is it possible to use the 3 XYZ axis switch as both reference and software limit switch ?

++

do you want to use a single input pin for 3 switches for 3 axis?
if parallel wiring you have to use NO switches. if serial wiring you need NC switches
it should work but only if no slave axis (like 2 steppers for same axis, master and slave)

hello sebba
d

o you want to use a single input pin for 3 switches for 3 axis?

i prefer to use NC contacts, there will be no slave axes
so it is possible to use one input for 3 axes??
for safety I can connect the limit switches to another input?
++

Yes, its possible.