Thanks guys,

Sage advice as usual.

BTW - if you have time I have a couple of other areas I'm looking into:

1. I have a spray gun (also powers my airbrush) compressor and was thinking of using this for tool cooling/chip blowing - I notice Jazz you mentioned misting in another thread and am guessing this is just essentially atomising lubricant/cooling fluid into the air stream? I should be able to whip up a suitable nozzle if that's the case.

2. I'm also looking to run a 2.2Kw water cooled spindle with an arrangment of PC cooling rads (2xdual 120mm left overs from PC watercooling), which should bring the water in the curcuit+tank down to ambient air temperature. The tank will likely be somewhere around the 10-15L capacity mark, dependant on the room I have left under the workbench.