Re: [CAD_CAM_EDM_DRO] small 3-axis micro stepper

I build my own controller from the drawings at
http://www.hans-w.com/modular.htm and that works fine. There's some images
of my mill at www.gizwiz.dk

It's not too hard to build, and costs around $45 pr. axis.

--Michael

----- Original Message -----
From: "J" <jaredts@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, September 17, 2002 4:22 AM
Subject: Re: [CAD_CAM_EDM_DRO] small 3-axis micro stepper


>
> OK--one vote so far that the 2.5 amp bipolar drive from xylotex may not be
enough (thanks Bob). Anyone have experience converting an Enco mill/drill
table to cnc? Anyone pushed their 2.5 amp cnc to the limit and want to
share your performance? Any help would be appreciated--just keep in mind
that I am on a tight budget and am no E.E. Here are the specs. on the Enco
slide table:
> *11" X 7-1/2" travel
> *10TPI leadscrews
> *The y-axis probably moves 35-40lbs with an empty table
> Do I have any choice but to buy a high dollar cnc controller (geckos are
high dollar to me!)? The ideal system would be able to make cuts with a
router or milling head (cutting steel would be nice), have a 60 i.p.m. rapid
and cut at around 10 i.p.m. minimum. By the way, xylotex suggested a nema
23 powermax II 253oz-in Bipolar motor (2.3 amps bipolar series). Thanks for
any replies.
>
> Robert Campbell wrote:Jared,
>
> First determine what stepper motors you are going to use with them. The
> xylotex board is limited to 35 volts.
>
> As a general rule, if you divide the 35 volts by 20 you would get 1.75
volts
> as the voltage for the stepper motors.
>
> You can ask others, but I think that 2.5 amps may not be enough.
>
> You may want to save up your money and buy Gecko drives.
>
> Bob Campbell
>
> ----- Original Message -----
> From: "J"
> To:
> Sent: Monday, September 16, 2002 12:54 PM
> Subject: Re: [CAD_CAM_EDM_DRO] small 3-axis micro stepper
>
>
> >
> > For anyone kind enough to offer 2 cents:
> > This stepper driver from xylotex looks like a good setup at a great
price.
> Before I go out on a limb and buy one, does anyone see anything wrong with
> this system for a small cnc? I have an Enco mill/drill table that is
> slightly larger and heavier than a Taig's. I don't know what to use as a
> spindle yet (I guess just a router for now). Is 2.5 amps bipolar enough? I
> would greatly appreciate any help from those more experienced than me
> (probably 99% of those reading this right now). My problem is that I can't
> afford geckos, and don't want to buy a unipolar driver board and be
> disappointed with the performance.
> > Thanks,
> > Jared
> > bsptrades wrote:
> > Just spotted this outfit on e-bay looks to be a nice simple package
> > using the newer allegro chips. The price seems fair at $90 for small
> > projects
> >
> > http://www.xylotex.com/
> >
> > Brian
> > BSP
> >
> >
> >
> >
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> OFF Topic POSTS: General Machining
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you have trouble.
> http://www.metalworking.com/news_servers.html
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> http://groups.yahoo.com/group/jobshophomeshop I consider this as 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.
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> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
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> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
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you have trouble.
> http://www.metalworking.com/news_servers.html
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> http://groups.yahoo.com/group/jobshophomeshop I consider this as 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.
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> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
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