On Wednesday 31 August 2016 20:49:22 dan...@austin.rr.com wrote: > I'm using the LinuxCNC 2.7.4 with the realtime support. > > Does the "2.8 pre" have the same RT support? > > Danny
First, please don't top post, and second, yes. And the 2.7.4 you are running is quite old. If you have not updated since the install, please do so before we hear you have been hacked, there is a boatload of security fixes in the repositories. I just did a fresh install, and despite my having the last respin of the install dvd, there were still 244 updates, most of which were small so it didn't take long, perhaps 20 minutes with a reboot in the middle. > ---- John Thornton <j...@gnipsel.com> wrote: > > Yup > > > > On 8/30/2016 1:56 AM, dan...@austin.rr.com wrote: > > > So, I have to switch to 2.8-pre for JA? > > > > > > Danny > > > > > > ---- Charles Steinkuehler <char...@steinkuehler.net> wrote: > > >> On 8/25/2016 11:38 AM, dan...@austin.rr.com wrote: > > >>> So I guess it does do that. Now if one home was physically > > >>> installed where it trips 0.53" before physical end-of-travel, if > > >>> this were NOT the gantry axis I'd just give its final machine > > >>> coord as 0.53" and its machine coord is correct > > >>> (0=end-of-travel). But in this one, say one gantry switch is > > >>> mounted to trip at 0.5" but the other trips at 0.65". If homing > > >>> acts like non-gantry joints, it would physically leave it at > > >>> 0.5" and 0.65" and leave joint mode with it physically out of > > >>> sync like that. Which would mean the joints are racked by 0.15" > > >>> and will forever be locked like that because future moves are in > > >>> axis mode, not joint mode. > > >>> > > >>> Does it have the ability to physically move the joints into > > >>> alignment based on .ini parameters saying one switch is 0.15" > > >>> off, or do I just need to keep physically remounting one switch > > >>> until its trip point is "close enough" to the other? > > >> > > >> No. On the machines I wrote the gantry component for, typically > > >> there is a small screw used to adjust the tripping point for each > > >> homing switch. > > >> > > >> As Andy mentioned, you may want to just use a version of LinuxCNC > > >> that supports JA. When I wrote the gantry component that wasn't > > >> an option, and the behavior of LinuxCNC with any non-trivial > > >> kinematics (even something as simple as a gantry) was very > > >> painful from a user perspective (or at least from *THIS* user's > > >> perspective). I haven't messed with JA, but it's supposedly > > >> *MUCH* better at handling these sorts of machines. > > >> > > >> -- > > >> Charles Steinkuehler > > >> char...@steinkuehler.net > > > > > > ------------------------------------------------------------------ > > >------------ _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > -------------------------------------------------------------------- > >---------- _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ---------------------------------------------------------------------- >-------- _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > 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> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
