On Tuesday 28 August 2018 09:58:16 Gene Heskett wrote: > On Tuesday 28 August 2018 09:22:12 Les Newell wrote: > > Hi Gene, > > > > > So, where do I get this absolute Z position to feed lincurve from? > > > > Assuming you have a cartesian machine joint.N.pos-fb is probably the > > way to go. That's what I used when I did something similar on my > > lathe. > > > > Les > > That would likely work and well Les, if indeed that data is referenced > to the machines location vis-a-vis its actually 0.000000 at a g53 g0 > z0. nothing else is such a permanent reference. I'll make some tests. > If it moves with a touch off or tool loaded but not g43'd, its not too > valuable. > > Now to feed the missus and refill her coffee cup with freshly brewed, > and I'll hang a halmeter on it and find out. > > Thanks Les.
I don't have a joint.N.pos-fb,but I do have a joint.N.motor-pos-fb. I'm running master on the r-pi 3b. But, in order for it to be consistent, I have to "rm hm2-stepper.var" before I start LCNC -l, then its about .0006" from zero at the parking point after homing, and seems to be immune to touch offs. For my purposes thats plenty accurate enough. However, it will go thru zero to negative values by the time a tool gets close enough to work on something in the currently mounted ER-40 adapter as home is around 3" out from it. I'll have to find out if lincurve can work both sides of zero. I suspect it can or Andy would have fixed it long ago since its his code. ;-) Thanks Les, I believe I can make it work. > > -------------------------------------------------------------------- > >-- -------- 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 -- 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
