Re: [CAD_CAM_EDM_DRO] EMC-installation

[Clint Bach <clintbach-at-earthlink.net>]

Hi,

I had a problem free install of both rt 2.2.13 and emc. I installed the
version of emc which comes with "Linux for Dummies". It uses the 2.2.12
RedHat  kernel. Next, I downloaded a new pre patched kernel. If you use
a pre patched kernel you get all the stuff rt needs... It's good
insurance.

After unpacking the tarball I followed the instructions in install.phil
and everything went without a glitch. My first install I tried the other
install instructions and failed.

EMC installed without a glitch. It was easy.

Now, if only the 2.2.13 version from Mar 15 didn't have that one little
bug that makes it useless I all would be Great!!! That bug is that it
looses two steps when changing directions. It only happens in one
direction so the two lost steps accumulates. Even if I could get EMC to
lose steps in both directions instead of only one it would be useful.
The problem is that my Slo-Syn drivers need a little more time to settle
down on the direction change. Could a pull up or pull down resistor
perhaps eliminate this? Maybe a capacitor on the driver's direction
input would make it lose a step in both directions? Could this be
handled by a post processor in Vector that adds two steps at a direction
change? Is this already fixed in the next version of EMC?

BTW, I'm using steppermod instead of freqmod because I get following
errors at anything over 0.6 jog rates. I could probably figure that one
out with the .ini file. 

Is there a current document which explains what every field in the .ini
file does and has recommendations about what to set them to? Perhaps
with a trouble shooting section?
Dan Falck wrote:
> 
> I am having some of the same problems with 2.2.13 right now.  RTLinux is
> working ( Frank... Zappa....Frank...Zappa...)  but when I install EMC it
> stops about halfway through the process.  It gets to a spot were it needs
> "asm/io.c" (I think) and then dies.  It's been a few days since attempting
> it and I will try it again when time permits.    EMC for 2.0.36 didn't give
> me this problem on the last two machines that I did.
> 
> Dan
> 
> At 10:50 AM 4/7/00 +0200, Christian Mies  wrote:
> >Hi out there!
> >
> >I am trying to test the EMC-software, but I did not manage to install it
> >till now.
> >I am using a SuSE-Linux 6.3 (kernel 2.2.13) wich is running fine.
> >The RTL-patch is applied, too, and is running.
> >The instalation-script works for a while, then stops the compiling due to
> >some
> >errors. I am not certain that EMC runs on my SuSE-Linux, perhaps it only
> >works
> >on RedHat, perhaps only some includes are missing, perhaps it does not
> >compile without RT-Linux?
> >
> >Anyone knows?
> >
> >