I wanted to mount the home switches UNDER the table for protection, so this is how I mounted them:

First a small angle iron drilled with mounting and switch mount holes:






 

The two switches are mounted with one length of shielded twin pair cable. The strain relief is mandatory.
 

All switch connections are soldered:
 

The saddle is drilled & tapped to receive mounting screws:
 

The top switch is activated when it contacts the stepper mount. The lower one will need a ramp/stop:
 

The switch wiring is routed inside BX conduit for maximum interference protection:
 

Both switch wiring and stepper wiring are routed under the SX3 base:
 

All wiring is enclosed in cable protectors from Advance Auto store:
 

Exit of stepper wiring and switch wiring from back of base:
 

The Y switch actuator ramp/stop:


Mounted to base:
 

After adjustment, the ramp/stop is bent for repeatable support:
 

Z home switch wire is routed through drilled holes in column. Underneath base, the wires join the
BX cable, then exit from back of base:


 

Switch is mounted to simple aluminum plate and screwed into tapped holes in column:
 

Wire is soldered to switch:
 

That's it. I don't use limit switches for steppers--Only soft limits set in Mach3. You could use these three
switches also as limits though.

CR.