Ground loops and earthing

[EddyCurrent]

What happens then if using a zero touch plate for Z ?

[JAZZCNC]

What happens then if using a zero touch plate for Z ?

You being a smart arse Eddy current or you seriously asking because you don't know.? Because I'm pretty sure you DO.!!

[EddyCurrent]

Just asking on behalf of andy586 as he may come across this requirement later and I didn't want to steal your thunder by replying myself.

[JAZZCNC]

Just asking on behalf of andy586 as he may come across this requirement later and I didn't want to steal your thunder by replying myself.

No your being a smart Arse Eddy but just for the sake of others and Andy586 I'll answer it.

To be 100% sure touch probe will work then you should use Input (+) & (-) terminals with Clip to spindle and Plate for touch off. Yes Spindle may be connected to Earth thru the BOB but you don't know that for sure and actually better quality BOB's or Motion control cards with direct I/O (Like CSLAB's products) don't actually allow this to protect there inputs and protect against Noise etc so force you to use dedicated Negative so they know every thing is at the same potential.

Just because it works doesn't mean it's correct way or actually safe for the BOB.!

[EddyCurrent]

No your being a smart Arse Eddy . . .

That's fine, see Ya !

[JAZZCNC]

That's fine, see Ya !

Well why ask a question you know the answer too that Even the OP didn't ask.? . . . . That's just trying to be a smart arse IMO. Now I'm actually using Mrs Brown's "Elctrocution Lessons" these days so I'll just say . . . 'That's Nice'.!

[andy586]

Many thanks for the replies. Got it all sorted now. Much appreciated!