Re: [CAD_CAM_EDM_DRO] Re: Counterbalancing & Rong-Fu RF-45 Project

The Bridgeport Series II cnc mills use a air operated counterbalance
on the knee which is their Z axis.

Bob

At 10:04 AM 7/12/00 -0400, you wrote:

>Roland: You must be reading my mind. The air cylinders with a tank with
>a set pressure was what I had in mind. Not enough pressure to lift but
>to boost several hundred pounds. Wouldn't want to create any backlash in
>the axis. Actually,the problem was not in the motor but in the belt
>wanting to skip. I was probably going to need a kevlar or steel belt to
>eliminate any stretch. Thanks for the input.
>