On Friday, June 08, 2012 05:21:05 PM Dave did opine: > This suggestion is obviously a hack, but might be worth trying. Try > pre-loading your carriage in a direction opposite your cutting direction > in an attempt to remove the backlash. > If you have a small lathe with a light carriage and your ways are well > lubed; your carriage might be "bouncing or wandering" in your half > nut. Try something like a bunge cord or extension spring to pull the > carriage back towards the tailstock and see if that makes a difference. > > A cable running over a pulley to a weight running up and down vertically > would do the same thing. That may allow you to run without any backlash > compensation. > > Dave > I thought of that Dave, but opted to pull the apron off & wound up with the carriage fitting better AND got rid of about half the backlash by cleaning swarf out of the half nut so it could close a bit tighter. Then I just found the following error is a linear function of carriage speed, so I am not done tuning yet.
But its dinner time here, BBL, probably on IRC Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> The Gordian Maxim: If a string has one end, it has another. ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
