I'd like to hear from those that have used the latest interation of DYN4 and their 1KW and larger AC servo drives. I know in a recent thread that MACTEC suggests they are almost on par with Yaskawa, but there is such a price spread its hard to imagine.

Anyone use them to retrofit a Vertical Machining Center or CNC Knee mill? Great for intermittent hobby/light commercial use or will they stand up to the rigors of daily VMC use?

Thanks in advance for any feedback. Service after the sale and repair comments appreciated as well.
Marty