Re: Stepper Motor Travel?

Tim, I think your on to something. Gecko 201's are what I'm using.
That would make sense but I guess I need to read the manual again.
Must have overlooked that if correct.

Barclay

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Tim Goldstein" <timg@k...>
wrote:

> What drives are you using? Virtually no one uses full step drives

any

> more so it is more than likely that your drives are 1/4 step if the
> movement is 1/4". That would divide each of the normal motor steps

into

> quarters so you would require 800 steps from the computer to move

one

> rotation and your step increment would be .0000625".
>
> Tim
> [Denver, CO]
> Sherline products at Deep Discount
> Mach1 & DeskCNC with credit card ordering
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>
>
> > -----Original Message-----
> >
> > I'm finalizing my first router and don't think I have
> > something setup right for the machine. I'm using 1/4-20
> > all-thread for the leadscrews and have astrosyn NEMA 23
> > motors that I think are 1.8 degrees per step. I setup the
> > axis for 200 revolutions per step and 20 as the tpi which
> > gave me an increment of .00025 inches/step. When I jog the
> > machine say 1.0 unit I was thinking it would go 1" but it
> > doesn't. It is more like .25" Am I calculating wrong or are
> > the jog units not in in inches? I've set the units to inches
> > in turbo cnc.
> >
> > Thanks,
> >
> > Barclay
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html