Thor, or should that be Zeus?

[Desertboy]

Ok, fundamental question.

Is it normal or acceptable to use the same switch (mechanical or proxy) for both home and limit? I dont understand how the machine would know if it was simply sent home or it actually needs to stop as its a limit. Is there logic that says 'ref all' and it goes home but if its hits the home limit during any other movement (manual or programmed) that the machine will then stop?

I know how it works on grbl (Arduino cnc solution) when it's doing a home it ignores the limit so doesn't go into shutdown mode. If it's not homing then it treats it as a limit switch and shuts everything down until reset G code is sent.

I'm sure Mach 3 treats it the same way (I think LinuxCNC does)

If I were you though I would fit another set of limit switch further back that trigger an E stop as well as extra protection! I can maybe help you source high quality IP64 rated microswitches I have a friend who services and repairs 4 poster lifting ramps for steam cleaning bays I'll give him a bell see how much he would charge for new ones if they're cheap enough I'll use them lol.