I had assumed that the microsteps/half steps were for increased
resolution. I stand corrected.
The gecko microsteppers are about 5 times the price of these basic
drivers. While I accept that "you get what you pay for" surely these
are not complete junk? I thought the resonance issues only happened
at certain speeds (or load/speed combinations?). If this is the
case, would it be a practical approach to go with these and work
around the resonance issues by adjusting feed/speed until I can
afford the upgrade to the microsteppers?
Al
--- In [EMAIL PROTECTED], "Statman Designs, LLC"
<[EMAIL PROTECTED]> wrote:
> microstepping has NOTHING to do with accuracy. It is a way of
eliminating
> low speed stepper resonance issues, and for me there is NO
SUBSTITUTE for a
> microstepping drive.
>
> Daniel J. Statman, Statman Designs
> www.statmandesigns.com
> [EMAIL PROTECTED]
>
> ----- Original Message -----
> From: "arielnh56" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, December 01, 2004 1:06 PM
> Subject: [CAD_CAM_EDM_DRO] Low cost 6A stepper drivers on eBay
>
>
> >
> >
> > There are two vendors selling basic 6A stepper drivers on eBay.
> >
> > One has a website http://www.electronicutopia.com and is selling
> > them for under $25. Seems to be a basic full step driver with no
> > isolation or heatsink.
> >
> > The other is user "esreng". His boards are about $47 but do half
step
> > and have a heatsink.
> >
> > I am looking for drivers to drive ~200oz/in steppers for my
Shoptask
> > 3-in-1. The Shoptask has a 2:1 ratio on the stepper drive and a
10
> > tpi lead screw so one full step would be 0.00025", which is more
than
> > the accuracy of my Acme lead screws, I think, so I don't think I
need
> > half step or microstep drivers.
> >
> > If anyone has any experience with these drivers or vendors or any
> > other advice on these it would be most welcome. I am on a small
> > budget so these are very tempting.
> >
> > thanks
> >
> > Alastair
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Addresses:
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> >
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> [Moderators]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
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> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this
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> sister site to the CCED group, as many of the same members are
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> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
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> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
> >
> >
> > Yahoo! Groups Links
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> >
> >
> >
> >
> >
> >
Addresses:
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URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
OFF Topic POSTS: General Machining
If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you
have trouble.
http://www.metalworking.com/news_servers.html
http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister
site to the CCED group, as many of the same members are there, for OT subjects,
that are not allowed on the CCED list.
NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T
POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
bill
List Mom
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