Re: Driving a Bridgeport Knee

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Peter Reilley" <micrio@m...>
wrote:

> Just a thought. Have you considered modifying the pedestal mount for
> the nut. This is the casting that bolts to the base of the mill and
> holds the Z axis nut. You could mount the nut in a large ball bearing
> had have the axis drive motor rotate the nut. You would have to
> lock the lead screw with a clamp of some sort. This would allow
> you to continue to use the crank if you released the clamp and would
> put the axis drive motor out of the way.
>
> Pete.

Several problems I can think of:
-Very complex setup driving the nut
-Motor will be in way of knee and limit it's lower travel
-Not easy place to mount motor.
-Need leadscrew clamping mechanism

Scott