On Jul 22, 2012, at 11:04 AM, Jon Elson wrote: > Todd Zuercher wrote: >> Neither, of our 5x10 routers have any support on the long table screws >> (12 ft long). But they are large diameter screws, secured, fixed and >> stretched in position with a rotating nut moving the table. I think >> rotating the nut rather than the screw helps a lot with wip. >> > Well, it completely removes it, in fact! If the nut is not perfectly > centered, the screw > may vibrate slightly, but it won't do anything terrible. When the screw > is spinning > fast, the vibration can build to very large amplitude very quickly and > permanently > bend the screw.
The more I think about it, I really think this is the best solution despite the challenges involved. If it fails miserably, then I guess I will go with rack & pinion as a backup plan. Has anyone successfully machined the parts required? I would be willing to commission to have couple mounts to be manufactured. Looking on the web I did find some people who reported success building their own. Here is one mount: http://www.cnczone.com/forums/showthread.php?p=798791#post798791 And another: http://www.mycncuk.com/forums/showthread.php/3340-Rotating-Ballnut-design-ideas WIth a video of it running at 590 IPM here: http://www.youtube.com/watch?v=mSNFD9zx7fE Cheers, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated <http://3DTOPO.com> Phone: 208.462.4171 ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
