Kirk Wallace wrote: > > > I have been thinking about that for my Bridgeport. I could replace the > ram with a horizontal spindle. I like that the chips clear the work > piece better. Or the spindle could be hung off the ram's accessory > mount, so that the spindle axis is parallel to X axis. > > I am a little concerned about what it's like to actually live with a > horizontal. My guess is that the operator does a lot more lifting. > You pretty much need to have a big tombstone fixture around all the time. Any small parts, vise, etc. are mounted to the back of the tombstone. Visibility and access to the workpiece are a pain. > To move the knee, I was thinking of a ball screw with the same > configuration as the present acme screw, except the bevel gear would be > replaced with a custom disk motor directly mounted to the screw end. You also need a brake and an encoder in there, and it would be a ROYAL pain to work on this stuff inside the knee! I suggest you drill an oval hole in the side of the knee, put a toothed belt pulley on the top of the knee screw and mount a motor to the outside of the knee. Possibly an idler pulley could wrap the belt around the motor pulley so that both sides of the belt are real close together when they pass through the side of the knee.
Jon ------------------------------------------------------------------------------ OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
