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 ) tomp tjtr33
On 06/30/16 22:52, Eric H. Johnson wrote: > I have been looking at several other possibilities, including that. The odd > thing is that it only happens with the one material. The densest of the > materials we are running. > > Thanks, > Eric > > > On June 30, 2016 11:21:03 AM EDT, Todd Zuercher > <zuerc...@embarqmail.com> wrote: >> Just a thought, is there a chance you have an imperfection in your head >> assembly or the kinimatics, that is causing your cut to be offset >> slightly? In other words are the pieces the same size if you cut them >> out in the opposite direction? >> >> ----- Original Message ----- >> From: "Eric H. Johnson" <ejohn...@camalytics.com> >> To: emc-users@lists.sourceforge.net >> Sent: Wednesday, June 29, 2016 11:18:39 AM >> Subject: [Emc-users] Tool offset >> >> All, >> >> >> >> I am cutting a dense mat material with an ultrasonic knife. It appears >> that >> when the fibers are cut I get a small amount of expansion so the part >> to be >> inset ends up just a little too large, even though it is cutting >> exactly the >> same size as the base in which it is to be inset. I was looking at tool >> compensations to see if I can adjust the tool path by a very small >> amount >> (0.005" - 0.01") to make the inset part just a little bit smaller, >> following >> the example here: >> >> http://linuxcnc.org/docs/2.5/html/gcode/tool_compensation.html >> >> >> >> The pattern runs entirely CW, so G41 should compensate in the >> appropriate >> direction. >> >> >> >> The example shows: >> >> G10 L1 P1 R0.25 Z1 >> >> >> >> Does Z1 have any meaning in compensating only in X and Y? >> >> >> >> If I set the compensation for the entire file, do I have to deal with >> individual lead-ins? >> >> >> >> And of course, is there an easier way to accomplish this? >> >> >> >> Thanks, >> >> Eric >> >> ------------------------------------------------------------------------------ >> 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 ------------------------------------------------------------------------------ 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
