choosing a 240v single pahse cnc milling machine

[mekanik]

Hi Jeromep
Welcome to the forum.
As i didn't see any reference to Plasma cutting i will assume you just need a sturdy milling machine. if you can manage with your quoted cutting area of 150mm square you could make a very rigid fixed gantry machine,others will advise you regarding the spindle speeds required for such a build. do as advised by kingcreaky and have a look @ some of the build logs, thing is 150mm working area is small and once you have it up and running you are going to be wishing you had made it a bit larger, but have a read and give the lads some idea of the type of work you want to do, small work might need a high spindle speed.
Hopefully Jazz or others will offer some advice.
Regards
Mike