At 03:29 PM 7/2/2008, you wrote: >Andre' Blanchard schrieb: > >> > > >>>>> - Measurement of the surface for a Z-correction > >>>>> > >>>>> > >>>> probing? > >>>> > >>>> > >>> At the beginning of each program we measure the Z-profile of the surface > >>> of the sheet. This profile is used to correct the position of the Z-axis > >>> to get a precise cutting depth. > >>> > >>> > >> EMC currently doesn't have a feature like that. I suspect it > >> could be done, but it wouldn't be trivial. > >> > > > > May be easier to run an EMC program to probe the surface and store the > data > > in a file. > > Run an offline program to appliy the probe data to the part program. > > Then run the modified part program in EMC. > > > >I am not sure. Let's say you have a movement over the whole sheet. How >could you correct it if you have a little buckle in the middle? > >I would say it should be a layer somewhere between the vector generation >and the hardware. What does "it wouldn't be trivial" mean in man-months? > >Regards, >Kai
The program that does the correction would take any long moves and divide them up into shorter moves so that the Z corrections could be applied evenly. Sounds like what you want would be an extension of a pitch error compensation system. Some text at the bottom of this page but others would know more about it then me. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Kinematics __________ Andre' B. Clear Lake, Wi. ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
