Glad you got it going. Life is much easier if you don't need to use Tool comp! :-)
Dave On 7/1/2016 9:07 AM, Eric H. Johnson wrote: > Thanks for all the help everyone, I think I have the problem resolved. For > anyone that cares, here are the sordid details. We had been having a problem > with the knife rotational axis losing a very small number of encoder counts > (generally less than a couple of degrees over a full pattern). The problem > had been isolated to one length of robotic cable but the error was small > enough to live with for all but the densest material we were cutting. So the > problem was initially attributed to the knife. Last weekend we re-ran the > one length of robotic cable, and the encoder problem went away, but not the > fit problem with the one material. > > It also seemed that the inset pieces were always coming out large by just a > few thous, and mostly on curves. Note: I had previously run some tests just > scoring cardboard, so as to have no load on the knife, and those all came > out dead nuts. Closer examination when cutting the dense material revealed > that the error was almost entirely in the Y axis. So I went back to the > tuning for Y, and pushed up mainly P. I am now getting a small amount of hum > in that motor, but the accuracy, and hence the fit is much improved. The > motor still runs cold, so I do not think it is harming the motor. There is > about a two week backlog that needs to be cleared out, but once that is > done, I can play with it a little more and see if I can get turn out the > hum. > > Thus in the end I did not need the tool offset, but perhaps uncovered an > oversight in use of auxiliary outputs with tool compensation. > > Thanks again, > Eric > > > is the part moving or the kerf filling with swarf thus affecting the size? > tho i cant picture how the part gets larger maybe in some direction and not > overall? > or some sort of stress relief is ocurring if the above, try glue-stops or > tabs else, i dunno (fiddler on the roof said. > you want to know why? > I'll tell you.. > I dont know ) > > > ------------------------------------------------------------------------------ > Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San > Francisco, CA to explore cutting-edge tech and listen to tech luminaries > present their vision of the future. This family event has something for > everyone, including kids. Get more information and register today. > http://sdm.link/attshape > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
