Hi people,

I'm about to upgrade my kress spindle to a 2kw or over spindle. I need a 1/2 inch collet so I'm guessing that would be an ER20 ?
ebay as you know has loads of Chinese spindles but is there anything I should be looking for when choosing?

Also any advice on water or air cooled would be great. The least noise the better !

Finally, is there anyway I can control spindle speed from mach 3 ?
Currently switched by the breakout board relay but I wondered if there was a vfd and a control board that talks to each other to make this happen ?

Many thanks
M Pecker