2012/7/23 Todd Zuercher <to...@pgrahamdunn.com>: > And the quality of the cut at > federates above 200ipm leaves much to be desired compared to our > similarly sized and specked ball screw driven machines. To give them > credit we are using them much harder than they were designed for, we > run'em 24hr 5 days a week, and have more than twice as many machining > hours on them than any other machine the manufacturer knows of.
Well, the last sentence explains it all. Machine is 7 years old, so it means - life of racks is about 2-3 years. IMHO that is not bad, especially, when You mention the conditions of their use. And I am sure, that You know - running ballscrews over their rated load would lead to the same result. Just that ballscrews could have higher rated load... I have racks and pinions in waterjet machine, they work very nice. I like them, because their maintenance is something I can do myself. I would not like to start changing balls in ballscrew or something like that... -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ 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
