Hi Jools
As you say, the hurco is about £8000(£32K delivered) more, without going into all the details, that pays for
Coolant
twice the spindle speed and torque
Rigid tapping
25% faster feedrates
Arm type tool changer
800kg of extra metal
Larger xyz(just! 457 x 356 x 356 mm)
The hurco control and conversational stuff
£1000 tooling voucher
Hello Maximus :-)
Coolant - I Don't need, though am more than capable of adding a pump and coolant line. A manual swith to operate it, though I bet I could get an arduino to sense when the spindle fires up and do an auto start :-)
twice the spindle speed and torque - I don't need. 4k will cut at the speeds I need as I'm low volume
Rigid tapping - Don't need it now, can add it later though within a day if need be. If I grow the machine grows with me.
25% faster feedrates - Don't need. I do low volume high value, the machine isn't working all day every day so speed is low down on the list of needs.
Arm type tool changer - Don't need. As long as it changes tools I'm happy :-)
800kg of extra metal - Don't need. I'm machining Delrin and Aluminium and have seen the finish that machine shops get on steel when I saw them in action. It looked perfect to me.
Larger xyz(just! 457 x 356 x 356 mm) - Don't need and actually wouldn't let me put more than two of my largest parts on the table at a time anyway. The Haas can fit two on too. On the smaller parts the Haas can let me do more than enough for batch machining.
The hurco control and conversational stuff - All my stuff is designed on CAD / CAM so this is not needed.
£1000 tooling voucher - Don't need. I only need a few collets to get me started which will set me back about £300
Haas - single phase
That's just my needs though. Everyone else will probably differ.
As an aside I've heard from a few people that running these three phase machines from a rotary phase converter can cause issues. Not sure how true that is but something to bear in mind if there is a risk of blowing a board. Think it's something to do with balancing of the phases but again not sure if this is rumour or not.
Another thing with the Chinese mills is post processors for any CAM design you do. The Syil group on facebook has discussions about people still editing them to get the machine to work. The OP would have to make sure any Chinese control is supported by the CAM program he would want to use.
Jools