Sven, is this a stepper or servo system as this looks like a problem I had with my stepper based mill. I found that I was missing stepps on the withdrawal of the z axis due to accel timings.
Jason On Tue, 2009-09-22 at 22:36 +0200, Sven Wesley wrote: > Took a picture to show what happens. Really weird, when I cut straight > through the piece it's exactly the same depth all way. > http://www.primenta.se/pub/engrave.jpg > > In the picture I jogged the mill end back to the surface which was Z 0 from > the beginning, now Axis says 7.6 mm. > > Regards, > Sven > > > 2009/9/22 Sven Wesley <svenne.d...@gmail.com> > > > Did a test a minute ago. I used the romand.cxf font and changed the scale > > to 0.1 for both X and Y, the rest is untouched. It looks good in the Axis > > display, but it seems that Z is "zeroed" all the time and when the cut is > > done (13 characters) my original Z-sero is 9 mm offset! > > > > Regards, > > Sven > > > > > > 2009/9/22 Sven Wesley <svenne.d...@gmail.com> > > > > Sorry, I realise I was short with info. I'll check tonight what font I used > >> and if it looks ok in Axis (which I think it did yesterday). > >> > >> 2009/9/22 Chris Radek <ch...@timeguy.com> > >> > >> On Tue, Sep 22, 2009 at 02:36:26PM +0200, Sven Wesley wrote: > >>> > I downloaded engrave-11.py from > >>> > > >>> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Simple_EMC_G-Code_Generatorsand > >>> > made a text engrave file. For every cut it gets deeper and deeper, if I > >>> set > >>> > the depth to 0.1 mm it will cut more than 5 mm at the last letter. Is > >>> that a > >>> > known problem? > >>> > >>> You do not say whether the Gcode looks right (previews correctly in > >>> AXIS), so I can't tell whether you are reporting what you think is a > >>> problem with engrave-11.py, or asking for help with your machine which > >>> does not have correct repeatability on Z, or something else. > >>> > >>> I generated the default output of *EMC2 Rocks* and it looks fine to > >>> me. > >>> > >>> We need more information to help. > >>> > >>> Chris > >>> > >>> > >>> ------------------------------------------------------------------------------ > >>> Come build with us! The BlackBerry® Developer Conference in SF, CA > >>> is the only developer event you need to attend this year. Jumpstart your > >>> developing skills, take BlackBerry mobile applications to market and stay > >>> ahead of the curve. Join us from November 9-12, 2009. Register > >>> now! > >>> http://p.sf.net/sfu/devconf > >>> _______________________________________________ > >>> Emc-users mailing list > >>> Emc-users@lists.sourceforge.net > >>> https://lists.sourceforge.net/lists/listinfo/emc-users > >>> > >> > >> > > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry® Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9-12, 2009. Register now! > http://p.sf.net/sfu/devconf > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users