I'm using the LinuxCNC 2.7.4 with the realtime support.

Does the "2.8 pre" have the same RT support?

Danny


---- John Thornton <[email protected]> wrote: 
> Yup
> 
> On 8/30/2016 1:56 AM, [email protected] wrote:
> > So, I have to switch to 2.8-pre for JA?
> >
> > Danny
> >
> > ---- Charles Steinkuehler <[email protected]> wrote:
> >> On 8/25/2016 11:38 AM, [email protected] 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
> >> [email protected]
> >>
> >
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