Hi Doddy

Thanks for the reply.

I'm not sure what you mena when you say the "overspending the drive by 50% compared to the spindle" - does this mean the VFD is overpowered for the spindle?

The reason for the air-cooled options was to keep the set-up simpler to options I am a bit more comfortable with. I wasn't aware that the water-cooled version operated with less noise - since the machine will be used a lot in my home office for protyping, that can be a big advantage (although I intend to also build sound insulated enclosure). It seems that it is possible to get some complete kits so I will look into it. What size/volume is your system?

I will mostly cut small enclosures (45mm - 75mm) from hard engineering plastics of ± 12 - 20mm thickness. I need a set-up that can work continuously at speed with good spped/feed rates and DoC and intended to get a 2.2KW spindle - the CNC is primarily for work purposes to get a job done - although I won't really need end mills larger that 1/2'. I just want to be able to machine comfortably.

Thanks