Greetings all; In my hole finder routine I have run in absolute distances because for the most part I was only interested in finding the center of the hole, and was using touch offs to locate one hole at a time.
But this won't work for the bolt holes in the back of the chuck since if I make the G38.2 Y motion as a search to function, it adds up in the run checker and tells me it way too big and exceeds the virtual y limits of my tables motion. The machine can reach the outer edges of the holes with around 1/4" to spare. So it looks like I will have to use relative movements so I can restrict the probing searches to around 1.25x the size of the bolt hole I've lowered the spinning probe into. But when I am in relative mode, what mode is the value recorded at contact in #5061 & #5062? relative, or absolute? Or, are they converted, one to the other by the G90-91 gcodes? I'm not allergic to sprinkling G90 and G91's around in the code, but the figures I obtain must be in absolute from the last touchoff co-ordinates so I can then know the absolute co-ords for the new drill holes in the backplate. Which in this case is the center of the bolt circle as determined by measureing the rear of the chucks center hole and using that as the touchoff 0,0 to an accuracy of about .00025" which is the repeatability of this code. What I'm saying is that the recorded value in those 2 vars, must for my uses, be absolute even if I'm doing the g38.2 stuff in relative mode. Thanks for any insight. -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
