Reviving my mill (EMC)

I've been away from the CAD_CAM_DRO world for a couple
of years and dusted off my mill (a grizzly mini mill
I converted with EMC...). I've got some dust or gremlins
in it because my system is hanging any time I try a
move... I'll need to work those things out.

I wrote my own parallel interface to use a 24 bit digital
IO card for I/O and added a few other things in there
like controlling spindle on/off over the RS232 port.
Now I'm thinking I need to upgrade and get things
a little more current, so I either need to re-wire
or port my changes up.

I'm using linux 2.2.14 with rtl 2.2, (I'm still
trying to figure out which version of EMC I'm running,
but it's about 2 years old). My system has problems with
circular interpolation (I,J type G02/3 moves)...

Right before I got too busy for the mill, the BDI had come out.
(although I was not terribly interested it as I had gotten
EMC working the slow way)..

Anyway, I was hoping that some of the EMC guys around here
might contact me off list (unless you think that it's
valuable to the group) and bring me up to speed on the tips
and tricks to the newer EMC and what platforms (distro and
RTL, etc) are best for building it up again.

One thing I'm considering is building my next EMC system up
under peewee linux, since then the system runs out of RAM
or read-only mounted hard-disk, and hence no fscking of file
systems or waiting to power stuff off. (I'm using this, running
linux off of 4MB flash cards for other projects).

Thanks, and sorry for bothering the list.

Thanks,
murph

Erie, CO