On Sat, 2009-06-06 at 12:10 -0500, Jon Elson wrote: > > Especially since this machine also has a horizontal spindle, it may make > a lot more sense to make > the knee the driven axis (Z for vertical, Y for horiz. spindle). > > Jon
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. 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. The diameter would be as large as would fit inside the knee housing. The magnets are expensive, so I am trying to figure out how to model the design so I can have a decent amount of confidence that it would work before actually making the real thing. A pneumatic counter balance is planned to reduce the usual asymmetric load. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ 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
