Re: gecko and brakes

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "sparkazoid2001 <mark@c...>"
<mark@c...> wrote:

> in my quest to cnc my brigeport type mill a friend who has a

centroid

> machine was concerned about braking for the servos?
> --mark

If you power the Knee of the machine instead of the quill and
you are planning on using ballscrews then you will have to
consider this.
It will make a difference if you use any additional gearing too.
The More direct the gearing is toward the ballscrew the more of
a chance there is that backdriving will happen when the servos
are powered down.
The lead of the screw used and the weight of the table will
determine how much backdriving force is exerted.
Good Luck