Re: [CAD_CAM_EDM_DRO] Re: DeskWinNC, GeckoG210, Bridgett

Rapids are only not an issue when you don't have a CNC at home. When I first got mine I would have been happy with 5 ipm!!
Of course there is a big grey line between what is acceptable and what is "high performance" I personally use 30 ipm on a machine
with a 12" by 18" and it makes really good sense to me cause the drivers were free, and it does what I need it to do. Of course I
would like to go faster and that is why I am experimenting with the Geckos, and am very exited about Tim's experiments.
But let's face it folks, Really fast rapid rates are only important if you are concerned about productivity, or you are just
impatient as hell. In my view it does not make sense for a HOBBYIST to spend big bucks just to get 120ipm feedrates when he was
getting 45 or 60 before.
BUT, if we can get near 100 ipm with Geckos, that's another story. I'm already in that game. I can't wait to prove it out!

Also, you haven't answered my question about why the motor was running so fast in FULL step mode and could'nt do it in 10x
microstep. Was it motor stalling or step rate limited?
Somebody correct me if I'm wrong but this shouldn't matter with the G210 it is ALWAYS in microstep, just taking more or less steps
per step signal input.

Tim Goldstein wrote:

> If you check out the page I put up on the web you will se it lists 24 IPM as
> both the maximum cutting rate and the rapid rate for X and Y. Z is listed as
> 12 IPM. On my machine the controller was shot and the control cabinet was
> not even shipped to me so I can't verify these numbers. All I can relate is
> that I had the Y doing 100+ ipm last night with the G210 Gecko drive.
>
> I know that many of you don't feel that maximum rapid rates are an issue for
> home shop use, but watching a table move 16" at 24 IPM is sure a waste of
> time.
>
> Tim
> [Denver, CO]
>
> > -----Original Message-----
> >
> > Tim,
> >
> > Wow, that is slow!!!! You'd want to plan your sequence of operations
> > very carefully if you needed multiple tools on a large part. Like
> > making a hole pattern, you might want to spot all the holes on one
> > end, then change tools and drill, rather than "rapiding" (and I'm
> > using that term loosely) from one end of the part to the other with
> > the same tool.
> >
> > Just to see what 25 ipm is like I set my 300ipm machine down to 25 to
> > get a feel for it. Frustratingly slow!!!
> >
> >
> > Just a thought, that 25ipm isn't the max cutting rate is it? With a
> > faster rate for rapids? I thought someone posted a rapid rate of
> > 125ipm for the old BOSS stepper machines a while back.
> >
> > thanks,
> >
> > Doug
> > FAQ: http://www.ktmarketing.com/faq.html
>
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