I'm a bit confused.  How do you get branched versions, and which one?

When you say "something other than", is this a branch from 2.7.4 PRTK?  
I can't use a non-PRTK branch here.

Danny

On 3/31/2016 11:13 AM, dan...@austin.rr.com wrote:
> But wouldn't that break the ability to home the gantry's sides independently?
>
> That's a huge problem.  The gantry isn't going to align itself.
>
> A relevant point of the context here is this is going into a community shop, 
> with a constant stream of new users with very limited supervision.  So "power 
> down these axes and mechanically align them" doesn't sound like a viable 
> option.  In the past I've had the stops aligned and ran the gantry into the 
> stops until both sides' steppers stalled... gently.
>
> But that sort of hackery won't really fly here.  People would just be jamming 
> it at high speeds and damaging the drives or at least keep screwing up their 
> zero.
>
> Danny
>
>
> ---- andy pugh <bodge...@gmail.com> wrote:
>> On 31 March 2016 at 16:34,  <dan...@austin.rr.com> wrote:
>> Pardon my ignorance, but what does "branch" mean here?  I have LinuxCNC 
>> 2.7.4 with Preempt-RT kernel support.  Would this mean going with something 
>> other than that?
> Yes, it would mean going with a development version of LinuxCNC rather
> than a released version.
>
> For aesthetic reasons I have been running JA versions on my machines
> for years (none of my machines require it). However for "normal users"
> it is maybe a step too far.
>
> This is why I was suggesting that you try running a trivkins config
> and use the "gantry" HAL component to link the joints.
>
> There is a sample HAL file here:
> https://github.com/cdsteinkuehler/linuxcnc/blob/0e0418b362f45d7ad332fa3f211cbf8c2f24efd9/configs/ARM/BeagleBone/Probotix/Comet.hal
>


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