Re: [CAD_CAM_EDM_DRO] Re: Moog: Servo for Z?

blown_mgb_v8 wrote:

>I've torn down the head and have the lower casting in the truck for
>clean up and trimming. Anyone have a suggestion as to a good servo
>to use here or how to best set it up? My thoughts are to cut away
>the side housings which contained the hydraulic actuators, eliminate
>the manual feed handle and shaft altogether, cut the heavy side off
>the quill coupling yoke and mount a ballscrew and servo on the left
>side.
>

Well, I'm not familiar with the Moog head, but that generally sounds OK.
You want to
keep the ballscrew as close to the center of mass of the head, and as
close a possible
to between the dovetail (or other) ways, to prevent a rocking force on
the head.

> Anyone think this is good/bad? I haven't got the ballscrew for
>it yet. This machine has a 2 hp head and will occasionally be used
>for drilling large holes so the servo package will need to be able
>to generate quite a bit of downforce.
>
>

The Bridgeport power quill feed has an overload clutch set for 200 Lbs
of linear
force. You may want to set it up for a bit more than that, depending on
the size
tooling you plan to use. You may need a quite massive ballscrew for this.

Jon