On 23 August 2012 01:33, Gene Heskett <ghesk...@wdtv.com> wrote: > Today as I was reassembling it and attempting to adjust the gib screws, I > noted that the top face not only wasn't in contact with the bottom of the > slider, the tip of it at the bottom of the carriages v-cut was sharper than > the bottom of the carriages v-cut, so I purposely rounded off that edge > hoping that both sides of the V would make contact. Such is not the case > and never will be with this strip, it is not only about 50 thou thinner > than it should be, but when the angled face is in contact with the V-way, > its top face is clearing the bottom of the cross slider at a very > noticeable angle of at least 10 degrees.
I am not sure that the top and bottom angles matter. My analysis of how it is meant to work is that the strip and screws is meant to pull the slide right and down. Right against the dovetail, and down onto the flat top face of the saddle. It might be worth looking at the left side of the dovetail. My milling column dovetail had been ground to leave a high land under the undercut, so whilst there was a nice smooth surface, that wasn't what the head ran on. It took me quite a while with a scraper to fix that. You might also find another example of the "sharp edge into rounded corner" problem at that left side. The adjusting strip ought to be able to pivot to sit flat against the underside of the dovetail. From what you say it seems like the gib or the dovetail are not flat. Personally I have never really liked the strip-and-setscrew approach, but some very respected lathe manufacturers have used it, so it can't be that bad. I do prefer tapered gibs though. -- atp 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
