So those Prox switches that detect metal does that include aluminum which is non-ferrous?
Or is it ferrous metals only they are looking for . e.g. they contain iron.

Those prox switches your buying don't look to be shielded. Should prox switches be shielded or does it not matter so much?

I have just re-read your advice on the KK01 resistors. Thankyou.

Just to clarify are you certain that no resistors are needed going from the KK01 to the drivers, in the step, enable, dir wires?
I can't see why they would of put that diagram in showing different resistors, and I am certain that getting that wrong could be bad.

It's painting electronics by numbers at this end. Sorry for repeat question.
I'm getting my head round it slowly.

Manual : http://cnc4you.co.uk/resources/KK01.pdf

Cheers
Martin