It does take longer on a lathe without a compound. You must watch the motion, make adjustments and watch again until you have the tool tip aligned with the threads. The more material you need to take off the part the less accurate your position must be to restart the cutting of the part. Stuart
On Wed, Nov 4, 2009 at 6:13 AM, Andy Pugh <a...@andypugh.fsnet.co.uk> wrote: > 2009/11/4 Jon Elson <el...@pico-systems.com>: > > > axis will just come to a stop and remain in sync. You can manually turn > the > > spindle over to see that Z is still slaved to the spindle. You can then > use > > caliper points to try to estimate the the offset needed, or just align > > the tool in > > the thread by eye. > > I think that this is the bit that is puzzling me. How do I move the > tool in the Z direction while it is slaved to the spindle? (Note that > I have no compound slide) > > Does the nominal thread begin at the start position and the index > mark? I suppose it must, as the G76 command doesn't take a > thread-start value. > > I guess in my case I can simply turn the handle on the leadscrew as my > stepper torque is not massive. But that seems inelegant. > > -- > atp > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus > on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- Few will listen, Of the few who listen, fewer still will understand, Understanding does not mean believe, Of the handful who believe, most may not know what to do, Those who even know, how many will actually do ? And the rare ones who have done it....... Need not listen anymore. you can lead a person to knowledge but you cannot make him think ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
