On Mon, Jan 01, 2007 at 02:27:14AM -0500, Matthew Glenn Shaver wrote:
> 
> I recently upgraded a STG driven CNC mill from EMC1 to EMC2. Homing on
> an index pulse didn't work for me. I ended up setting the "home on index
> pulse" parameters for all three axes to "NO" in the .ini file. Luckily a
> precision home position wasn't critical to my client, but it is a loose
> end...

Index handling is finally coming together in the various drivers.
It's one of the nasty things that has to be handled in each driver
differently, and almost certainly requires the hardware in the
developer's hands for testing.  I think most of the drivers are
working today, except ppmc which Jon is working on, and stg.  There
are (at least?) two different stg cards and we ought to try to find
volunteers to bring them (and a machine with an ISA slot) to fest in
June, if we don't get it fixed before then.

> Finally I've found that keyboard jogging in tkemc is jerky. Starting a
> jog move seems OK, but upon releasing the key the axis jerks to a stop
> rather than smoothly decelerating.

Can you get us some more concrete information, like a halscope plot of
position (maybe with velocity using a ddt block) and a copy of the
entire configuration?  The free mode planner used for jogging is very
simple and hasn't been touched lately - I would be really surprised to
find it broken this way, but I've been surprised before.  Also what
emc2 version are you using?

Here is a short jog with position, vel, accel showing -- it looks
exactly as expected:  http://timeguy.com/cradek-files/emc/xjog.png

Chris


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