Hardinge Lathe CNC Retrofit/Conversion

[m_c]

So something like the Ecogoo 7.5KW directly into a lathe? What lathe?

This lathe - http://www.mycncuk.com/threads/13970-New-CNC-lathe-day

My current set up is-
7.5KW Boost VF -> sine wave filter -> idler motor (the setup may work fine without it, but it does provide a bit surge/buffer capacity) -> 3ph distribution.
For sine wave filters - https://www.controlpanelproducts.co....o-1200A-CNW933

Due to the workshop being fed via a quite sensitive RCD, I do also have a 7.5KVA isolating transformer feeding the VFD, but you shouldn't need that.

With that setup, the lathe runs fine, although it does dim the lights if I reverse the spindle...