Re: [CAD_CAM_EDM_DRO] Re: Re: replacing feed screw with a hydraulic cylinder

blown_mgb_v8 wrote:

>Thanks Ray, I saved your reply for future reference. I also fat
>fingered my response and lost it, which is a shame, but the
>condensed version is: Probably servos. More specs are model z/zx
>610, res L/L 0.38, v/krpm 27.8, 230v, Tp 18.6 Nm, and Ip 63. Not
>sure what those mean exactly, especially the L/L, Ip and Tp,
>

Ip is peak current, Tp is peak torque. You will have a big problem
finding affordable
servo amps that can run these motors up to the peak torque! 230 V * 63 A
= 19.4 Hp (peak)!
230 V / (27.8 V/krpm) = 8273 RPM. Running a 5 TPI screw at 8273 RPM
gives 1655 IPM
feedrates! Yikes! I think you can run these motors on 100 V, or even
less, and still have
plenty of speed.

Jon