On Sat, 4 May 2013, Marius Liebenberg wrote: > Date: Sat, 04 May 2013 09:08:40 +0200 > From: Marius Liebenberg <mar...@mastercut.co.za> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: emc-users@lists.sourceforge.net > Subject: [Emc-users] Creep in X axis > > Hi All, > I have a problem on a machine that is confusing me (not to difficult to > do these days). It is a servo system using mesa 5i23 and 7i33 cards. I > have calibrated the x axis and during testing I find that the x axis > will go from the home position (using G0 x6000) to the correct distance. > Then when I say (G0 x0) it will go to x-70. It has a linear overshoot > across the range but just in one direction. Now from that same position > if I go (G0 x6000) it will travel exactly 6000mm. So it would seem that > the calibration figures are correct. > I did the PID tuning and it is pretty close to perfect. Any suggestions > where to look?
Are you saying the physical position overshoots by ~1% (and the DRO reads 0) when you do the G0 x0? > > -- > Regards / Groete > > Marius D. Liebenberg > MasterCut cc > Cel: +27 82 698 3251 > Tel: +27 12 743 6064 > Fax: +27 86 551 8029 > Skype: marius_d.liebenberg > Skype Me^(TM)! <skype:marius_d.liebenberg?call> > Get Skype <http://www.skype.com/go/download> and call me for free. > > > > > --- > avast! Antivirus: Outbound message clean. > Virus Database (VPS): 130503-1, 2013/05/03 > Tested on: 2013/05/04 09:08:41 AM > avast! - copyright (c) 1988-2013 AVAST Software. > http://www.avast.com > > > ------------------------------------------------------------------------------ > Get 100% visibility into Java/.NET code with AppDynamics Lite > It's a free troubleshooting tool designed for production > Get down to code-level detail for bottlenecks, with <2% overhead. > Download for free and get started troubleshooting in minutes. > http://p.sf.net/sfu/appdyn_d2d_ap2 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
