On Monday 06 July 2020 10:01:44 Gene Heskett wrote: > On Sunday 05 July 2020 20:56:52 Gene Heskett wrote: > > On Sunday 05 July 2020 18:54:25 andy pugh wrote: > > > On Sun, 5 Jul 2020 at 19:52, Gene Heskett <ghesk...@shentel.net> > > wrote: > > > > So what have I nuked to result in them now being not only > > > > disabled, but totally missing from the pin and parameter lists? > > > > > > Maybe you forgot to home the machine? > > > > Makes no diff, I thought of that too Andy. And its only the rpi > > version. And I enabled TWO_PASS but it fails loading rpspi then, so > > I had to turn that back off. > > > > Cheers, Gene Heskett > > I'm getting schmardter, but slowly. And its my ini settings that are > at fault, not LinuxCNC's at all. > > I've re-installed the last good build I made, dated May 5, because the > docs have dissolved on the later versions from the buildbot, losing > all the gfx for starters. > > So what I say here is based on the early may state of master. > > The problem is, I think, and I apologize, MY understanding of how > homeing works is broken. The current settings in the ini file have a > HOME and HOME_OFFSET both set to 0.00000, but the HOME switch trips at > a radius of nominally +5.181, about 20 thou from the mechanical out > limit. > > So, when homed, the dro says 5.181, which, since its a lathe, is > arbitrary but reasonably correct and this is where the homing > operation leaves X. Basicly backed out of the way far enough that z > can be homed and the empty toolpost will usually clear the jaws of an > 8" chuck as it homes well away from the chuck, then runs left a ways > and calls that home. Thats also arbitrary since there are 2 different > chucks and an er40 collet kit that might be installed in or on the > spindle. > > My clue that I'm miss-understanding all this is the red lines drawn as > the machines envelope in the backplot. They, for x, are several > inches outside the machines true limits. The inward limit I moved out > in the ini file about 4" to put the red line at a point reachable by > x, and it does indeed stop at the red line. > > So I need to set the HOME and HOME_OFFSET so it works about the same. > but the limits work. HOME_OFFSET needs to be somewhere near 5.5" > since its an 11" lathe but is HOME a copy or a -copy? Thats what I > need to find out. > And found out that with this QCTP and tooling, the max radius is a scant 3", or 6" diameter. Thats about what it takes to get close to zero on the dro when an average tool is within a few thou of centered on the spinning work. Thats arbitrary since the tool post and the tools are all arbitrarily positioned anyway, I can actually reach something that won't clear the bed. And the soft limits are working.
Now I go fight with sprint, I took the phone back but those jerks are sending me bills for now 2 months service I didn't use a millisecond of. Thanks Andy. 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
