Re: [CAD_CAM_EDM_DRO] Thanks - was: Things to check? is now: RUNNING~!

On Thursday 18 September 2003 11:41 am, Jon Elson spake:

> A little growling is probably ragged step pulses. Lost steps will be VERY
> obvious, much clattering! It definitely sounds like the step output of the
> computer is limiting things. What software are you using? What limit
> do you have set for max jog rate?

EMC on Red Hat 9 right now.
(more on this later)
Also the BDI-LIVE rc23.

I've tweaked the settings in the emc.ini up a bit as of today.
Here's the funny part :
Today, they moved a *LOT* faster, and were *MUCH* smoother doing
so, but at slower speeds, there is still much "racket" and choppiness.

Is this that "mid-band" tuning?

> >If the latter, that just means your
> >computer and software can't go fast enough. Speed that up, or set the
> >Gecko 210 to multiply the steps by some factor (reduce microstepping).

This is still messing with me.
So if I'm set to "HAlf" steps right now, I
should move to "Full" steps in the Geckos?

> >Hmmmm... this is a 800Mhz PIII laptop.
> >Now, in saying "multiply the steps", do you
> >mean setting the Gecko to full steps or micro-steps?
> >I'm confused on just what the direction of definitions mean here.
>
> First, you should find out whether the computer can go faster. Does one
> inch on the computer move the machine one inch? If so, the number of
> steps/inch is set right.

NO~!
Okay... we're making progress...
I just detailed this in a previous post.
Basically, I'm getting 1.250" when EMC is showing 10.000" of movement.

> But, you can set the max feed rates on the
> screen. Usually, it defaults to 50% of max. So, if it defaults to 45 IPM,
> you can go up to 90 IPM. The .ini file allows you to set the max_velocity
> (in units of inches per SECOND), so 90 IPM = 1.5 (IPS). Turn it up if you
> want to go faster.

Ahaaaaaaaa~!
Thank you~!

> >Ah, okay.
> >(it was the BDI-LIVE rc23 because I haven't had the
> >ability to dive back into compiling EMC yet. Soon, though)
>
> Well, you don't need to recompile EMC. Just install it directly from
> the CD.

No, no... I've been trying to steal time while caring
for my wife by trying to compile EMC on Red Hat 8 & 9.

Weyland